【正文】 configif)interface s0/1/1 R3(configif)ip address R3(configif)clock rate 128000 R3(configif)no shutdown R3(config)interface s0/3/0 R3(configif)ip address R3(configif)clock rate 128000 R3(configif)no shutdown R3(config)ip route s0/1/0 R3(config)ip route s0/1/0 R3(config)ip route s0/1/0 R3(config)ip route s0/1/0 R3(config)ip route s0/1/0 R3(config)ip route s0/1/ R3(config)ip route s0/3/0 R3(config)ip route s0/3/0 R3(config)ip route s0/3/0 R3(config)ip route s0/3/0 R3(config)ip route s0/3/0 R3(config)ip route s0/3/0 R3(config)exit R4 Routeren Routerconf ter Router(config)hostname R4 R4(config)interface s0/1/0 R4(configif)ip address R4(configif)no shutdown R4(configif)interface f0/0 R4(configif)ip address R4(configif)no shutdown R4(config)router eigrp 1 R4(configrouter)no autosummary R4(configrouter)work R4(configrouter)work R4(configrouter)exit R5 Routeren Routerconf ter Router(config)hostname R5 R5(config)interface s0/3/1 R5(configif)ip address R5(configif)no shutdown R5(configif)interface f0/0 R5(configif)ip address R5(configif)no shutdown R5(config)router eigrp 1 R5(configrouter)no autosummary R5(configrouter)work R5(configrouter)work R5(configrouter)exit R6 Routeren Routerconf ter Router(config)hostname R6 R6(config)interface s0/1/1 R6(configif)ip address R6(configif)no shutdown R6(configif)interface f0/0 R6(configif)ip address R6(configif)no shutdown R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)ip route s0/1/1 R6(config)exit R7 Routeren Routerconf ter Router(config)hostname R7 R7(config)interface s0/1/0 R7(configif)ip address R7(configif)no shutdown R7(config)interface s0/1/1 R7(configif)ip address R7(configif)clock rate 128000 R7(configif)no shutdown R7(configif)exit R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)exit R7(config)router eigrp 1 R7(configrouter)no autosummary R7(configrouter)redistribute static R7(configrouter)work R7(configrouter)exit R8 Routeren Routerconf ter s0/1/0(config)hostname R8 R8(config)interface s0/1/0 R8(configif)ip address R8(configif)no shutdown R8(configif)interface f0/0 R8(configif)ip address R8(configif)no shutdown R8(config)interface s0/1/1 R8(configif)ip address R8(configif)no shutdown R8(config)router eigrp 1 R8(configrouter)no autosummary R8(configrouter)work R8(configrouter)work R8(configrouter)work R8(configrouter)exit R9 Routeren Routerconf ter Router(config)hostname R9 R9(config)interface s0/1/0 R9(configif)ip address R9(configif)no shutdown R9(configif)interface f R9(configif)interface f0/0 R9(configif)ip address R9(configif)no shutdown R9(config)interface s0/1/1 R9(configif)ip address R9(configif)clock rate 128000 R9(configif)no shutdown R9(config)router eigrp 1 R9(configrouter)no autosummary R9(configrouter)work R9(configrouter)work R9(configrouter)work R9(configrouter)work R9(configrouter)exit R10 Routeren Routerconf ter Router(config)hostname R10 R10(config)interface f0/0 R10(configif)ip address R10(configif)no shutdown R10(config)interface s0/1/1 R10(configif)ip address R10(configif)no shutdown R10(config)router eigrp 1 R10(configrouter)no autosummary R10(configrouter)work R10(configrouter)exit S1 Switchen Switchconf ter Switch(config)hostname S1 S1(config)interface vlan1 S1(configif)ip address S1(configif)no shutdown S2 Switchen Switchconf ter Switch(config)hostname S2 S2(config)interface vlan1 S2(configif)ip address S2(configif)no shutdown S3 Switchen Switchconf ter Switch(config)hostname S3 S3(config)interface vlan1 S3(configif)ip address S3(configif)no shutdown MS1 Switchen Switchconf ter Switch(config)hostname MS1 MS1(config)interface f0/1 MS1(configif)switchport trunk encapsulation dot1q MS1(configif)switchport mode trunk MS1(configif)switchport trunk allo