实例:华为和思科路由器的互联配置

Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Cisco        //定义路由器主机名
!
enable secret 5 $QB$O1nBb A1olUQ JU1JQRUxNe$oHa0  //enable密码
!
no ip domain-lookup
!
interface Loopback0
ip address 192.168.0.1 255.255.255.0  　  //定义Loopback地址，也可以不定义
!
interface Ethernet1/0
description zhongxin
ip address 172.16.1.1 255.255.255.0
!
interface Serial2/0
description connect to Huawei 
encapsulation ppp                     　 　//缺省的封装是HDLC
ip address 192.168.1.1 255.255.255.252 
!
router ospf 10
network 172.16.1.0 0.0.0.255 area 0        //定义area 0
network 192.168.1.0 0.0.0.3 area 0         //定义area 0
network 192.168.0.0 0.0.0.255 area 0   //如果没有定义Loopback地址，或者不
希望//Loopback地址可OSPF路由，可以不需要
!
ip classless
no ip http server
!
line con 0
transport input none
line aux 0
line vty 0 4
password 7 00450CB01A564A 1A0B      //telnet密码，加密显示
login
!
end