Manuel d'utilisation / d'entretien du produit IES1248 du fabricant ZyXEL Communications
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IES1248 Support Notes March 2006.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 2 Index Application Notes .............................................................................................................. .............. 4 Provide Different DSL Port S peed s to differe nt subscribers .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 3 What is the default consol e rate of I ES1248 ? ......................................................... 81 How many static VLAN entri es can IES124 8 support ? .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 4 Application Notes Provide Different DSL Port Sp eeds to different subscribers An ISP may provide different L ine speeds for each DSL port. In our IES-1248 have an easy way to configure the line speed for each port.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 5 Set up Low Speed Profile. Give this prof ile a name like Profile_LowSpeed and input the MaxRate for Up S tream and Down S t ream. In this case, we set 512Kbps and 2048Kbps for Up S tream and Down Stream .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 6 1.2 Profile Assignment Click Basic Setting , xDSL Port Setup in th e navigation p anel to display configuratio n screen as shown. Assign Profile_LowSpeed to port 1.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 7 combobox. Check the Active and Pr ofile&Mode . After press the Paste button. It will pop up a screen to select the ports. Select the ports you want to copy the configuration to and press Apply button.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 8 2. Prestige 660R-61 Settings We configure Prestige 660R-61 as br idge mode. The default VPI/VCI of IES-1248 is 0/33. So we need to set up such values. Prestige 660R-61 has a T elnet server inside.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 9 2.3 Menu1 1.1: Remote Node Profile In menu1 1.1, we should activate this profile with “Active= Y es”. The Encapsulation and the Multiplexing are the same as the m enu 4.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 10 Y ou can click Basic Setting and xDSL Line Data in navigation Panel to display configuration screen as shown. Select th e port co nnected to the IES-1248.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 11 and belong to dif ferent VLAN. One is VLAN 10 and the other is VLAN 20. So they can’t communication with each o ther . But both PC 1 and PC 2 can c onnect to Internet.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 12 Add VLAN20. Assign Port 2, ENET1 and ENET2 to be members of VLAN20 as shown. Add VLAN200. Assign Port 1, Port2, EN ET1 and ENET2 to be members of VLAN200 as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 13 1.2 PVID settings After set up the three VLAN, we can s ee Vlan10, Vlan20 and Vlan200 as shown. No w , click VLAN Port Setting to set the PVID. W e assign VLAN 200(PVID) to ENET1, ENET2.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 14 1.3 Port Isolation If we just want to isolate ports of IES- 1248 and don’t want to set any VLAN, there is another easy way to do this. Click Basic setting , Switch Setup in navigation panel to display configuration screen as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 15 In this application, we demonstrate how to set u p the multiple PVCs environment. From the figure below , the PC wants to access the two kinds of network services.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 16 Add VLAN20. Assign Port 1, ENET1 to be members of VLAN20 as show . W e need to check the Tx T agging on ENET1. 1.2 VC profile setup Click Basic Setting and xDSL Profile Setup in navigation panel to display the configuration screen as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 17 Add Defval_CBR VC profile. Set up Encap, Class, PCR and CDVT as shown. Encap should be LLC the same as IES-1248. Class should be CBR which has higher priority in A TM QoS.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 18 W e hope VPI/VCI with 0/33 get the higher pr iority . W e should modify this VPI/VCI with Defval_CBR profile which we created before. Press Apply button to make it take ef fect.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 19 application, we already knew how to set up CPE with one channel (0/33). We just demonstrate how to set up second channel. 2.1 Menu1 1.1: Remote Node Profile In menu1 1.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 20 Add VLAN10. Assign Port 1, Port 10 to be members of VLAN10 as show .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 21 Add VLAN20. Assign Port 2, Port 10 to be members of VLAN20 as show . W e need to check the Tx T agging on Port 10. 3.2 PVID setup Click Advanced Application and VLAN in navigation panel t o display configuration screen as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 22 Let 10 be the PVID of Port 1 and 20 be the PVID of Port 2.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 23 will go via 0/34. And the 0/33 get the higher priority . The video traffic wil l go first when the two traffics arrive at the same time. 802.1x Application IEEE 802.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 24 environment. The Microsoft 802.1x client and ZyXEL V antage 50 will be used as supplication and RADIUS, respectively . Following sections will descr ibe the detailed procedure to set up the environment.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 25 2. V antage 50(RADIUS) settings: We use V antage 50 as the RADIUS server .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 26 3. W indows XP(Supplicant) settings: There are many supplicants we can c hoose like MeetingHouse Aegis client, Funk Odyssey client and Microsoft 802.1x client.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 27 After click the icon, there will be a dialog for entering the user name and p assword. Click ok after input the correct user name and password that are in the dat abase of authentication server .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 28 After above procedure, we can allow the authenticated port the access the server . If the DSL port doesn’t be authenticated, the PCs behind the port can’t access the network.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 29 Double Click the Kiwi’ s Syslog Server installi ng program. It is very easy to install it. After finishing the installation, you can r un it from the S t art Menu.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 30 When DSL ports are linked up/down, IES-1248 sends a record to Syslog server .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 31 How to set up a Ring Environment. W e set up Ring environment with one IES1248, one IES2000 and one ES4024. A PC behind IES can connect the PC in the ne twork even one of the links broken.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 32 Click Active to enable Spanning T ree Protocol. Then enable it on ENET1 port and ENET2 port. 2. Setup IES2000 2.1 Enable Spanning T ree protocol Click Switch Setup in the navigation p anel to display configuration screen as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 33 2.2 Enable Spanning T ree protocol on Ethernet ports Click Port Setup in the navigation p anel to display configuration screen as shown. Click msc to display MSC card Port setup.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 34 Check Sp anning T ree Protocol to enable it. T ake the same procedures with Up link1.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 35 3. Setup ES4024 3.1 Enable Spanning T ree protocol on Ethernet ports Click Advanced Application , S p anning T ree Protocol in the navigation p anel to display configuration screen as shown.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 36 4. Results W e can see the link between port 2 of ES4024 and Uplink1 of IES2000 will be blocked as shown after we connect. After we remove the cable between por t 1 of IES1248 and port 1 of ES4024, the connection still exists.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 37 Setting up the IGMP Snooping/IGMP Filtering W ithout IGMP snooping multicast traf fic is treated in the same manner as broadcast traf fic, that is, it is forwarded to all po rt.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 38 How to set up IGMP snooping/IGMP filtering Here, we only set up the IES1248 to support IGMP snooping and IGMP filtering. Please refer to the user guide of the V ideo Server and the subscriber device.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 39 1.2 Set up IGMP Filtering If we don’t set up IGMP filtering, the subscrib er will receive all the movies. W e set up a IGMP filter Profile and apply it to speci fic port to limit the channels subscriber can see.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 40 W e select the Subscriber1 in IGMP Filter Pr ofile Combobox. And click Apply to let the setting take ef fect. Go back to check the IGMP Snooping table. W e will see only two channels allowed to be forwarded to port 1.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 41 224.0.0.2---------all router s on this subnet 224.0.0.5---------all routers running OSPF 224.0.0.6---------all Designed Routers running OSPF 224.0.0.9---------for RIPv2 224.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 42 An ISP wants to provide multicast video se rvice to end user and subscribes who with dif ferent pay enjoy dif ferent programs. Client A (connect to ADSL port 1) is a normal subscribe, so he has no authority to access movie resource.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 43 2. Please key in “01:00:5e:00:00:01” in the “Adding new entry” and click “Add” to bring up the following screen. “ V” displays for member and “-” displays for non-member .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 44 4. Please add channel 1 multicast MA C address “01:00:5e:01:01:01” and channel 2 multicast MAC address “0 1:00:5e:02:02:02” as above. 5. Because port 1 is not member of both 2 channels, so it should be set as non-member of these 2 channels.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 45 6. For port 2, set it as non-member of channel 2 “01:00:5e:02:02:02” 7. For port 3, no need to change anything because its status as m ember of these channels by default.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 46 MAC address on specified ADSL ports, a range of ADSL ports or all ports, delete <multicast MAC> Remove a static multicast filter entry by deleting the associated MAC address.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 47 How to set up MAC Filter/Port Security Here, we will set up an environment to allow PCs with certain MAC address and the number of PCs behind port 3 to access the Intern et.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 48 Y ou will see the MAC address in the MAC field. Then check the Active check box of Port 3 and press Apply button to enable this feature. Only th e MAC addresses listed here can access the Intern et behind certain ports.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 49 Click Management , MAC T able in the navigation panel to display configuration screen as shown. And select port 3. Y ou w ill see the MAC table will be shown as you configured in previous steps.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 50 How to set up DHCP Relay Option 82 Environment Here, we will set up an environment to allow a PC get DHCP IP address in specific IP pool according to its DSL port, VLAN ID and the option 82 string.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 51 2. CPE settings Connect CPE to the 25 th DSL port. Please see former applications for Detailed settings. 3. IP Commander settings Open IP Commander . Right click “IP commander and then click “ connect new server ”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 52 Input the DHCP IP address or domain na me and click “ok”. Our IP is 192.168.1.99. Input user name and password. The defau lt user name is “administrator” and password is “incognito”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 53 It will bring up the following screen, pleas e make sure that your DHCP is in “ online ” status. Then click “ wizar d ” in the top tool bars and select “ rule wizard ”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 54 Give a name and description to the new rule. Assign a range of IP addresses or just one IP address to this rule . In our case, we set the IP pool from 192.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 55 After input IP pool, we select “ DHCP Option” in Keywords combobox. After select the “DHCP Option”, it will pop up “Add DHCP Option Rule” dialog.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 56 Select “option 82 Relay Agent Informati on”, sub-option 1, binary data. For port 25, VLAN 1, “1248”, please key in “0019000131323438” as the key value and click OK.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 57 Then pop up the following screen and you can just press Next button.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 58 Here we use “192.168.1.1” as gateway IP address of DHCP client PC.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 59 The rule creation has been finished..
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 60 After finishing all above procedures, your PC will get the IP address 192.168.1.201 when you send a DHCP request. Filter Some Cert ain Packet ISP may want to filter some kinds of packets.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 61 Please select port 1 and clear the NetBios check box. Meanwhile, you will see Filter Out in NetBios check box. Press Add button make the change take ef fect.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 62 Cascade two IES1248 (Daisy chain mode) Y ou know , the IES1248 is a remote mini-DSL AM. Wh en the subscriber num ber is increased, ISPs may cascade or daisy-chain the more then one IES1248 to extend the port number .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 63 VLAN Application Application Scenario A: Scenario Description In this scenario, each building has 2 de .
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 64 department could communicate with each othe r , but communication between dif ferent departments is forbidden for s ecurity and confidential reason.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 65 3. Please click VLAN port setting to bring up the following screen, setup PVID 10 for port 1, port 2, port 3; PVID 20 for port 4,port 5, port 6.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 66 Scenario Description: In this scenario, PCs belong to dif feren t divisions within a single corporation can not communicate with each other , and we lef t some ports of switches are for GVRP-aware PC and others are for VLAN- unaware PC.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 67 Add VLAN 20 to this switch, VLAN 20: port 4, fixed, unt ag; port 23, fixed, Tx tagging.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 68 2. For Switch B on Floor 1: Please follow the same steps to adding VLAN 10: port 3, fixed, untag; port 23, fixed, Tx tagging; port 24, fixed, Tx tagging”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 69 Please click VLAN port setting to br ing up the following screen, setup PVID 10 for port 3, PVID 20 for port 4, and en able GVRP on the top of the screen and port 1, port 2, port 23, port 24.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 70 Please set static VLAN 20: port 23, fixed, untag . Please add VLAN 30: port 1, fixed, untag; port23, fixed, untag; port 24, fixed, Tx tagging.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 71 Please setup PVID 30 for port 1 and enable GVRP on port 3 and port 24.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 72 Scenario Description: Scenario C is for all clients can su rf Internet or public resource when dividing multiple subnets for the same structu re from scenario B.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 73 Add VLAN 20 to this switch, VLAN 20: port 4, fixed, unt ag; port 23, fixed, Tx tagging.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 74 2. For Switch B on Floor 1: Please follow the same steps to adding VLAN 10: port 3, fixed, untag; port 23, fixed, Tx tagging; port 24, fixed, Tx tagging”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 75 Please click VLAN port setting to bring up the following screen, setup PVID 10 for port 3, PVID 20 for port 4, and en able GVRP on the top of the screen and port 1, port2, port 23, port 24.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 76 Please setup PVID 30 for port 1 and enable GVRP on port 3 and port 24. Please click “IP setup”, then setup 4 domains on ES4024/GS4024: Index IP address IP Subnet mask VLAN ID 1 192.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 77 After finish domain setting, please cha nge the default gateway and domain name server setting and click “Apply”.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 78 Y ou will see the following screen afte r finish filtering setting.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 79 Advise: 1. Please also configure routing protocol to make layer 3 Switch and gateway exchange their routing info rmation in this scenario.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 80 FA Q What is the maximum line rate of IES1248 ? It can support ADSL2+, so line rate can reach to 1.2Mbps in upstream direction and 25 Mbps in downstream in a short distance.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 81 What kind of the features that IES 1248 support s ? • RFC 2684 Bridge Mode (Replace RFC 1483) • IEEE 802.1Q • VLAN acceptable frame type filter • IGMPv2 Snooping • A TM QoS (UBR, CBR, VBR) per P VC • DHCP Relay Agent Information Option 82.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 82 ¾ IP ROUTE: 128 ¾ S tatic m ulticast address: 32 ¾ Igmp groups: 512 groups ¾ MAC learning: 14k (128.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 83 T rouble Shooting If my computer can’t access the DSLAM by WEB/T elnet/Ping from Ethernet port, only console screen can access successfully , what can I do? 1.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 84 Please key in “sys server show” to check se rver port, make sure that your application follow the server port in the list sho wn.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 85 will be added with CPU VLAN ID when access the IES. 6.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 86 Press Browse button to select the defau lt rom file. Then press “Upload” button. b) IES2000/3000 Upload default rom file to IES2000/3000 by ftp, web or console Console: When the system reboots, press any key within 3 seconds to enter debug mode.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 87 Suggest changing it to 1 15,200 temporarily to speed up speed by “atba5” command. T ake “atlc” command to restore th e default configuration file.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 88 WEB: Please open Maintenance page. Clic k “Restore Configuration” link. Press Browse button to select the default rom file. Then press the “Restore” button.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 89 Please ftp into the DSLAM. Replace the rom-0 with the default rom file by put command. c) IES1248 Y ou can set the factory default by CLI command or W EB WEB: Please open Maintenance Page.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 90 restoring. xDSL link fail? 1. Check if the DSL port is enabled. 2. Check if the cable is plugged well. 3. For ADSL, check the ADSL modem and line card are in the same mode (Annex A or Annex B).
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 91 I forgot the Password, how do I recover it? a.) IES-1000 Please use the BOOTP/TFTP and bin file to recover the confi guration to factory default. Please refer to IES-1000's user ma nual to see the recove ry procedure within Chapter 36.
IES 1248 Support Notes All contents c opyright (c ) 2006 ZyXEL C ommunicat ions Corporati on. 92 null-modem cable. 3. Check if the Console is damaged; if possi ble, try to change another one to give a try . 4. T ry to use the other T erminal software tool to see if it’ s a T erminal software issue.
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 ZyXEL Communications IES1248 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 ZyXEL Communications IES1248 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation ZyXEL Communications IES1248, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le ZyXEL Communications IES1248 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le ZyXEL Communications IES1248, 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 ZyXEL Communications IES1248.
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 ZyXEL Communications IES1248. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei ZyXEL Communications IES1248 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.
