Manuel d'utilisation / d'entretien du produit 4100GL du fabricant HP (Hewlett-Packard)
Aller à la page of 228
access sec ur ity guide www .hp .com/go/hpp r oc ur v e hp pr ocurv e ser ies 4100gl s witc hes.
.
HP Procurve Series 4100GL Switches Access Security Guide Software Release G.07.XX or Greater.
© Copyright 2001-2002 He wlett-Packard Company All Rights Reserved. This document contains inform ation whi c h is protected by copyright. Reproduction, adapta tion, or translation without prior pe rmissio n is prohibited, except as allowed under th e copyr igh t law s.
Contents Getting Started Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 T ACACS+ Authentication Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Out line of th e Steps f or Conf igurin g RADI U S Authenticat i on . . . . . . 3-6 1. C o nfi g ure Authen ti cation for the Access Methods You Want RADIUS To Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 2. Config ur e the Sw itch To Access a RAD I US Server .
1. As signing a Local Logi n (Operator ) and Enable (Manager ) Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 2. Generat ing the Swi t ch’s Public an d Pr ivate Key Pair . . . . . . . . . . 4-10 3. Providing the Switch ’s Public Key to Clients .
6 C onfiguring Port-Based Access Control (802.1x) Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ho w R A DIU S/ 802.1x Authent ica tion Affects VL AN Operati on . . 6-43 Static VLAN Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43 Messages R e lated to 802.1x Operati on . . . . . . . . . . . . . . . . . . .
Defining Authorized Managem e nt Sta t ions . . . . . . . . . . . . . . . . . . . . . 8-4 Overview of IP Mask Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 Menu: Viewing and Co nfiguring IP Author ized Manager s . . . . .
.
Getting Started Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Ov erv iew of Access Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . xii Comman d Syntax Conve n tio ns .
Getting Starte d Introduction Introduction This Access Security Guide is int ended for use w i th the follo wing switches: ■ HP Procurv e Switch 4 104G L ■ HP Procurv e Switch 4 108G L T o gether , these two dev i ce s are terme d the HP Procurve Series 4100GL Switches .
Getting Started Overview of Access Sec u rity Features All ows a ccess to the swi tch by a networked devic e having an IP add r ess previousl y con fig ured in the switch as "authorized".
Getting Starte d Command Synta x Conventions Command Syntax Conventions Thi s guide use s the fol l owing conventi ons for com m and syntax and displ ays.
Getting Started Related Publications Screen Simulations Figures contain ing simulat ed scr e en t e xt and command output look like t his: Figure 1. Exampl e of a Figure Showin g a Sim u lated Screen In some cases, brief comman d- outpu t se quences appear wi thout fig u re iden- tific a tion.
Getting Starte d Related Publications HP provides a PDF versi o n of thi s gui d e on t he Product Documentati on CD- ROM shi p ped with the swi t ch. Y o u can also download the late st copy fr om th e HP P r ocurve w ebsit e. ( S ee “Get ting Documentat i on Fro m th e W e b” on page xvii.
Getting Started Getting Documentation From the Web Getting Documentation From the W eb 1. Go to the HP Procurve w e bsi te at htt p :// www .hp.com/go / hpprocurve 2. Click on technical support . 3. Click on manual s . 4. Click on the product for whi ch you w a nt to view or downl o ad a manual .
Getting Starte d Sources for More Information Sources for More Information ■ If you need inform ati on on spec ifi c paramete rs in the menu inte rfa ce, refe r to the online hel p provided in the in terface. Online Help for Menu ■ If yo u need informati o n on a specif ic command in th e CLI, type the comma nd name followed by “help”.
Getting Started Need Only a Quick Start? Need Only a Quick Start? IP Addre s sing. If yo u just want to gi ve the sw it ch an IP address so that it can communicate on your network, or if yo u are not usi ng VLANs, HP recomme n ds that you use the Switch Se tup screen to quickly configure IP add r essin g.
.
1 Configuring Username and Password Security Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Configuring Local Pas s word Sec uri ty . . . . . . . . . . . . . . . . . . .
Configuring Use r name and Password Security Overview Overview Feature Default Menu CL I We b Set Usernames no user names set — — page 1- 6 Set a Password no passwords set pa ge 1-4 page 1- 5 page 1- 6 De lete Pass word n/a pa ge 1-4 page 1- 6 page 1- 6 Prote c tion Console access includes both the menu interface and the CLI.
Configuring Username and Password Security Overview If you do ste p s 1 and 2, above, the n th e next time a console session is start ed for either the menu interf ace or the CLI, a p r omp t appears f or a passwo r d.
Configuring Use r name and Password Security Configuring Local Password Security Configuring Local Password Security Menu: Setting Passwords As n o t e d earl i er in t h is sec t i on, user n a m e s a r e op t i ona l . C o n f ig u r i n g a user - name requi r es ei ther the CLI or the web browser in terface.
Configuring Username and Password Security Configuring Local Password Security If you have physical access to the switch, press and ho ld the Clear bu tton ( on th e f r ont o f th e swi t ch) fo r a min i mum of on e second to clear al l passwo rd pr otect ion , then ent er new passwo r ds as described earlier in this chapte r .
Configuring Use r name and Password Security Configuring Local Password Security T o Remove Password Pro t ection . Removing passwo r d p r otect ion means to eliminate password securit y . Thi s com m and pro m pts you to ver ify that you want to remove on e or both passwo r ds, th en clears the indicat ed pa ssword ( s).
2 T ACACS+ Authentication Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Termi n ology Used in TACACS Applicati o ns: . . . . . . . . . . . . . . . . . . . . 2-4 Ge neral S y stem Re qui r ements .
TACACS+ Authentication Overview Overview Feature Default Men u CL I We b view the switch’ s authentication configuration n/a — page 2-1 0 — view the switc h’ s T A CACS+ ser v er contact confi.
TACACS+ Authentication Overview server and (2) local passwords confi g ured on the switch. That is, with T A CACS+ configured, the switch fir s t tries to contact a designated T ACA CS+ serv er fo r authenti cation ser vic es.
TACACS+ Authentication Terminology Used in TA CACS Applications: T e rminology Used in T ACACS Applications : ■ N A S ( N etwork A c cess Ser v e r ): T h is is a n i nd u s t ry t e rm f o r a T A CACS-aware device that communi cates with a T ACACS server for authentication services.
TACACS+ Authentication General System Requirements • T A CACS + Authentication: This method ena bles you to use a T ACACS+ s e rver in your network to ass i gn a unique password, user name, a n d privilege le vel to e ach in dividua l or group w ho needs access to one or mor e sw it ches or other T A CACS-aware devices.
TACACS+ Authentication General Authentication Setup Procedure Notes The eff e ct i veness of TA C ACS+ se c u r i ty d e p e nds on c o rrectly using your TACACS+ ser v er application. For this reason, HP recommends that you thoroughly tes t all TACACS+ configur ations used in your network.
TACACS+ Authentication General Authentication Setu p Procedure 2. Determine th e f o llowing: • The IP address(es) of the T A CACS+ server(s) you want the switch to use for authentication. If you will use more than one server , de termine which ser v er is yo ur first-choice for authentication ser v ices.
TACACS+ Authentication General Authentication Setup Procedure Caution Y o u s ho u ld ens u re t h at t h e s w i t ch h a s a l o cal M a n a ger passwo r d. O t her - wise, if authentication through a T ACACS+ server fails for any reason, then unauthorize d access will be a vai la ble throu gh th e con s ol e port or Telnet.
TACACS+ Authentication Configuring TACACS+ on the Switch Configuring T ACACS+ on the Switch Before Y ou Begi n If you are new to T AC ACS+ authentication, HP recomm en ds that you read the “General Authenticat ion Setup Pro c edu r e” o n pa ge 2- 6 an d configure your T A CACS+ server( s ) before configur ing authenticati on on the switch.
TACACS+ Authentication Configuring TACACS+ on the Switch V i ewing the Switch’ s Current Authentication Configuration This command lists the n u mber of logi n attemp ts t he swi t ch al lows in a sin gle lo gin session, and the prim ary/secondary access method s confi g ured fo r each type of access.
TACACS+ Authentication Configuring TACACS+ on the Switch Configuring the Switch’ s Authentication Methods Th e aaa authe n ticati on command configures the access control for conso le port and T e lnet a ccess to the swi t ch .
TACACS+ Authentication Configuring TACACS+ on the Switch T able 2-1. AAA Authentication Pa rameters Name Default Range Function console n/a n /a Specifies whether the command is conf igu r in g au thentic ation for the conso l e por t - or - or T e lne t access method for the switch.
TACACS+ Authentication Configuring TACACS+ on the Switch T able 2-2. Prima r y/Secondary Authen tication T abl e Access M e thod and Privilege Level Au thentic ation Op tions Effect on Access Attempts Primary Second ary Console — Log in local none* Local userna me/password access only .
TACACS+ Authentication Configuring TACACS+ on the Switch For example, here is a set of acc e ss options and the corre s ponding comma n ds to configure the m: Console Login (Operat o r o r Read-Only) Access: Pri m ary using T A CACS+ server . Secondary using Local.
TACACS+ Authentication Configuring TACACS+ on the Switch Configuring the Switch’ s T A CACS+ Server Access The tacacs-serve r command configures these parameters: ■ The host IP address(es) for up to three T ACACS+ servers; one fir s t cho i ce and up to tw o ba cku p s.
TACACS+ Authentication Configuring TACACS+ on the Switch Note on Encryption Key s Synta x: tacacs-server host < ip-addr > [key < key - string >] Adds a TACACS+ server an d opt i onally assigns a s erv er-s pecifi c encryption key .
TACACS+ Authentication Configuring TACACS+ on the Switch Name Default Range host < ip-addr > [key < key-string > none n/a Specifies the IP address of a device running a T A CACS+ serv er applica t ion. Optionally , can also specify the unique, per - serve r encryptio n key to us e when each assigned server has its own, un iqu e key .
TACACS+ Authentication Configuring TACACS+ on the Switch Name Default Range Name Default Range key < key- s tring > none (nu l l) n/a Specifies the optiona l, global "encryption key" that i s also assigned in the T A CA CS+ server(s) that the switc h will access for authentication.
TACACS+ Authentication Configuring TACACS+ on the Switch T he "10" ser v er is now the " first-choice " T A CACS+ au the n tic a tion devi ce. Figure 2-5. Example of the Switch After Assigning a Different "Fir st-Choice" Server T o re move the 10.
TACACS+ Authentication How Authe n tication Operates To del e te a per-server e n cry p tion key in the switch, re-enter the tacacs-se rver host co mm and wi thout t h e key parameter. For example, if you have north01 configured as the encryption key for a TACACS+ server with an IP address of 10.
TACACS+ Authentication How Authentication Operates Using figure 2-6, a b ove, after e i ther sw it ch detec t s an opera t or’ s logon request fr om a remot e or directl y conn ect e d termin al, the foll ow ing events occ u r: 1. The sw itch queries the f irs t- choi ce T ACACS+ ser v er for authentication of the request.
TACACS+ Authentication How Authe n tication Operates Local Authentication Process When the switch is configured to use T ACACS+, it reverts to local authentica - tion only if one of thes e two co nditions exist s : ■ "Local" i s the authenti cation op ti on fo r the access method bei n g used.
TACACS+ Authentication How Authentication Operates Using the Encryption Key General Operation When used, the encr yption key (someti me s termed "key", "secre t key", or "s ec.
TACACS+ Authentication Controlling Web Browser Interface Acces s When Using TACACS+ Authentication F o r examp l e, you w ou l d u s e t h e next co mmand to c o nf i g ure a g l obal encryp - tion key in the switc h to match a ke y ente red as north40camp us in tw o target TACACS+ ser v ers.
TACACS+ Authentication Messages Related to TACACS+ Operation Messages Related to T ACACS+ Operation The sw it ch gen e rat e s the CL I message s listed below .
TACACS+ Authentication Operating Notes ■ When T ACA C S+ is not enabled on t h e switch—or when the switch ’ s only designated T ACACS+ servers ar e not accessible— setting a local Operator passwo r d with ou t also setting a local Manag er password does not protect the switch from man a ge r - l evel a cc e ss by unautho - rized persons.
3 RADIUS Authentication and Accounting Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Termi n ology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RADIUS Authenti cation and Accounting Overview Overview Feature Default Menu CL I We b Configuring RADIUS Auth en tication None n /a 3-6 n /a Configuring RADIUS A ccounting None n /a 3-16 n/a Vi ewing.
RADIUS Authentication and Accounting Terminology T e rminology CHAP (Ch a l l enge - H a n dsh a ke Auth e n t i c a tion Protoco l ): A chal l e nge - response authentic a tion protocol that uses the Message Digest 5 (MD5) hashi ng scheme to encrypt a response to a ch alle nge from a RAD I US server .
RADIUS Authenti cation and Accounting Switch Ope r ating Rules for RADIUS Switch Operating Rules for RADIUS ■ Y ou must have at least one RA DIU S server accessible to the switc h. ■ The switch supports authentic a tion and ac counting us ing up to three RADIUS ser v ers.
RADIUS Authentication and Accounting General RADIUS Setup Procedure General RADIUS Setup Procedure Preparation: 1. Configure one to thre e RADIUS server s to support the switch. (That is, one pri m ary server and one or tw o ba ck ups.) Re fer to the documentation provi d ed with the RADIU S server applica t ion.
RADIUS Authenti cation and Accounting Configuring the Switch fo r RADIUS A u the n tication Configuring the Switch for RADIUS Authentication RADIUS Authentication Commands Page aaa authentication 3-8 .
RADIUS Authentication and Accounting Configuring the Switch for RADIUS Authentication Note Th i s st e p assum e s you have a l ready c o n f igu r ed t h e RADIUS serve r (s) t o support the swi t ch. Refer to th e documentation pro vid ed with the RADIUS ser v er documentati on .
RADIUS Authenti cation and Accounting Configuring the Switch fo r RADIUS A u the n tication 1. Configure Authentication for the Access Methods Y ou W a nt RADIUS T o Protect This sect i on descr ibes .
RADIUS Authentication and Accounting Configuring the Switch for RADIUS Authentication For example, suppose you have alread y configured lo cal passwo r ds on th e switch, but want to use RADIUS to pr .
RADIUS Authenti cation and Accounting Configuring the Switch fo r RADIUS A u the n tication 2. Confi g ure the Switch T o Access a RADIUS Server This section desc ribes how to confi gure the switch to i n teract w i th a RADIUS server fo r both authenticat ion an d accounting servi c es.
RADIUS Authentication and Accounting Configuring the Switch for RADIUS Authentication For example, suppose yo u h ave c o nfi g ure d the swi t ch as shown in fig u re 3 -3 and you now need to make the following chan ges: 1. Change the encrypti on key for the serve r at 10.
RADIUS Authenti cation and Accounting Configuring the Switch fo r RADIUS A u the n tication 3. Confi g ure the Switch’ s Global RADIUS Parameters Y ou can configure the switc h for the fo llowing g .
RADIUS Authentication and Accounting Configuring the Switch for RADIUS Authentication radius-server timeout < 1 .. 15 > Specifie s the maximum time th e switc h waits for a response to an authenticati on request before counting the attempt as a failure.
RADIUS Authenti cation and Accounting Local Authentication Process Aft er two attempts failing due to username or passwor d entry errors, the switch wil l ter m inate the session . Glo bal RADIU S para meter s from figur e 3-5. These two ser v ers wil l us e th e global encryp t ion key .
RADIUS Authentication and Accounting Controlling Web Browser Interface Acces s When Using RADIUS Authentication For local authenticat ion, the swi t ch uses the Op erator -level an d Manag er -level use r nam e/pa sswo r d set(s) p r eviously co nfigured loca lly on th e switch .
RADIUS Authenti cation and Accounting Configuring RADIUS Accounting Configuring RADIUS Accounting RADIUS Accounting Command s Page [no] radius- s erver host < ip-ad d ress > 3-19 [ acct-port <.
RADIUS Authentication and Accounting Con f iguring RADIUS Accounting (For 802.1x information fo r the swi t ch, refer to “C onfiguring Port- B ased Acc e ss Co ntrol (802.
RADIUS Authenti cation and Accounting Configuring RADIUS Accounting ■ If access to a RADIUS server fails du ring a session, bu t after the cli e nt has been a u the n ticated, the switch continues to assume the server i s available to rec e ive accounting data.
RADIUS Authentication and Accounting Con f iguring RADIUS Accounting 1. Configure the Switch T o Access a RADIUS Server Before y ou config ur e the ac tual acco unting pa ram et e rs, yo u should first configure the swi tch to use a RAD IUS serve r . This is the same a s the process de scribed o n pa ge 3-10.
RADIUS Authenti cation and Accounting Configuring RADIUS Accounting Because the r adius-s erver command inc lu des an acct-p ort elemen t with a non default 1750, the switch assigns this value t o the accounting p ort UDP port n u mbe r s.
RADIUS Authentication and Accounting Con f iguring RADIUS Accounting ■ Start - Stop : • S e n d a start record ac c ounting not i ce at the b e ginn i n g of the account - ing session and a stop r e cor d noti ce at the end of the se ssio n .
RADIUS Authenti cation and Accounting Configuring RADIUS Accounting 3. (Optional) Configure Session Blocking and Interim Updating Options These opt i onal paramet e rs give you addi ti onal cont ro l ov er accoun ti ng d ata.
RADIUS Authentication and Accounting Viewing RADIUS Statistics V i ewing RADIUS Statistics General RADIUS Statistics Syntax: show rad i us [ host < ip-add r >] Shows general RADIUS configuration , in cluding the server I P addresses. Optional form shows data for a specific RADIUS host.
RADIUS Authenti cation and Accounting Viewi n g RADIUS Statistics Te rm De finition Round T r ip T ime Th e time interval between the mo st recent Accounting-Respo n se and th e Accounting- Request that matched it from th is RADIUS accounting server .
RADIUS Authentication and Accounting Viewing RADIUS Statistics RADIUS Authentication Stati s tics Syntax: show a u thenticatio n Di splays the pri m ary and secondary authentication methods configured for the Console, T e lnet, Port-Access (80 2. 1x), and SSH methods of acce ssing the switch.
RADIUS Authenti cation and Accounting Viewi n g RADIUS Statistics RADIUS Accounting Statistics Syntax: show accounting Lists configured accounting interval, "Empty User " supression status, accountin g types, methods, and modes.
RADIUS Authentication and Accounting Changing RADIUS-Ser ver Access Order Figure 3-16. Exampl e Listing of Active RADIUS Accounting Sessions on t he Swi t ch Changing RADIUS-Server Access Order The switch tri e s to a ccess RADIUS ser vers according to the order in wh ich their IP addresses are listed by the show radius comma n d.
RADIUS Authenti cation and Accounting Changing RADIUS-Server Access Order T o excha nge the positions of the addre sse s so that the server a t 10.10.10.003 will be the first choice and the server at 10 .10.10.001 will be the la st, you w o uld do the follo win g: 1.
RADIUS Authentication and Accounting Messages Related to RADIUS Operation Messages Related to RADIUS Operation Message Meaning Can’t reach RADIUS server < x.x.x.x >. A designated RADIUS serve r is n ot responding to an authentication request. T r y pinging the server to determine wheth er it is accessib le to t he switch.
.
4 Configuring Secure Shell (SSH) Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Termi n ology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Secure Shell (SSH) Overview Overview Feature Default Menu CL I We b Generating a public/pr i vate key pair on the switc h No n/a page 4-10 n/a Using the switch’ s public key n/a n/a page.
Configu r ing Secure Shell (SSH) Terminology Note SSH in the HP Proc ur ve Series 41 00GL swi t ches is based o n the Open SSH software toolki t. Fo r m o re i nfo rmat i on on OpenSS H, visit htt p :// ww w .o penssh.com . Switch SSH and User Password Authentication .
Configuring Secure Shell (SSH) Prerequisite for Using SSH ■ PEM (Privacy E n hanced Mode): Refers to an ASCII-formatted cli e nt p ubl ic-k ey th at has be en encoded fo r por tabi lity and efficiency . SSHv2 cli e nt pu blic- keys ar e typ ica lly store d in the PEM format.
Configu r ing Secure Shell (SSH) Public Key Formats Public Key Formats Any client ap plication yo u use f or cli e nt public- k ey authenticatio n with th e swi t ch must have the c a pability export public key s . The switc h ca n accept keys in the PEM-Encoded AS CII Format or i n the No n- Encoded ASCII fo rmat .
Configuring Secure Shell (SSH) Steps for Configuring and Using SSH fo r Switc h and Client Authentication Switch Access Lev el Pri m ary S SH Authentication Authenticate Switch Public Key to SSH Clien.
Configu r ing Secure Shell (SSH) Ste p s for Configuring and Using SSH for Switch and Client Authentication B. Switch Prep arat ion 1. Assig n a login (Operator) and enable (Manager) passwo r d on th e swi tch (page 4-9 ). 2. Generate a public/pri vate key pa ir on the switc h (page 4-1 0 ).
Configuring Secure Shell (SSH) General Opera t ing Rules and Notes General Operating Rules and Notes ■ Public keys gen e rat ed on an SSH cl ient must be exportabl e to th e swi tch.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation Configuring the Switch for SSH Operation SSH-Related Commands in This Sectio n P age show ip ssh 4 -17 show c r ypto c l ient-.
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation Syntax: password < manage r | operator | all > Figure 4-6. Exampl e of Config uring Loc a l Password s 2. Generating the Swi t ch’ s Pu blic and Privat e Key Pai r Y ou must generate a public and priva t e ho st key pa ir on the swi t ch.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation Notes When you gen e rat e a host ke y pair on the switc h , the switch places the ke y pair in f l ash memo ry (a nd no t in t he running-c o nfi g fil e ). Also, the switch mai ntains th e key pai r across reboots, in cluding p ower cycles.
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation For example, to generat e and display a new key: Host Public Key for the Switch Ve rsion 1 and V e rsion 2 vie ws of same host publ ic key Figure 4-7.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation di stribut i on t o cl ient s is t o use a di re ct, se rial connection betwee n the sw itch and a management dev i ce (laptop, PC, or UN IX w o rk station), as de scribe d belo w .
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation 4. Add a ny data required by your SSH c lient appl ica t io n. For example Before saving the key to an SSH cli e nt’ s &quo.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation He xadecima l "Fingerpri nt s" of the Same Switch Phoneti c "Has h" of Swi t ch ’ s Public Ke y Figure 4-11.
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation Refer to “5. Configuring the Swi t ch fo r SSH Authenticat i on” on page 4-18.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation [port < 1-65535 | default >] The TCP port number for SS H connections (default: 22) . Important: See “Note on Port N u mber” on page 4-17. [timeout < 5 - 120 >] The SSH login timeout va lue (default: 120 seconds).
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation SS H does not p r otect t h e switch f r om unauthorized a ccess via the we b interface, T e lnet, SNMP , or the seria l port.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation Configures a password method for the primary and secondary enable (Manager) acc ess. If you do not spec- ify an optional secondary method, it defaults to none . Option B: Co nf ig uring the Switc h for Cl ient Pu blic -Key SSH Authentication.
Configuring Secure Shell (SSH) Configuring the Switch for SSH Operation Syntax: a aa authe n tic a tion ssh enable < local | tacacs | radius > < local | n one > Configures a password method for the primary and secondary enable (Manager) access.
Configu r ing Secure Shell (SSH) Configuring the Switch for SSH Operation Figure 4-14 shows how to chec k the results of the above co mmands. Li st s t h e c urr en t SSH authenticati on configuratio n. Shows the conte n ts o f the publi c key fil e downloaded with the copy tftp command in figur e 4-1 3 .
Configuring Secure Shell (SSH) Further Information on SSH Cli ent Public-Key Authentication Further Information on SSH Client Public-Key Authentication The section titled “5. Config uring the Swi t ch for SSH Au thenticat i on” on p a ge 4-1 8 li sts the steps for co nfiguring SSH a u the n tication on the swi t ch.
Configu r ing Secure Shell (SSH) Further Information on SSH Cli ent Public-Key Authentication 3. If there is not a match , an d yo u ha ve not configu r ed the switc h to a ccept a lo gin passwo r d as a secondary authenticat i on meth od, the switch denies SSH access to the client.
Configuring Secure Shell (SSH) Further Information on SSH Cli ent Public-Key Authentication Notes Co mments in pu b lic k ey files, suc h as smith@support.cairns.co m in figure 4-15 , may appear in a SSH client applica tio n’ s gen erated p ubl ic key .
Configu r ing Secure Shell (SSH) Further Information on SSH Cli ent Public-Key Authentication Note on Public The actual c onte nt of a public key entry in a publi c key fil e is determined by Key s the SSH client application generating th e key .
Configuring Secure Shell (SSH) Further Information on SSH Cli ent Public-Key Authentication Syntax: clear crypto pub lic - key Deletes the cli e nt-public-ke y file from the switch. Syntax: clear crypto pub lic - key 3 Deletes the entry with an index of 3 from the client- public-key file on the switch.
Configu r ing Secure Shell (SSH) Messages Related to SSH Operation Messages Related to SSH Operation Message Meaning 00000K Peer unreachable. Indicates an error in communicating with the tftp serve r or not finding the file to download.
Configuring Secure Shell (SSH) Messages Related to SSH Ope r ation Message Meaning Error: Requested keyfile does not ex ist. Th e cl ient key d oes not exist in the switc h. Use cop y tftp to download the key from a T F TP se rver . Generating new RSA host key.
5 Configuring Secure Socket Layer (SSL) Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Termi n ology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Secure Socke t Layer (SSL) Overview Overview Feature Default Menu CL I We b Generating a Self Signed Certificate on the switch No n/a page 5- 9 page 5-13 Generating a Certificate Request o.
Configuring Secure Socket Layer (SSL) Terminology HP Switch (SSL Server) SSL Client Brow ser 1. Switc h-t o-Client SSL Ce rt. 2. Us er-to - Switc h (log in passwor d an d enable p a ssword a u the n tication) option s: – Lo cal – T A C ACS+ – R ADIU S Figure 5-1.
Configuring Secure Socke t Layer (SSL) Prerequisite for Using SSL ■ C A -Signed Certificate: A c e rtific a t e v e rif i ed by a th i r d p a rty c e rtif - ic ate a u thori t y (CA). Authenti city of CA-Signed certificates can be veri f ied by an audit trail lea ding to a trusted root certificate.
Configuring Secure Socket Layer (SSL) Ste p s for Configuring and Using SSL for Switch and Client Authentication 1. Install an SSL capable browser ap plic at i on on a m ana gement st at i on you w a nt to use for access to the sw itch. ( Ref er to th e d ocumentatio n pr ovided with your bro w ser .
Configuring Secure Socke t Layer (SSL) General Opera t ing Rules and Notes General Operating Rules and Notes ■ Once you g e n e r a te a c e rtific a t e on the sw i t c h you should a v oid re - generating the certificat e without a compelli ng reason.
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Configuring the Switch for SSL Operation SSL-Related CLI Commands in This Section P age web-management ssl show config sh.
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation Using the web browser interface T o Confi g ure Local Passwo rds. Y ou can configure both the Op erator an d Manager passw o rd on one screen.
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation 2. Generating the Switch’ s Server Host Certificate Y ou must g e nerate a server certificate on the swi t ch before enablei ng SSL.
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation T o Generate or Erase the Switch’ s Server Certificate with the CLI Bec a use the host certificate is store d in fl ash in stead of th e running-conf ig file, it is n ot nece ssary to use writ e memo ry to save the ce rti f icate .
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Comments on certificate fields. The re are a numbe r arguments used in th e ge neration of a server certificate. table 9- 1, “Certi fica te Field D e scriptions” desc ribe s thes e arguments.
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation Notes "Zeroizing" the switch’ s server host ce rtifica t e or key automatically disables S SL (sets web- managemen t ssl to No ).
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Generate a S e lf-Signed Host Ce rtificate with the W e b browser interface Y ou can confi g ure SSL f rom the web b r owser interface.
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation For exam ple , to generate a new host certificate via the we b browsers interface : Security T ab SSL button Cer t ificate T y pe Box Key Size Selectio n Cer t ificate Argu ment Create Cer t ificate Bu tton Figure 5-5.
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Current SSL Ho st Certi f ica te Figure 5-6. Web b r owser Int e rface showing c u rrent SSL Host Certif ica te Generate .
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation The in stallation of a CA-signed c e rti f icate i nvo lves interac t io n with other ent iti es and consi sts of three phases.
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Cer t ificate Request Cer t ificate Request Rep ly -----BEGI N CE RTIFICA TE---- - MIICZDCCAc2gA wIB A gIDMA0XMA0GCS q GS.
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation Note Before enabling SSL on the switch yo u must generate th e switc h’ s host certificate and key . If you h ave not a l ready done so, refer to “2. Generating the Switch’ s Server Host Certificate” on pag e 5- 9.
Configuring Secure Socket Layer (SSL) Configuring the Switch for SSL Operation Using the CLI interface to enable SSL Syntax: [ no] w eb-management ssl Enables or disables SSL on the swi t ch. [port < 1-65535 | default:443 >] The TCP port number for SS L connections (default: 443).
Configuring Secure Socke t Layer (SSL) Configuring the Switch for SSL Operation Enable SLL and por t nu mbe r Selectio n Figure 5-8. Using the web b r ow ser int e rface to enable SSL an d select T C P port n u mbe r Note on Port HP recommends using the default IP port number (443).
Configuring Secure Socket Layer (SSL) Common Errors in SSL setup Common Errors in SSL setup Err o r During Possible Cause Generating host certificate on CLI Y ou have not g enerate d a certificate key.
.
6 Configuring Port-Based Access Control (802.1x) Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Ho w 802.1x O p era t es . . . . . . . . . . . . . . . . . . . . . . .
Configuring Port-Based Ac ce ss Control (802.1x) Overview Overview Featu re Default Menu CL I We b Configu r in g Switch Ports as 802.1x Authenticators D isabled n/a page 6-14 n/a Configu r ing 802.1x Open VLAN M ode Disabled n/a page 6-20 n/a Configuring Switch Ports to Operate as 802.
Configuring Port-Based Access Control (802.1x ) Overview ■ Loc a l authenti c a t i on of 8 02.1x c li e nts using the sw i t ch ’ s l o c a l user - name and password (as an altern ative to RADIUS au the n tication). ■ T em porary on-demand change of a p o rt ’ s VLAN membershi p statu s to support a current cli e nt ’ s session.
Configuring Port-Based Ac ce ss Control (802.1x) Overview Authenticating One Sw itch to Another . 802.1x authentic a tion also enables the swi tch to op erate as a suppl i cant w hen connected to a port on another switch running 802.1x authentic a tion.
Configuring Port-Based Access Control (802.1x ) How 802.1x Operates How 802.1x Operates Authenticator Operation This operation pro vid es securi ty on a direct, point-to -point li nk between a singl e cl ie nt and th e swi t ch, where bo th devices are 802.
Configuring Port-Based Ac ce ss Control (802.1x) How 802.1x Operates Switch-Port Supplicant Operation Thi s operation provides security on l i nks between 802.1x-a ware switches. For example, suppose that you w a nt to connect two swi tch es, where: ■ Switch "A " h a s port A1 co nfigu r ed for 802.
Configuring Port-Based Access Control (802.1x ) Terminology • A "f ai lu re" response cont i nues t h e b loc k o n po rt B5 and cau s es po rt A1 to wait for the "held -time " p e rio d be fore tryi ng again to achi eve authentication th rough p o rt B5.
Configuring Port-Based Ac ce ss Control (802.1x) Terminology EA P (Ex ten sible Auth entic a tion Prot oco l) : EAP enables network access tha t supports mul t iple authenti cat ion met hod s. EAPOL : Exten s ible Authenticat i on Prot ocol Over LA N, as defined in the 802.
Configuring Port-Based Access Control (802.1x ) General Ope r ating Rules and Notes membe r of that VLAN as long as at least one o ther port on the swi t ch is st a t i c al l y configured as a t a gg e d or untagg e d memb e r of the same Unau - thori z ed-Client VLAN.
Configuring Port-Based Ac ce ss Control (802.1x) General Opera t ing Rules and Notes ■ If a client a l ready has access to a swi t ch port when you c o nfi g ure the port for 802.1x authentic a tor operation, the port will block the client from further network access until it can be au thenticated.
Configuring Port-Based Access Control (802.1x ) Gen e ral Setup Procedure for Port - B ased Access Control (802.1x) General Setup Procedure for Port-Based Access Control (802.
Configuring Port-Based Ac ce ss Control (802.1x) General Setup Procedure fo r Port-B ased Acc e ss Control (802.1x) Overview: Configuri n g 802. 1x Authentication on the Switch This sect i on out line s th e steps for configuring 802 .1x on the switch.
Configuring Port-Based Access Control (802.1x ) Gen e ral Setup Procedure for Port - B ased Access Control (802.1x) 7. If you a re usi n g Port S ecurity on the switch, conf igure the swi t ch to allow only 8 02.1x access on ports config ured for 802.
Configuring Port-Based Ac ce ss Control (802.1x) Configuring Switch Ports as 802.1x Authenticators Configuring Switch Ports as 802.1x Authenticators 802.
Configuring Port-Based Access Control (802.1x ) Configuring Switch Ports as 802.1x Authenticators 1. Enabl e 802.1x Authenti cation on Selected Ports Thi s task configures the indivi dual ports you wa nt to operate as 802.1x aut h ent i cato r s f or poin t-to-point li nks to 802.
Configuring Port-Based Ac ce ss Control (802.1x) Configuring Switch Ports as 802.1x Authenticators aaa port-access auth enticator < po rt-list > (Syntax Conti nued ) [quiet-period < 0 .. 65535 > ] Sets the period during whi c h the por t does not try to acquire a supplicant.
Configuring Port-Based Access Control (802.1x ) Configuring Switch Ports as 802.1x Authenticators aaa port-access auth enticator < po rt-list > (Syntax Conti nued ) [ unauth-vid < vlan -id >] Co nf ig ur es an e xsi ti ng st atic VLA N to be th e U naut hori zed- Clien t VLAN.
Configuring Port-Based Ac ce ss Control (802.1x) Configuring Switch Ports as 802.1x Authenticators 3. Configure the 802.1x Authentication Method This t a sk spe cif ies ho w the switch will authenticate the cr ed entials provided by a suppl i cant conn e c t e d to a s w itch port configured as an 80 2 .
Configuring Port-Based Access Control (802.1x ) Configuring Switch Ports as 802.1x Authenticators 4. Enter the RADIUS Host IP Address(es) If you selecte d ei ther e ap-rad i us or c hap-radiu s for th e authentication m ethod, configure the swi t ch to use 1 to 3 RADIUS serve rs for authentic a tion.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode 802.1x Open VLAN Mode 802.1x Authentication Commands page 6-14 802.1x Supplicant Commands page 6-34 802.1x Open VLAN Mode Commands [no] aaa port-access authenticator [ e ] < port-list > pag e 6-29 [ auth-vi d < vlan-id > ] [ u nauth-vid < vlan-id > ] 802.
Configuring Port-Based Access Control (802.1x ) 802.1x Open VLAN Mode ■ 1st Priority: The port join s a VLAN to w hic h it has been assigned by a RADIU S server during authentication.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode T able 6-1. 802.1x Open VLAN Mode Options 802.1x Per - Port Configuration Port Response No Ope n VLAN mode: T he port auto m atically blo c ks a client that cannot initiate an au th en ti ca ti on sessi on.
Configuring Port-Based Access Control (802.1x ) 802.1x Open VLAN Mode 802.1x Per - Port Configuration Port Response Open VLAN Mode wi th Only a n Unau thorized-Clie nt VLAN Configu r ed : • • • Wh en the port de te cts a c lient, it automa t ically beco mes an un tagged member of this VLAN.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode Operating Rules for Au thorized-Client and Unauthorized-Client VLANs Conditio n Rul e Static VLANs use d as Authorize d- Client o.
Configuring Port-Based Access Control (802.1x ) 802.1x Open VLAN Mode Conditio n Rul e Multiple Authe n ticator Po rts Using Y ou can use the same sta t ic VLAN as the Unauthorized-Clie nt VLAN the Same Unautho r ized-Client a nd for all 802.1x authenticato r ports configured on the switch.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode Setting Up and Configurin g 802.1x Open VLAN Mode Preparati o n. This section assumes use of bot h the Unau thorized-Cl i ent and Authorize d-C lient VLANs. Re fer to T a ble 6-1 on page 6- 22 for other options.
Configuring Port-Based Access Control (802.1x ) 802.1x Open VLAN Mode Note tha t as an alternative , you can configure the swi t ch to use loca l passwo r d authen tication inste a d o f RADIUS authenticat i on. How e ver , this is less d e sirab l e because it me ans that all clients use the same passwords and have the same access priv il eges.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode 3. If you selected either e ap-rad i us or c hap-ra diu s for step 2, use the radius host command to configure up to thr ee RADIUS server IP addre s s(es) on the swi t ch. Syntax : rad i us host < ip-address > Adds a server to the RADIUS configurati o n.
Configuring Port-Based Access Control (802.1x ) 802.1x Open VLAN Mode Confi gur ing 802.1 x Op en VLAN Mode . Use these co mmands to actually configure Open VLAN mode. For a listi n g of the steps needed to pre pare the swi t ch for using Open VLAN mode, re fer to “Preparation” on page 6-26.
Configuring Port-Based Ac ce ss Control (802.1x) 802.1x Open VLAN Mode Inspe c ting 802.1 x Op en VLAN Mode Op erati o n. For informati on an d an example on viewing curre nt Open VLAN mode operation, refer to “Viewing 802.1x Open VLAN M ode Status” on page 6-38.
Configuring Port-Based Access Control (802.1x ) Option For Authenticator Ports: Configur e Port-Security To Allow Only 802.1x Devices ■ If a n authenticat ed c lient l o ses authenti cati on during a session in 802.1 x Open VLAN mode , the port VLAN membershi p reverts back to the Unauthori zed -Client VLAN.
Configuring Port-Based Ac ce ss Control (802.1x) Option For Authenticator Ports: Configure Po rt-Security To Allow Only 802.1x Devices Note on If the port’ s 802. 1x authentic a tor c ontrol mode i s co nfigured to auth o rized (as Blocking a Non- shown bel ow , instead o f au to ), then the first sour ce MAC address from any 8 02.
Configuring Port-Based Access Control (802.1x ) Configuring Switch Por t s To Oper ate As Supplicants for 802.1x Connections to Othe r Switches Configuring Switch Ports T o Operate As Supplicants for 802.1x Connections to Other Switches 802.1x Authentication Commands page 6-14 802.
Configuring Port-Based Ac ce ss Control (802.1x) Configuring Switch Ports To Operate As Suppli cants for 802.1x Connections to Other Switches 1. When port A1 on switch " A " is f i rst conne.
Configuring Port-Based Access Control (802.1x ) Configuring Switch Por t s To Oper ate As Supplicants for 802.1x Connections to Othe r Switches Confi g uring a Supplicant S w itch Port. N o te that you must e n a b le suppl i - cant operation on a port before y o u ca n change the supplic ant configuration.
Configuring Port-Based Ac ce ss Control (802.1x) Configuring Switch Ports To Operate As Suppli cants for 802.1x Connections to Other Switches aaa port-access supplicant [ eth e rnet ] < port-list > (Syntax Continu ed) [ auth-timeout < 1 - 300 > ] Sets the period of time the por t waits to receive a challenge from the authentica tor .
Configuring Port-Based Access Control (802.1x ) Displaying 802.1x Con f igurat ion, Statistics, and Counters Displaying 802.1x Configuration, Statistics, and Counters 802.1x Authentication Commands 802.1x Supplicant Commands 802.1x Open VLAN Mode Commands 802.
Configuring Port-Based Ac ce ss Control (802.1x) Displaying 802.1x C onfiguration, Stat istics, and Counters show port-access au the n ticator (Syntax Continue d) config [ [ e] < port-list >] S how s: • W hether port-access authenticator i s active • T he 802.
Configuring Port-Based Access Control (802.1x ) Displaying 802.1x Con f igurat ion, Statistics, and Counters An Unau th VLAN ID appear i ng in the Cur r ent VLA N ID column for the same p ort i ndicate s an un authenticated clien t is connecte d to thi s port.
Configuring Port-Based Ac ce ss Control (802.1x) Displaying 802.1x C onfiguration, Stat istics, and Counters 25 as an authorize d VLAN, then the po rt’ s me mbership in VLAN 1 w ill be tempora r ily suspe n ded wh enever an au th en ticated 802.1x cli e nt is attached to the port.
Configuring Port-Based Access Control (802.1x ) Displaying 802.1x Con f igurat ion, Statistics, and Counters Syntax: show vla n < vlan-id > Displa y s the port sta t us for the se lected VLAN , includin g an in dication of which port m e mb erships have been temporarily overridden by Ope n VLAN mod e.
Configuring Port-Based Ac ce ss Control (802.1x) Displaying 802.1x C onfiguration, Stat istics, and Counters Show Commands for Po rt-Access Supplicant Syntax: show port-access supplic ant [ [e] < p.
Configuring Port-Based Access Control (802.1x ) How RADIUS/802.1x Authenticat ion Affects VLAN Operation supplicant port to another without cl eari n g the stati s tic s data from the first po rt, t he authenti cato r’ s MAC address w il l appea r in the suppl i cant sta tis tic s fo r both ports.
Configuring Port-Based Ac ce ss Control (802.1x) How RADIUS/802.1x Authenticat ion Affects VLAN Operation For example, suppose that a RADIUS-au thenticated, 802.
Configuring Port-Based Access Control (802.1x ) How RADIUS/802.1x Authenticat ion Affects VLAN Operation Th is entry show s that p or t A2 is temporaril y untagg ed on VLAN 22 for an 802.
Configuring Port-Based Ac ce ss Control (802.1x) How RADIUS/802.1x Authenticat ion Affects VLAN Operation When the 802.1x cl ie nt’ s session on port A2 ends, the port discard s the tempora ry untagged VLAN membe r ship. At this time the stati c VLAN actually co nfi g ure d as untagged on the port again bec o mes available.
Configuring Port-Based Access Control (802.1x ) Messages Related to 802.1x Operation Messages Related to 802.1x Operation T able 6-2. 802.1x Operating Messages Message Meaning Port < port-list > is not an The ports in the port list ha ve not bee n e nabled as 802.
.
7 Configuring and Monitoring Port Security Contents Ov er view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Basic Op er ati on Blocking Unautho riz ed Tr affi c . . . . . . . . . . . .
Configuring a nd Monitoring Port Security Overview Overview Feature Default Menu CL I We b Displaying Current Port Security n /a — page 7- 9 page 7-15 Configuring Port Security d isabled — page 7-.
Configuring and Monitoring Port Security Basic Operation Gener a l Operation for Port Security . On a per - por t basis, you can configure security measure s to block un authori z ed de vic e s, and to send notic e of security vi olations.
Configuring a nd Monitoring Port Security Basic Ope r ation Switch A Port Securi ty Configured Switch B MAC Address Au tho riz ed by Switch A PC 1 MAC Address Au tho riz ed by Switc h A PC 2 MAC Addre.
Configuring and Monitoring Port Security Planning Port Security Planning Port Security 1. Plan your port securi ty configuration and moni toring according to the follow i ng : a. On which po rts d o y ou want port secu rit y? b. Which dev i ces (MAC addresses) are authorize d on each port (up to 8 per port)? c.
Configuring a nd Monitoring Port Security Port Security Command Options and Operatio n Port Security Command Options and Operation Port Sec u rity Comm ands Used in T h is Section show port-security 7.
Configuring and Monitoring Port Security Port Security Command Options and Operation T able 7-1. Port Security Parameters Parameter Des c rip tion Port L i st <[ethernet] port-lis t > Identifies the port or ports on which to apply a port security command.
Configuring a nd Monitoring Port Security Port Security Command Options and Operatio n Parameter Des c rip tion Act i on actio n <none | send-alarm | send-disable > Specifies whether an SNMP tra.
Configuring and Monitoring Port Security Port Security Command Options and Operation Assigned/Authori zed Addresses. : I f y ou manual ly a ssign a MAC address (using port-security < po rt-nu m ber.
Configuring a nd Monitoring Port Security Port Security Command Options and Operatio n W i th port numbers i n cluded i n th e command , sho w port-securit y displays Learn M o de, A d dress L i m i t , (a l a rm) Ac t i on, and Aut h or i z ed A d dresses f o r the s p ec - ified ports on a switch .
Configuring and Monitoring Port Security Port Security Command Options and Operation For i nfo rmat i on on th e i ndivid u al control paramet e rs, see t h e P o rt Securi ty Parameter table on page 7-7. Sp eci f ying Au thoriz ed Devices and Intrusio n Responses.
Configuring a nd Monitoring Port Security Port Security Command Options and Operatio n T he Address Limit has no t b een r eached. Al though the Address Lim i t is set to 2, only one device has been au thorized fo r this port. In thi s ca se you can ad d anot her withou t ha ving to also in cr ease th e Address Limit.
Configuring and Monitoring Port Security Port Security Command Options and Operation If yo u are adding a devic e (MAC address) to a port on which th e Authorized Addresse s list is already ful l (as .
Configuring a nd Monitoring Port Security Port Security Command Options and Operatio n Note Y ou can reduc e the address limi t below the numbe r of curr en tly authori z ed addresses on a port.
Configuring and Monitoring Port Security Web: Displaying a nd Configur ing Port Security Features W e b: Displaying and Configuring Port Security Features 1. Cl ic k on the Security tab . 2. Cl ic k on [Port Security] . 3. Select the settings you wa nt and, if you are usi n g the Static Learn Mode, add or edit the Author ized Addresses field.
Configuring a nd Monitoring Port Security Reading Intrusion Alerts and Resetting Alert Flags – The show po rt-secur ity i ntr usi o n- log com m and displ a ys th e Intru s ion L og – The log comm.
Configuring and Monitoring Port Security Rea d ing Intrusion Alerts and Resetting Alert Flags The log shows the most recent i n trusion at the top of the listing. Y o u cannot dele te Intru s ion Log ent ries ( unless yo u reset the swi t ch to i t s factory - default configuration).
Configuring a nd Monitoring Port Security Reading Intrusion Alerts and Resetting Alert Flags The In trusi on Aler t colum n show s “Y es ” for any port o n whic h a security vio l ation has been detecte d. Figure 7-10. Exampl e of Port Status Sc ree n w ith Intrusion Alert on Po rt A3 2.
Configuring and Monitoring Port Security Rea d ing Intrusion Alerts and Resetting Alert Flags (Th e intru s ion log ho lds up to 20 intr usi on record s and delet e s an intru s ion reco rd only wh en the log becomes ful l and a new i n trusi on is subsequ e ntl y dete cted.
Configuring a nd Monitoring Port Security Reading Intrusion Alerts and Resetting Alert Flags Intrusio n Aler t on port A1. Figure 7-12. Example of a n Unac knowledged Int r usion Ale r t i n a Port Statu s Displa y If you w ant ed t o see th e deta ils of th e i n trusi on, you would then en ter th e show port-securit y intrusion-log command.
Configuring and Monitoring Port Security Rea d ing Intrusion Alerts and Resetting Alert Flags Intru s ion Al ert o n por t A 1 is no w cleared . Figure 7-14.
Configuring a nd Monitoring Port Security Operating Notes fo r Port Security From the Menu Interface: In the M a in Menu , c lick on 4. Event Log and use N ext pag e and P rev page to revie w the Eve nt Log contents.
Configuring and Monitoring Port Security Operating Notes for Port Security W i thout b oth of th e above conf igur ed , the switch detects onl y the proxy server’ s MA C address, and not you r PC or wor k stat i on MAC add r ess , and interp rets your connect ion as unauthori zed .
.
8 Using Authorized IP Managers Contents Using Authorized IP Managers Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 Ov er view . . . . . . . . . . . . . . . . . . . . . .
Using Authorized IP Managers Overview Overview Authori zed IP Manager Featu r es Feature D efault M enu CLI W eb Listing (Showing) Authorized Managers n/a page 8-5 page 8-6 page 8-8 Configuring Author.
Using Authorized IP Managers Options Options Y ou can conf igur e: ■ Up to 10 a u thorized manager addresses , w her e eac h a d dress applies to either a singl e management stati on or a group o f .
Using Authorized IP Managers Defining Authorize d M anagement Stations Defining Authorized Management Stations ■ Auth or izing Sin g le Sta tions: The tabl e entry au thor izes a sin g le management stati on to hav e IP acce ss to the swi tch.
Using Authorized IP Managers Definin g Autho r ized Management Stations rized Man a ger IP address to authori ze f our IP addresses for managem ent station access. The details on how to use IP masks are provided unde r “Bu ildin g IP Masks” on page 8-9.
Using Authorized IP Managers Defining Authorize d M anagement Stations 2. Enter an Au tho riz ed Man ager IP address h ere. 5. Pr ess [E nter] , then [S ] (for Sav e ) to configur e the IP A u tho riz ed Manage r en try .
Using Authorized IP Managers Definin g Autho r ized Management Stations The above example shows an Authorized IP Ma nager List that allows stations to access the switch a s show n below : IP Mask Authorize d Station IP Address: Access Mode: 255.255.255.
Using Authorized IP Managers Web: Configuring IP Authorized Managers The resul t of ente ri ng the pre ceeding example is: • A uthorized Stati on IP Address: 10.28.227.105 • I P Mask: 2 55.255.255.255, w h ich aut hori z es only the specified station (10.
Using Authorized IP Managers Buildi n g IP Masks For web -ba sed help on how t o us e t h e w eb bro w ser i nte rface s c reen, cl ic k on th e [?] button pr ovi d ed on the web browser screen.
Using Authorized IP Managers Building IP Masks Configuring Multiple Statio ns Per Authorized Manager IP Entry The ma sk de te rmines whethe r th e IP address of a station on the ne two r k meets the criteria you specify .
Using Authorized IP Managers Buildi n g IP Masks Figure 8-5. Analy s is o f IP Ma sk fo r M u ltipl e -Sta tion Entries 1s t Oct et 2nd Oct et 3rd Oct et 4t h Oct et Manager -L evel or Ope r ator-Le v.
Using Authorized IP Managers Operating Notes Additional Examples for Au thorizing Mult iple Stations Entries for Authorized Manager List Results IP Mask 255 2 55 0 2 55 This combinati on specifies a n authoriz ed IP a ddress of 10.
Using Authorized IP Managers Ope r ating Notes • E ven i f you need p r oxy server access enabl ed in o r der to u se other application s, you can sti ll elimin ate proxy service fo r web access to the switch.
.
Index Numerics 3DES … 4 -3, 5-3 802.1x See port-ba s ed access con t rol . …6 -1 A aaa authentication … 2-9 access levels, authorized IP managers … 8 -3 accounting See RADIUS.- addres s authorized for port security … 7 -3 authentication See TACACS.
inconsistent value … 7 -12 O ope n VLAN mode See por t ac cess co ntr ol OpenSSH … 4-3, 5-2 oper a ting notes authorized IP managers … 8-12 port security … 7 -22 ope rator pas sw o rd … 1-2,.
supplicant , en abling … 6 -34 switch username and password … 6-3 terminolog y…6 -7 troubleshooting, gvrp … 6-43 used with port-security … 6 -31 VLAN operation … 6- 43 prior to … 7 -19, 7-20, 7-23 Privacy Enhanced Mode (PEM) See SS H.
host k ey pair … 4 -11 key, babble … 4 -11 key, fingerprint … 4-11 keys, zeroizing … 4-11 key-size … 4 -17 know n -host file … 4 -13, 4- 15 man-in-the-middle s p oofing … 4 -16 messages,.
overview … 1 -xii precautions … 2 -6 prepa r ing to configure … 2-9 preventing switch lockout … 2 -1 5 privilege level code … 2 -7 server access … 2-15 server prior i ty … 2 -18 se tup, .
6 – Index.
.
T ec hnical inf o r mation in t his doc ume nt is su bj ec t to c hange w it hou t no tice . ©Cop yr ight He wlett-P ack ar d C om pan y 2000, 200 2 .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté HP (Hewlett-Packard) 4100GL c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du HP (Hewlett-Packard) 4100GL - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation HP (Hewlett-Packard) 4100GL, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le HP (Hewlett-Packard) 4100GL va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le HP (Hewlett-Packard) 4100GL, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du HP (Hewlett-Packard) 4100GL.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le HP (Hewlett-Packard) 4100GL. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei HP (Hewlett-Packard) 4100GL ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
