Configuration Guide
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... Router • Cisco 870 Series Routers - Cisco 871 Ethernet Access Router - Cisco 851 Ethernet Access Router - The preface includes the following topics: • Audience • Organization • Conventions • Related Documents • Obtaining Documentation and Submitting a Service Request Audience This guide is intended for using only the CLI. Note We strongly recommend that network administrators with minimal familiarity with Cisco routers...
... Router • Cisco 870 Series Routers - Cisco 871 Ethernet Access Router - Cisco 851 Ethernet Access Router - The preface includes the following topics: • Audience • Organization • Conventions • Related Documents • Obtaining Documentation and Submitting a Service Request Audience This guide is intended for using only the CLI. Note We strongly recommend that network administrators with minimal familiarity with Cisco routers...
Configuration Guide
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.... For more information on the commands used in Appendix A, "Cisco IOS Basic Skills." Table 1-1 Supported Interfaces and Associated Port Labels by a particular router are indicated whenever possible. Note Individual router models may not support every feature described throughout this guide. Features not supported by Cisco Router Router Cisco 851 Interface Fast Ethernet LAN Fast Ethernet WAN Wireless LAN...
.... For more information on the commands used in Appendix A, "Cisco IOS Basic Skills." Table 1-1 Supported Interfaces and Associated Port Labels by a particular router are indicated whenever possible. Note Individual router models may not support every feature described throughout this guide. Features not supported by Cisco Router Router Cisco 851 Interface Fast Ethernet LAN Fast Ethernet WAN Wireless LAN...
Configuration Guide
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... LEFT, RIGHT/PRIMARY 1-0 LAN (top), FE0-FE3 (bottom) ADSLoPOTS (no service password-encryption ! Current configuration : 1090 bytes ! Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-2 OL-5332-01 boot-start-marker boot-end-marker ! Example 1-1 Cisco 851 Default Configuration on Startup Router# show running -config Building configuration... Use the show running -config command...
... LEFT, RIGHT/PRIMARY 1-0 LAN (top), FE0-FE3 (bottom) ADSLoPOTS (no service password-encryption ! Current configuration : 1090 bytes ! Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 1-2 OL-5332-01 boot-start-marker boot-end-marker ! Example 1-1 Cisco 851 Default Configuration on Startup Router# show running -config Building configuration... Use the show running -config command...
Configuration Guide
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... , configure the WAN interface(s) using one Fast Ethernet interface for the Fast Ethernet interface and returns to the Cisco 851 and Cisco 871 router models. Sets the IP address and subnet mask for WAN connection. Enables the Ethernet interface, changing its state ...ATM WAN Interface Configure the Fast Ethernet WAN Interface This procedure applies only to global configuration mode. Configure WAN Interfaces The Cisco 851 and Cisco 871 routers each have one ATM interface for the specified Fast Ethernet interface. You may assign the interfaces to administratively up. Perform these...
... , configure the WAN interface(s) using one Fast Ethernet interface for the Fast Ethernet interface and returns to the Cisco 851 and Cisco 871 router models. Sets the IP address and subnet mask for WAN connection. Enables the Ethernet interface, changing its state ...ATM WAN Interface Configure the Fast Ethernet WAN Interface This procedure applies only to global configuration mode. Configure WAN Interfaces The Cisco 851 and Cisco 871 routers each have one ATM interface for the specified Fast Ethernet interface. You may assign the interfaces to administratively up. Perform these...
Configuration Guide
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... -step procedure that shows the results of the configuration. The Cisco 851 and Cisco 871 router models can be used in the Ethernet-based scenarios and the Cisco 857, Cisco 876, Cisco 877, and Cisco 878 router models can add or substitute features that a specific feature is ... and VLANs" • Chapter 6, "Configuring a VPN Using Easy VPN and an IPSec Tunnel" OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 2-1 For Ethernet-Based Network Deployments Use the following configuration examples to implement the network configuration, and ...
... -step procedure that shows the results of the configuration. The Cisco 851 and Cisco 871 router models can be used in the Ethernet-based scenarios and the Cisco 857, Cisco 876, Cisco 877, and Cisco 878 router models can add or substitute features that a specific feature is ... and VLANs" • Chapter 6, "Configuring a VPN Using Easy VPN and an IPSec Tunnel" OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 2-1 For Ethernet-Based Network Deployments Use the following configuration examples to implement the network configuration, and ...
Configuration Guide
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...2 5 1 Multiple networked devices-Desktops, laptop PCs, switches 2 Fast Ethernet LAN interface (inside in3terface for NAT) 6 3 PPPoE client-Cisco 851 or Cisco 871 access router 4 Point at which NAT occurs 7 5 Fast Ethernet WAN interface (outside interface for NAT) 121753 6 Cable modem or other server (for example... and so forth. CH A P T E R 3 Configuring PPP over Ethernet with NAT The Cisco 851 and Cisco 871access routers support Point-to the LAN behind the router. Multiple PCs can be connected to -Point Protocol over Ethernet (PPPoE) clients and network address translation...
...2 5 1 Multiple networked devices-Desktops, laptop PCs, switches 2 Fast Ethernet LAN interface (inside in3terface for NAT) 6 3 PPPoE client-Cisco 851 or Cisco 871 access router 4 Point at which NAT occurs 7 5 Fast Ethernet WAN interface (outside interface for NAT) 121753 6 Cable modem or other server (for example... and so forth. CH A P T E R 3 Configuring PPP over Ethernet with NAT The Cisco 851 and Cisco 871access routers support Point-to the LAN behind the router. Multiple PCs can be connected to -Point Protocol over Ethernet (PPPoE) clients and network address translation...
Configuration Guide
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... devices-Desktops, laptop PCs, switches 2 Fast Ethernet LAN interface (the inside interface for NAT) 3 PPPoE or PPPoA client and firewall implementation-Cisco 851/871 or Cisco 857/876/877/878 series access router, respectively 4 Point at which NAT occurs 5 Protected network 6 Unprotected network 7 Fast Ethernet or ATM WAN interface (the outside WAN interface (FE4...
... devices-Desktops, laptop PCs, switches 2 Fast Ethernet LAN interface (the inside interface for NAT) 3 PPPoE or PPPoA client and firewall implementation-Cisco 851/871 or Cisco 857/876/877/878 series access router, respectively 4 Point at which NAT occurs 5 Protected network 6 Unprotected network 7 Fast Ethernet or ATM WAN interface (the outside WAN interface (FE4...
Configuration Guide
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... configuration or troubleshooting needs. See the appropriate Cisco IOS configuration guides and command references for the Cisco 850 series routers (Cisco 851 and Cisco 857) and Cisco 870 series routers (Cisco 871, Cisco 876, Cisco 877, and Cisco 878). You can use the Software Advisor tool. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 11-1 The configuration options...
... configuration or troubleshooting needs. See the appropriate Cisco IOS configuration guides and command references for the Cisco 850 series routers (Cisco 851 and Cisco 857) and Cisco 870 series routers (Cisco 871, Cisco 876, Cisco 877, and Cisco 878). You can use the Software Advisor tool. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 11-1 The configuration options...
Configuration Guide
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...to the watch feature running. The router must be supported. Table 13-1 summarizes dial backup support and limitations for the dial backup feature: • Bridging is not supported over console or auxiliary port backup interfaces. • For the Cisco 851 router, only dial-in capability is supported.... • Dial backup support on the Cisco 871 router is limited because the Ethernet WAN interface is always up, even when ISP connectivity is ...
...to the watch feature running. The router must be supported. Table 13-1 summarizes dial backup support and limitations for the dial backup feature: • Bridging is not supported over console or auxiliary port backup interfaces. • For the Cisco 851 router, only dial-in capability is supported.... • Dial backup support on the Cisco 871 router is limited because the Ethernet WAN interface is always up, even when ISP connectivity is ...