Configuration Note for the Cisco SOHO 76 and 77 Routers

Transcription

1 Configuration Note for the Cisco SOHO 76 and 77 Routers This document describes software configuration information for the Cisco small office/home office (SOHO) 76 router, SOHO 77 router, and SOHO 77H router. For additional information on these routers, see the Related Documents section. For last-minute updates to this configuration note, refer to the Cisco SOHO series routers documentation Web site at the following URL: This document contains the following sections: Overview of Features Related Documents New and Changed Information Command Reference Configuration Instructions Obtaining Documentation Obtaining Technical Assistance Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA USA Copyright Cisco Systems, Inc. All rights reserved.

2 Overview of Features Overview of Features The SOHO 76 and SOHO 77 routers are asymmetric digital subscriber line (ADSL) routers that provide entry-evel access to the Internet. The routers include an Ethernet interface and an ADSL interface. The ATM interface supports the AAL5 (ATM Adaptation Layer 5) format. Memory Requirements The memory required for running the SOHO 76 and SOHO 77 and 77H routers is as follows: 8 MB of Flash memory 16 MB of dynamic RAM (DRAM) The Flash memory and DRAM cannot be upgraded. Software Requirements The SOHO 76, SOHO 77 and SOHO 77H routers support a subset of the IP/Firewall feature set. Related Documents The following documents provide additional information about installing and configuring these routers and configuring router software: Cisco 826 and SOHO 76 Routers Hardware Installation Guide provides installation information on the Cisco 826 and SOHO 76 routers. Cisco 826 and Cisco SOHO 76 Router Cabling and Setup Quick Start Guide provides quick installation information for the SOHO 76 router. Cisco 827 and SOHO 77 Routers Hardware Installation Guide provides installation information on the Cisco 827 and SOHO 77 routers. Cisco 820 Series and SOHO Series Router Cabling and Setup Quick Start Guide provides quick installation information for the Cisco SOHO series routers. Cisco 827 Routers Software Configuration Guide provides sample networks and router configurations for the Cisco 827 routers. Only the data configurations in the guide apply to the SOHO 76 and 77 routers. Regulatory Compliance and Safety Information for the Cisco 800 Series and SOHO Series Routers document provides safety warnings and compliance information for the router. Cisco IOS configuration guides and command references provide IOS commands and configurations for the router. For more information on the Cisco DSL CPE image provisioning, refer to the following documents: Cisco DSL CPE Automated Configuration Solution Guide Cisco DSL CPE Manager 2

3 New and Changed Information New and Changed Information This section describes information that has changed from previous software releases. A number of configuration commands, and show and debug commands run from EXEC mode, are no longer available on the Cisco SOHO 76, 77, and 77H routers. The configuration commands are no longer necessary. The show and debug commands have been replaced by new commands that are described in the Command Reference section on page 4. clear vpdn tunnel pppoe Command No Longer Supported The following virtual private dial-up network (VPDN) clear commands will no longer work for Point-to-Point Protocol over Ethernet (PPPoE) client sessions. clear vpdn tunnel pppoe This command has been replaced by the clear pppoe command, which is described in the Command Reference section on page 4. debug Commands No Longer Supported The following VPDN debug commands will no longer work for PPPoE client sessions: debug vpdn pppoe-event debug vpdn pppoe-error debug vpdn pppoe-packet debug vpdn pppoe-data These commands have been replaced by the debug pppoe command, which is described in the Command Reference section on page 4. show Commands No Longer Supported The following VPDN show commands will no longer work for PPPoE client sessions. show vpdn tunnel show vpdn session show vpdn These commands have been replaced by the show pppoe session command, which is described in the Command Reference section on page 4. vpdn Configuration Commands No Longer Supported The following commands are no longer necessary for configuring a PPPoE client on a SOHO 77 or 77H router: vpdn enable vpdn group number See the Configuring PPP over Ethernet section on page 8 for new configuration instructions. 3

4 Command Reference Command Reference This section describes new commands that are supported on the SOHO 76, 77, and 77H routers. show pppoe session Command The show pppoe session command provides information about currently active PPPoE sessions. The syntax of this command is shown below: show pppoe session [ { all packets }] Syntax Description all packets Show detailed information about the PPPoE session. Show packet statistics for the PPPoE session. Default None. Command Mode This command is available in EXEC mode. Command History Release Cisco IOS Release 12.2(4)YG Modification This command was introduced on the Cisco SOHO 76, 77, and 77H routers. Example The following example shows output for the show pppoe session command: SOHO-02#show pppoe session Total PPPoE sessions 3 PPPoE Session Information UID SID RemMAC OIntf Intf Session LocMAC VASt state d10.04c1 Et0 Vi4 N/A fc.dd50 UP d10.04c1 Et0 Vi3 N/A fc.dd50 UP e.70a8 ATM0 Vi5 N/A fc.dd50 VP/VC: 2/41 UP SOHO-02# clear pppoe Command Use the clear pppoe command to terminate one or more PPPoE sessions that have been established by PCs attached to the router. The syntax of this command is as follows: clear pppoe { interface if-type if-number [ vc { [ vpi / vci ] vci vc-name } ] rmac mac-addr [ sid session-id ] all } 4

5 Command Reference Syntax Description interface rmac all Clear PPPoE sessions on specified interface. Clear PPPoE sessions from specified client. Clear all PPPoE sessions. Default None Command Mode This command is available in Privileged mode. Command History Release Cisco IOS Release 12.2(4)YG Modification This command was introduced on the Cisco SOHO 76, 77, and 77H routers. debug pppoe Command The debug pppoe command provides information that is helpful for debugging PPPoE problems. The syntax of this command is shown below. To disable the debugging output, use the no form of this command. debug pppoe [ data errors events packets ] no debug pppoe [ data errors events packets ] Syntax Description data errors events packets Displays data packets of PPPoE sessions. Displays PPPoE protocol errors that prevent a session from being established, or displays errors that cause an established sessions to be closed. Displays PPPoE protocol messages about events that are part of normal session establishment or shutdown. Displays each PPPoE protocol packet exchanged. Default None. Command Mode This command is available in Privileged mode. Usage Guidelines The debug commands typically display a large number of debug messages. These should generally be used only on a debug router with a single active session. 5

6 Configuration Instructions Command History Release Cisco IOS Release 12.2(4)YG Modification This command was introduced on the Cisco SOHO 76, 77, and 77H routers. Configuration Instructions This section contains configuration instructions for the SOHO 76,77, and 77H routers. Configuring a Bridged RFC 1483 DHCP Client Perform the following steps to configure bridged RFC 1483 DHCP client support: Step 1 Step 2 Step 3 Configure the Bridge Group Virtual Interface (BVI) interface by entering the ip address dhcp client-id Ethernet 0 command. Specifying the value client-id ethernet 0 means that the MAC address of the Ethernet interface will be used as the client ID when the DHCP request is sent. Otherwise, the MAC address of the BVI interface is used as the client ID. Configure Network Address Translation (NAT): a. Configure the BVI interface by entering the ip nat outside command. b. Configure the Ethernet interface by entering the ip nat inside command. c. Create an access list under NAT by entering the access-list 1 permit ip address command to match all Ethernet IP addresses. d. Configure the source list under NAT by entering the ip nat inside source list 1 interface BVI 1 overload command. Configure the SOHO router to act as a Dynamic Host Configuration Protocol (DHCP) server. This step is optional. a. At the (config-if)# router prompt, enter the ip dhcp pool server name command. b. Enter the import all command to have the SOHO series router retrieve the Microsoft Windows name server (WINS) and Domain Name System (DNS) server addresses for name resolution. Configuration Example The following example shows a configuration of the DHCP client: bridge irb interface Ethernet0 ip address no ip directed-broadcast ip nat inside interface ATM0 no ip address no ip directed-broadcast 6

7 Configuration Instructions no atm ilmi-keepalive interface ATM0.1 point-to-point no ip directed-broadcast pvc 1/35 encapsulation aal5snap bridge-group 1 interface BVI1 ip address dhcp client-id Ethernet0 no ip directed-broadcast ip nat outside ip route BVI1 access-list 1 permit bridge 1 protocol ieee bridge 1 route ip Configuring a Bridged RFC 1483 Interface with a Static IP Address Perform the following steps to configure the router for bridged RFC 1483 with a static IP address: Step 1 Step 2 Step 3 Configure the BVI interface by entering the ip address static address 0 command. Configure NAT. a. Configure the BVI interface by entering the ip nat outside command. b. Configure the Ethernet interface by entering the ip nat inside command. c. Create an access list under NAT by entering the access-list 1 permit ip address command to match all Ethernet IP addresses. d. Configure the source list under NAT by entering the ip nat inside source list 1 interface BVI 1 overload command. e. Configure the static route command ip route gateway-address, where gateway-address is provided by your service provider. Configure the router to act as a DHCP server. This step is optional. a. At the (config-if)# router prompt, enter the ip dhcp pool server name command. b. Enter the import all command to have the router retrieve the Microsoft Windows name server (WINS) and Domain Name System (DNS) server addresses for name resolution. 7

8 Configuration Instructions Configuration Example The following example shows a bridged RFC 1483 configuration with a static IP address. The default gateway address is provided by your service provider. bridge irb interface Ethernet0 ip address no ip directed-broadcast ip nat inside interface ATM0 no ip address no ip directed-broadcast no atm ilmi-keepalive interface ATM0.1 point-to-point no ip directed-broadcast pvc 1/35 encapsulation aal5snap bridge-group 1 interface BVI1 ip address no ip directed-broadcast ip nat outside ip route access-list 1 permit bridge 1 protocol ieee bridge 1 route ip Configuring PPP over Ethernet This feature supports the PPPoE client on an ATM permanent virtual circuit (PVC). Only one PPPoE client on a single ATM PVC is supported. Figure 1 shows a typical deployment scenario for PPPoE support. Note The PPPoE configuration procedure and example in this section are different from those appearing in previous editions of this release note. The vpdn enable and vpdn group commands have been removed from the procedure and example because they are no longer supported on the SOHO 77 or SOHO 77H routers. 8

9 Configuration Instructions Figure 1 PPPoE Deployment Scenarios LAN E0{827}ATM0 Router DSL modem DSLAM Access concentrator PPPoE session Multiple PCs A PPPoE session is initiated on the client side by the network shown in Figure 1. If the session has a timeout, or if it is disconnected, the PPPoE client immediately attempts to reestablish the session. Follow these steps to configure the router for PPPoE client support: Step 1 Step 2 Configure the ATM interface with PPPoE support: a. Configure the ATM interface by entering the interface atm 0 command. b. Specify the ATM PVC by entering the pvc number command. c. Configure the PPPoE client and specify the dialer interface to use for cloning by entering the pppoe-client dial-pool-number number command. Configure the dialer interface by entering the int dialer number command: a. Configure the IP address as negotiated by entering the ip address negotiated command. b. Configure authentication for your network by entering the ppp authentication protocol command. This step is optional. c. Configure the dialer pool number by entering the dialer pool number command. d. Configure the dialer-group number by entering the dialer-group number command. e. Configure a dialer list for the dialer-group by entering the dialer-list 1 protocol ip permit command. Note Multiple PPPoE clients can run on a different PVCs, in which case, each client has to use a separate dialer interface and a separate dialer pool, and the PPP parameters must be applied on the dialer interface. If you enter the clear pppoe command with a PPPoE client session already established, the PPPoE client session terminates and the PPPoE client immediately tries to reestablish the session. 9

10 Configuration Instructions Configuration Example The following example shows a configuration of a PPPoE client. interface Ethernet0 ip address ip nat inside interface ATM0 no ip address no atm ilmi-keepalive pvc 8/35 pppoe-client dial-pool-number 1 dsl operating-mode auto hold-queue 224 in interface Dialer1 ip address negotiated ip mtu 1492 ip nat outside encapsulation ppp dialer pool 1 dialer-group 1 ppp authentication pap callin ppp pap sent-username sohodyn password 7 141B ip nat inside source list 101 interface Dialer1 overload ip route Dialer1 access-list 101 permit ip any MMI Support The Modem Management Interface (MMI) is software that enables auto-provisioning for the SOHO 76, 77, and 77H routers. The MMI uses a fixed PVC to communicate with the proxy element (PE) that resides on the digital subscriber line access multiplexer (DSLAM). Using MMI, the router updates the running image. Then the router downloads the prescribed configuration using a configuration file or configuration values in a provisioning information database. Configuring MMI for Auto-Provisioning The customer premises equipment (CPE) can be automatically configured by using the Cisco digital subscriber line (DSL) CPE download, but the CPE can be configured only with the image provisioning feature. The following provisioning configuration files are not supported: profiles Cisco DSL CPE Manager (CDCM) objects below the CPE level (that is, the ATM virtual channel connection [VCC] objects) propvirtual objects and interface objects (ATMif and Ethernetif) 10

11 Configuration Instructions Follow these steps to configure the router for MMI support in configure-terminal mode: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 To set the configuration approach for MMI, enter one of the following commands: mmi auto-configure no mmi auto-configure If the auto-configure parameter is enabled, the router is provisioned by the PE. By default, this parameter is enabled. If the auto-configure parameter is disabled, the router is configured by the startup configuration file. To set the polling interval for the router to check the PE for any updated image or configuration files, enter the following command: mmi polling-interval time where time is the number of seconds. The polling-interval range is from 1 to 65535, with the default set to 60 seconds. To set the ATM PVC so the MMI communicates with the PE, enter the following command: mmi pvc vpi/vci where vpi/vci is the virtual path identifier/virtual channel identifier. The default PVC for MMI is 0/16 ilmi, but if it is not available, you must set the specific PVC for the router to communicate with the PE. To set the timer to monitor the image file download, enter the following command in configure terminal mode: mmi snmp-timeout time where time is 1 to 1800 seconds, which is the allowed interval for downloading any two consecutive blocks. If you enter the no mmi snmp-timeout command, the default time is set to 180 seconds. To eliminate the ADSL line training delay, enter the following command: dsl operating-mode auto If the DSLAM is using a Cisco 4xDMT ADI-based card, enter the following command: dsl operating-mode ansi-dmt To set up the debug process for MMI, enter the following command: debug mmi Save the configuration file to NVRAM, and enter the reload command. The router s OK LED on the front panel blinks while the image is being auto-provisioned. The PVC is set up when the reboot occurs. MMI Configuration Example The following example shows an MMI configuration: SOHO-voice1#sh run Building configuration... Current configuration :947 bytes version 12.1 no service single-slot-reload-enable no service pad service timestamps debug uptime 11

12 Configuration Instructions service timestamps log uptime no service password-encryption hostname SOHO-voice1 no logging buffered no logging buffered logging rate-limit console 10 except errors mmi polling-interval 1000 no mmi auto-configure mmi pvc 0/16 debug mmi ip subnet-zero no ip finger interface Ethernet0 no ip address shutdown interface Virtual-Template1 no ip address interface ATM0 no ip address pvc 0/101 bundle-enable dsl operating-mode auto ip classless no ip http server snmp-server manager voice-port 1 voice-port 2 voice-port 3 voice-port 4 > line con 0 transport input none stopbits 1 line vty 0 4 login scheduler max-task-time 5000 end Notes for the DSL Provider To use the Cisco automated configuration solution with SOHO 76, 77 and SOHO 77H CPE, follow these steps: Step 1 Enable the MMI configuration, as described in the Configuring MMI for Auto-Provisioning section on page

13 Obtaining Documentation Step 2 Step 3 Step 4 Step 5 Step 6 Ping from the DSLAM to the CPE to ensure the DSLAM is a PE host. Store the MMI configuration file on an FTP server that acts as the PE s image server. Use CDCM to add the configuration file to the PE s image table. The image file can also be added to the PE. Use CDCM to deploy the CPE. You can manually deploy it, or you can use autodiscovery to deploy multiple CPEs. Use CDCM to provision an image for each CPE, which will associate a specific configuration file to the CPE. Obtaining Documentation The following sections explain how to obtain documentation from Cisco Systems. World Wide Web You can access the most current Cisco documentation on the World Wide Web at the following URL: Translated documentation is available at the following URL: Documentation CD-ROM Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription. Ordering Documentation Cisco documentation is available in the following ways: Registered Cisco Direct Customers can order Cisco product documentation from the Networking Products MarketPlace: Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store: Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at or, elsewhere in North America, by calling NETS (6387). 13

14 Obtaining Technical Assistance Documentation Feedback If you are reading Cisco product documentation on Cisco.com, you can submit technical comments electronically. Click Leave Feedback at the bottom of the Cisco Documentation home page. After you complete the form, print it out and fax it to Cisco at You can your comments to To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address: Cisco Systems Attn: Document Resource Connection 170 West Tasman Drive San Jose, CA We appreciate your comments. Obtaining Technical Assistance Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site. Cisco.com Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world. Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you to Streamline business processes and improve productivity Resolve technical issues with online support Download and test software packages Order Cisco learning materials and merchandise Register for online skill assessment, training, and certification programs You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL: Technical Assistance Center The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center. 14

15 Obtaining Technical Assistance Cisco TAC Web Site Cisco TAC Escalation Center Inquiries to Cisco TAC are categorized according to the urgency of the issue: Priority level 4 (P4) You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration. Priority level 3 (P3) Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue. Priority level 2 (P2) Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available. Priority level 1 (P1) Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available. Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable. The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL: All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register: If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL: If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site. The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case. To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL: Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number. 15

16 Obtaining Technical Assistance This document is to be used in conjunction with the documents listed in the Related Documents section. CCIP, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare, Internet Quotient, iq Breakthrough, iq Expertise, iq FastTrack, the iq Logo, iq Net Readiness Scorecard, Networking Academy, ScriptShare, SMARTnet, TransPath, and Voice LAN are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, Discover All That s Possible, The Fastest Way to Increase Your Internet Quotient, and iquick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack, IOS, IP/TV, LightStream, MGX, MICA, the Networkers logo, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, SlideCast, StrataView Plus, Stratm, SwitchProbe, TeleRouter, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0203R) Copyright 2002, Cisco Systems, Inc. All rights reserved. 16