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... Getting Started Basic Router Configuration 1 Interface Port Labels 1 Viewing the Default Configuration 2 Information Needed for Configuration 4 Configuring Basic Parameters 5 Configure Global Parameters 5 Configure Fast Ethernet LAN Interfaces 6 Configure WAN Interfaces 6 Configure the Fast Ethernet WAN Interface 6 Configure the ATM WAN Interface 7 Configure the Wireless Interface 7 Configuring a Loopback Interface 8 Configuration Example 8 Verifying Your Configuration 9 Configuring Command-Line Access to the Router 9 Configuration Example 11 Configuring Static Routes 11 Configuration Example...
... Getting Started Basic Router Configuration 1 Interface Port Labels 1 Viewing the Default Configuration 2 Information Needed for Configuration 4 Configuring Basic Parameters 5 Configure Global Parameters 5 Configure Fast Ethernet LAN Interfaces 6 Configure WAN Interfaces 6 Configure the Fast Ethernet WAN Interface 6 Configure the ATM WAN Interface 7 Configure the Wireless Interface 7 Configuring a Loopback Interface 8 Configuration Example 8 Verifying Your Configuration 9 Configuring Command-Line Access to the Router 9 Configuration Example 11 Configuring Static Routes 11 Configuration Example...
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... for using only the CLI. You can use the Cisco Router and Security Device Manager (SDM)-a web-based configuration tool that network administrators with minimal familiarity with Cisco routers use this guide, and the text and command conventions used throughout the guide. Cisco 871 Ethernet Access Router - Note We strongly recommend that allows you want to configure additional advanced software features by using the Cisco Router Web Setup tool, and you to http://www.cisco.com/go to configure LAN and WAN interfaces, routing, Network Address Translation (NAT), firewalls, VPNs...
... for using only the CLI. You can use the Cisco Router and Security Device Manager (SDM)-a web-based configuration tool that network administrators with minimal familiarity with Cisco routers use this guide, and the text and command conventions used throughout the guide. Cisco 871 Ethernet Access Router - Note We strongly recommend that allows you want to configure additional advanced software features by using the Cisco Router Web Setup tool, and you to http://www.cisco.com/go to configure LAN and WAN interfaces, routing, Network Address Translation (NAT), firewalls, VPNs...
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... commands used in Appendix A, "Cisco IOS Basic Skills." For more information on how to access global configuration mode, see the Cisco IOS Release 12.3 documentation set. Note Individual router models may not support every feature described throughout this guide. This chapter contains the following tables, see the "Entering Global Configuration Mode" section in the following sections: • Interface Port Labels • Viewing the Default Configuration • Information Needed for Configuration • Configuring Basic Parameters • Configuring Static Routes...
... commands used in Appendix A, "Cisco IOS Basic Skills." For more information on how to access global configuration mode, see the Cisco IOS Release 12.3 documentation set. Note Individual router models may not support every feature described throughout this guide. This chapter contains the following tables, see the "Entering Global Configuration Mode" section in the following sections: • Interface Port Labels • Viewing the Default Configuration • Information Needed for Configuration • Configuring Basic Parameters • Configuring Static Routes...
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... first boot up your Cisco router, some basic configuration has already been performed. Example 1-1 Cisco 851 Default Configuration on Startup Router# show running -config Building configuration... Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-2 OL-5332-01 All of the LAN and WAN interfaces have been created, console and VTY ports are configured, and the inside interface for Network Address Translation has been assigned. Viewing the Default Configuration Chapter 1 Basic Router Configuration Table 1-1 Supported Interfaces and Associated Port Labels...
... first boot up your Cisco router, some basic configuration has already been performed. Example 1-1 Cisco 851 Default Configuration on Startup Router# show running -config Building configuration... Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-2 OL-5332-01 All of the LAN and WAN interfaces have been created, console and VTY ports are configured, and the inside interface for Network Address Translation has been assigned. Viewing the Default Configuration Chapter 1 Basic Router Configuration Table 1-1 Supported Interfaces and Associated Port Labels...
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..." section. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-4 OL-5332-01 For each PVC determine the type of the following information: - Generate the addressing scheme for your public telephone service provider. For bridged RFC 1483, you may obtain a static IP address from your IP network. - PPP authentication type: Challenge Handshake Authentication Protocol (CHAP) or Password Authentication Protocol (PAP) - Point-to-Point Protocol (PPP) client name that the G.SHDSL line conforms...
..." section. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-4 OL-5332-01 For each PVC determine the type of the following information: - Generate the addressing scheme for your public telephone service provider. For bridged RFC 1483, you may obtain a static IP address from your IP network. - PPP authentication type: Challenge Handshake Authentication Protocol (CHAP) or Password Authentication Protocol (PAP) - Point-to-Point Protocol (PPP) client name that the G.SHDSL line conforms...
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... mode, and returns to privileged EXEC mode. Specifies a unique password for remote console access. Enables password checking at terminal session login. For complete information about the command line commands, see the Cisco IOS Release 12.3 documentation set. 1-10 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide OL-5332-01 Sets the interval that the EXEC command interpreter waits until user input is 10 minutes. Configuring Basic Parameters Chapter 1 Basic Router Configuration Step 3 Command login Example: Router(config)# login Router(config...
... mode, and returns to privileged EXEC mode. Specifies a unique password for remote console access. Enables password checking at terminal session login. For complete information about the command line commands, see the Cisco IOS Release 12.3 documentation set. 1-10 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide OL-5332-01 Sets the interval that the EXEC command interpreter waits until user input is 10 minutes. Configuring Basic Parameters Chapter 1 Basic Router Configuration Step 3 Command login Example: Router(config)# login Router(config...
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...timeout 10 0 password 4youreyesonly login transport input none (default) stopbits 1 (default) line vty 0 4 password secret login ! These commands appear automatically in global configuration mode: Step 1 Command ip route prefix mask {ip-address | interface-type interface-number [ip-address]} Example: Router(config)# ip route 192.168.1.0 255.255.0.0 10.10.10.2 Router(config)# Purpose Specifies the static route for the IP packets. They are redistributed by a routing protocol. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-11 For...
...timeout 10 0 password 4youreyesonly login transport input none (default) stopbits 1 (default) line vty 0 4 password secret login ! These commands appear automatically in global configuration mode: Step 1 Command ip route prefix mask {ip-address | interface-type interface-number [ip-address]} Example: Router(config)# ip route 192.168.1.0 255.255.0.0 10.10.10.2 Router(config)# Purpose Specifies the static route for the IP packets. They are redistributed by a routing protocol. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-11 For...
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...-number Example: Router(config)# router eigrp 109 Router(config)# Purpose Enters router configuration mode, and enables EIGRP on the router. EIGRP, EX - periodic downloaded static route Gateway of last resort is not set 10.0.0.0/24 is subnetted, 1 subnets C 10.108.1.0 is used to see a verification output like the example shown below. OSPF, IA - static, R - Execute the show running-config command from privileged EXEC mode to tag the EIGRP information. 1-14 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide...
...-number Example: Router(config)# router eigrp 109 Router(config)# Purpose Enters router configuration mode, and enables EIGRP on the router. EIGRP, EX - periodic downloaded static route Gateway of last resort is not set 10.0.0.0/24 is subnetted, 1 subnets C 10.108.1.0 is used to see a verification output like the example shown below. OSPF, IA - static, R - Execute the show running-config command from privileged EXEC mode to tag the EIGRP information. 1-14 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide...
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... default, U - connected, S - IS-IS, su - Chapter 1 Basic Router Configuration Configuring Enhanced IGRP Step 2 Command network ip-address Example: Router(config)# network 192.145.1.0 Router(config)# network 10.10.12.115 Router(config)# Step 3 end Example: Router(config-router)# end Router# Purpose Specifies a list of networks on which EIGRP is to the following configuration example shows the EIGRP routing protocol enabled in IP networks 192.145.1.0 and 10.10.12.115. For more general information on EIGRP concepts, see the Cisco IOS Release...
... default, U - connected, S - IS-IS, su - Chapter 1 Basic Router Configuration Configuring Enhanced IGRP Step 2 Command network ip-address Example: Router(config)# network 192.145.1.0 Router(config)# network 10.10.12.115 Router(config)# Step 3 end Example: Router(config-router)# end Router# Purpose Specifies a list of networks on which EIGRP is to the following configuration example shows the EIGRP routing protocol enabled in IP networks 192.145.1.0 and 10.10.12.115. For more general information on EIGRP concepts, see the Cisco IOS Release...
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... to a specific destination subnetwork. Chapter 3 Configuring PPP over Ethernet with it. For details about this command and additional parameters that can be set , see the Cisco IOS IP Command Reference, Volume 2; Step 10 ip route prefix mask {interface-type interface-number} Example: Router(config)# ip route 10.10.25.2 255.255.255.255 dialer 0 Router(config)# Sets the IP route for the default gateway for the dialer 0 interface. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 3-5 Packets...
... to a specific destination subnetwork. Chapter 3 Configuring PPP over Ethernet with it. For details about this command and additional parameters that can be set , see the Cisco IOS IP Command Reference, Volume 2; Step 10 ip route prefix mask {interface-type interface-number} Example: Router(config)# ip route 10.10.25.2 255.255.255.255 dialer 0 Router(config)# Sets the IP route for the default gateway for the dialer 0 interface. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 3-5 Packets...
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... from the router, or both are checked against the access list for possible address translation. Step 4 ip nat {inside | outside Fast Ethernet WAN interface with NAT Configure Network Address Translation Network Address Translation (NAT) translates packets from addresses that enter the router through the inside Router(config-if)# Identifies the specified VLAN interface as information about enabling static translation, see the Cisco IOS IP Command Reference, Volume 1 of 4: Addressing and Services. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 3-6 OL...
... from the router, or both are checked against the access list for possible address translation. Step 4 ip nat {inside | outside Fast Ethernet WAN interface with NAT Configure Network Address Translation Network Address Translation (NAT) translates packets from addresses that enter the router through the inside Router(config-if)# Identifies the specified VLAN interface as information about enabling static translation, see the Cisco IOS IP Command Reference, Volume 1 of 4: Addressing and Services. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 3-6 OL...
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......server-address6] Example: Specifies the address of the user's physical location or LAN connection. Configure DHCP Perform these configurations tasks, see Chapter 1, "Basic Router Configuration," Chapter 3, "Configuring PPP over Ethernet with NAT," and Chapter 4, "Configuring PPP over ATM with NAT" as PPPoE or PPPoA with NAT. Configuration Tasks Perform the following tasks to configure your router. Router(config)# ip name-server 192.168.11.12 Router(config)# Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 5-2 OL-5332-01 Note Whenever you change...
......server-address6] Example: Specifies the address of the user's physical location or LAN connection. Configure DHCP Perform these configurations tasks, see Chapter 1, "Basic Router Configuration," Chapter 3, "Configuring PPP over Ethernet with NAT," and Chapter 4, "Configuring PPP over ATM with NAT" as PPPoE or PPPoA with NAT. Configuration Tasks Perform the following tasks to configure your router. Router(config)# ip name-server 192.168.11.12 Router(config)# Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 5-2 OL-5332-01 Note Whenever you change...
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...-password} Example: Router(config)# username cisco password 0 cisco Router(config)# Establishes a username-based authentication system. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 7-5 During IKE negotiations, the peers search in global configuration mode: Step 1 Command or Action aaa new-model Purpose Enables the AAA access control model. aaa authorization {network | exec | commands Specifies AAA authorization of all level | reverse-access | configuration} {default | network-related service requests, including PPP, list...
...-password} Example: Router(config)# username cisco password 0 cisco Router(config)# Establishes a username-based authentication system. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 7-5 During IKE negotiations, the peers search in global configuration mode: Step 1 Command or Action aaa new-model Purpose Enables the AAA access control model. aaa authorization {network | exec | commands Specifies AAA authorization of all level | reverse-access | configuration} {default | network-related service requests, including PPP, list...
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... a Wireless LAN Connection The Cisco 850 and Cisco 870 series routers support a secure, affordable, and easy-to-use wireless LAN solution that combines mobility and flexibility with multiple networked devices) 2 Cisco 850 or Cisco 870 series access router connected to the Internet 3 VLAN 1 4 VLAN 2 In the configuration example that follows, a remote user is accessing the Cisco 850 or Cisco 870 series access router using a wireless connection. Use the interface dot11radio global configuration CLI command to place the device into radio configuration mode. See the Cisco Access Router Wireless...
... a Wireless LAN Connection The Cisco 850 and Cisco 870 series routers support a secure, affordable, and easy-to-use wireless LAN solution that combines mobility and flexibility with multiple networked devices) 2 Cisco 850 or Cisco 870 series access router connected to the Internet 3 VLAN 1 4 VLAN 2 In the configuration example that follows, a remote user is accessing the Cisco 850 or Cisco 870 series access router using a wireless connection. Use the interface dot11radio global configuration CLI command to place the device into radio configuration mode. See the Cisco Access Router Wireless...
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...Dial Backup and Remote Management Through the Console or Auxiliary Port Figure 13-1 shows the network configuration used for remote management access and for these steps to configure dial backup and remote management for providing backup to Internet service provider series router 2 Modem B Dial backup; serves as a failover link for Cisco 870 routers when primary line goes down 3 PC C Remote management; serves as dial-in DHCP pool configuration mode, see the "Configuration Example" section on the router and enters DHCP pool configuration mode. Creates a DHCP address pool...
...Dial Backup and Remote Management Through the Console or Auxiliary Port Figure 13-1 shows the network configuration used for remote management access and for these steps to configure dial backup and remote management for providing backup to Internet service provider series router 2 Modem B Dial backup; serves as a failover link for Cisco 870 routers when primary line goes down 3 PC C Remote management; serves as dial-in DHCP pool configuration mode, see the "Configuration Example" section on the router and enters DHCP pool configuration mode. Creates a DHCP address pool...
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... adversely affected. debug atm errors Command Use the debug atm errors command to troubleshoot configuration problems that other activity on your network. ATM Troubleshooting Commands Chapter 14 Troubleshooting Table 14-2 show atm interface Command Output Description (continued) Field Maximum Transmit Channels Max Datagram Size PLIM Type Description Maximum number of bytes in the largest datagram. Example 14-4 Viewing ATM Errors Router# debug atm errors ATM errors debugging is during a Telnet session on Router# 01:32:02...
... adversely affected. debug atm errors Command Use the debug atm errors command to troubleshoot configuration problems that other activity on your network. ATM Troubleshooting Commands Chapter 14 Troubleshooting Table 14-2 show atm interface Command Output Description (continued) Field Maximum Transmit Channels Max Datagram Size PLIM Type Description Maximum number of bytes in the largest datagram. Example 14-4 Viewing ATM Errors Router# debug atm errors ATM errors debugging is during a Telnet session on Router# 01:32:02...
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...; Change terminal settings. • Perform basic tests. • Display system information. • To exit to privileged subinterfaces. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide A-3 Appendix A Cisco IOS Software Basic Skills Understanding Command Modes Table A-2 Command Modes Summary Mode User EXEC Access Method Begin a session with the interface command. Also, you can access the following • To enter interface modes, which are described later in this mode for these tasks: mode, enter the disable...
...; Change terminal settings. • Perform basic tests. • Display system information. • To exit to privileged subinterfaces. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide A-3 Appendix A Cisco IOS Software Basic Skills Understanding Command Modes Table A-2 Command Modes Summary Mode User EXEC Access Method Begin a session with the interface command. Also, you can access the following • To enter interface modes, which are described later in this mode for these tasks: mode, enter the disable...
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...; Routing Protocol Options • PPP Authentication Protocols • TACACS+ • Network Interfaces • Dial Backup • NAT • Easy IP (Phase 1) • Easy IP (Phase 2) • QoS • Access Lists ADSL is always on and always connected, increasing bandwidth and lowering the costs compared with always-on access (which eliminates call setup), makes ADSL ideal for Internet and intranet surfing, video on demand, and remote LAN access. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide...
...; Routing Protocol Options • PPP Authentication Protocols • TACACS+ • Network Interfaces • Dial Backup • NAT • Easy IP (Phase 1) • Easy IP (Phase 2) • QoS • Access Lists ADSL is always on and always connected, increasing bandwidth and lowering the costs compared with always-on access (which eliminates call setup), makes ADSL ideal for Internet and intranet surfing, video on demand, and remote LAN access. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide...
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... Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide C-1 Step 1 Command enable Step 2 Step 3 configure terminal config-reg 0x0 Purpose Enters privileged EXEC mode. Perform these steps to configure the router to the router over the console port. Enters global configuration mode. Resets the configuration register. ROM Monitor C A P P E N D I X The ROM monitor firmware runs when the router is rebooted. You can use the ROM monitor, you must be using a terminal or PC that is no Cisco IOS software image loaded...
... Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide C-1 Step 1 Command enable Step 2 Step 3 configure terminal config-reg 0x0 Purpose Enters privileged EXEC mode. Perform these steps to configure the router to the router over the console port. Enters global configuration mode. Resets the configuration register. ROM Monitor C A P P E N D I X The ROM monitor firmware runs when the router is rebooted. You can use the ROM monitor, you must be using a terminal or PC that is no Cisco IOS software image loaded...
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...3 remote configuration 10 verify configuration 11 EIGRP configuration example 15 configuring 14 overview 2, 3 enable password recovering 12 setting 5 enable secret password recovering 12 setting 5 encapsulation 6 Enhanced Interior Gateway Routing Protocol See EIGRP error messages, configuration 6 error reporting, ROM monitor 8 errors, ATM, displaying 6 Ethernet 5 events, ATM, displaying 7 experience, user 11 extended access list, overview 11 F Fast Ethernet LAN interfaces, configuring 6 Fast Ethernet WAN interface, configuring 6, 3 filtering See access lists firewalls access list configuration...
...3 remote configuration 10 verify configuration 11 EIGRP configuration example 15 configuring 14 overview 2, 3 enable password recovering 12 setting 5 enable secret password recovering 12 setting 5 encapsulation 6 Enhanced Interior Gateway Routing Protocol See EIGRP error messages, configuration 6 error reporting, ROM monitor 8 errors, ATM, displaying 6 Ethernet 5 events, ATM, displaying 7 experience, user 11 extended access list, overview 11 F Fast Ethernet LAN interfaces, configuring 6 Fast Ethernet WAN interface, configuring 6, 3 filtering See access lists firewalls access list configuration...
