第1段：R1路由器配置清單 R1#sh runn Building configuration...
Current configuratptime service timestamps log uptime no service passWord-encryption ! hostname R1 ! ip subnet-zero ! interface Loopback0 ip address 192.1.1.1255.255.255.0 ! interface Serial 1 bandwidth 2000 ip address 201.1.13.1 255.255.255.252 clockrate 2000000 ! router eigrp 200 network 192.1.1.0 network 201.1.13.0 0.0.0.3 no auto-summary no eigrp Sog-neighbor-chailges ! ip classless ip http server ! line con 0 line aux 0 line vty 0 4 password cisco login ! end R1# 第2段：R2路由器配置清單 R2#sh run Building configuration...
Current configuration : 733 bytes ! version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname R2 ! no logging console ip subnet-zero no ip finger! ! interface Loopback0 ip address 192.1.2.2 255.255.255.0 ! interface Ethemet0 ip address 200.1.1.2 255.255.255.0 ! interface Serial0 bandwidth 2000 ip address 201.1.23.1 255.255.255.252 ! router eigrp 200 network 192.1.2.0 network 200.1.1.0 network 201.1.23.0 0.0.0.3 no auto-summary no eigrp log-neighbor-changes ! ip classless ip http server ! line con 0 line aux 0 line vty 0 4 ! end R2# 第3段：R3路由器配置清單 R3#sh runn Building configuration... Current configuration : 744 bytes ! version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname R3 ! ip subnet-zero no ip finger ! interface Ethemet0 ip address 200.1.1.3 255.255.255.0 ! interface Serial0 bandwidth 2000 ip address 201.1.23.2 255.255.255.252 no fair-queue clockrate 2000000 ! interface Serial 1 bandwidth 2000 ip address 201.1.13.2 255.255.255.252 ! router eigrp 200 network 200.1.1.0 network 201.1.13.0 0.0.0.3 network 201.1.23.0 0.0.0.3 no auto-summary no eigrp log-neighbor-changes ! ip classless ip http server ! line con 0 line aux 0 line vty 04 ! end 對于上述配置，沒有太多需要說明的，請讀者注重串行接口配置和網絡聲明語句兩處輕易出現錯誤的部分。
