Cisco Systems 78-11741-02 manual Variable-Length Subnet Mask Example, Specified, IPC-379

Configuring IP Routing Protocol-Independent Features

IP Routing Protocol-Independent Configuration Examples

Command		Purpose
Router#	show key chain [name-of-chain]	Displays authentication key information.
Router#	show route-map [map-name]	Displays all route maps configured or only the one
		specified.

IP Routing Protocol-Independent Configuration Examples

The following sections provide routing protocol-independent configuration examples:

•Variable-Length Subnet Mask Example

•Overriding Static Routes with Dynamic Protocols Example

•Administrative Distance Examples

•Static Routing Redistribution Example

•IGRP Redistribution Example

•RIP and IGRP Redistribution Example

•EIGRP Redistribution Examples

•RIP and EIGRP Redistribution Examples

•OSPF Routing and Route Redistribution Examples

•Default Metric Values Redistribution Example

•Policy Routing (Route Map) Examples

•Passive Interface Examples

•Policy Routing Example

•Key Management Examples

Variable-Length Subnet Mask Example

In the following example, a 14-bit subnet mask is used, leaving two bits of address space reserved for serial line host addresses. There is sufficient host address space for two host endpoints on a point-to-point serial link.

interface ethernet 0

ip address 172.17.1.1 255.255.255.0

! 8 bits of host address space reserved for ethernets

interface serial 0

ip address 172.17.254.1 255.255.255.252

!2 bits of address space reserved for serial lines

!Router is configured for OSPF and assigned AS 1 router ospf 1

!Specifies the network directly connected to the router network 172.17.0.0 0.0.255.255 area 0.0.0.0

Cisco IOS IP Configuration Guide

IPC-379