试验拓扑
装备R1
Router(config)#hostname R1
# 装备e0/0接口地址
R1(config)#interface e0/0
R1(config-if)#ip address 192.168.12.1 255.255.255.0
R1(config-if)#no shutdown
# 装备e0/1 接口地址
R1(config-if)#interface e0/1
R1(config-if)#ip address 192.168.1.254 255.255.255.0
R1(config-if)#no shutdown
# 添加其他网段路由
R1(config)#ip route 192.168.23.0 255.255.255.0 192.168.12.2
R1(config)#ip route 192.168.3.0 255.255.255.0 192.168.12.2
检查接口ip
R1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.12.1 YES manual up up
Ethernet0/1 192.168.1.254 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
Serial1/0 unassigned YES unset administratively down down
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
检查R1路由表
R1#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
- replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, Ethernet0/1
L 192.168.1.254/32 is directly connected, Ethernet0/1
S 192.168.3.0/24 [1/0] via 192.168.12.2
192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.12.0/24 is directly connected, Ethernet0/0
L 192.168.12.1/32 is directly connected, Ethernet0/0
S 192.168.23.0/24 [1/0] via 192.168.12.2
装备R2
# 修正主机名
Router>enable
Router#configure terminal
Router(config)#hostname R2
# 装备e0/0接口地址
R2(config)#interface e0/0
R2(config-if)#ip address 192.168.12.2 255.255.255.0
R2(config-if)#no shutdown
# 装备e0/1接口地址
R2(config-if)#interface e0/1
R2(config-if)#ip address 192.168.23.2 255.255.255.0
R2(config-if)#no shutdown
# 添加到其他网段路由
R2(config)#ip route 192.168.1.0 255.255.255.0 192.168.12.1
R2(config)#ip route 192.168.3.0 255.255.255.0 192.168.23.3
检查接口ip
R2#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.12.2 YES manual up up
Ethernet0/1 192.168.23.2 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
Serial1/0 unassigned YES unset administratively down down
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
检查路由
R2#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
- replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
S 192.168.1.0/24 [1/0] via 192.168.12.1
S 192.168.3.0/24 [1/0] via 192.168.23.3
192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.12.0/24 is directly connected, Ethernet0/0
L 192.168.12.2/32 is directly connected, Ethernet0/0
192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.23.0/24 is directly connected, Ethernet0/1
L 192.168.23.2/32 is directly connected, Ethernet0/1
装备R3
Router>enable
Router#configure terminal
Router(config)#hostname R3
R3(config)#
R3(config)#interface e0/0
R3(config-if)#ip address 192.168.23.3 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#interface e0/1
R3(config-if)#ip address 192.168.3.254 255.255.255.0
R3(config-if)#no shutdown
R3(config)#ip route 192.168.1.0 255.255.255.0 192.168.23.2
R3(config)#ip route 192.168.12.0 255.255.255.0 192.168.23.2
检查接口ip
R3#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.23.3 YES manual up up
Ethernet0/1 192.168.3.254 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
Serial1/0 unassigned YES unset administratively down down
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
检查路由
R3#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
- replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
S 192.168.1.0/24 [1/0] via 192.168.23.2
192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.3.0/24 is directly connected, Ethernet0/1
L 192.168.3.254/32 is directly connected, Ethernet0/1
S 192.168.12.0/24 [1/0] via 192.168.23.2
192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.23.0/24 is directly connected, Ethernet0/0
L 192.168.23.3/32 is directly connected, Ethernet0/0
装备vpc4
VPCS> ip 192.168.1.2/24 192.168.1.254
Checking for duplicate address...
VPCS : 192.168.1.2 255.255.255.0 gateway 192.168.1.254
装备vpc5
VPCS> ip 192.168.3.2/24 192.168.3.254
Checking for duplicate address...
VPCS : 192.168.3.2 255.255.255.0 gateway 192.168.3.254
在vpc4上ping vpc5测验连通性
VPCS> ping 192.168.3.2
84 bytes from 192.168.3.2 icmp_seq=1 ttl=61 time=0.958 ms
84 bytes from 192.168.3.2 icmp_seq=2 ttl=61 time=0.785 ms
84 bytes from 192.168.3.2 icmp_seq=3 ttl=61 time=1.050 ms
84 bytes from 192.168.3.2 icmp_seq=4 ttl=61 time=0.823 ms
84 bytes from 192.168.3.2 icmp_seq=5 ttl=61 time=0.827 ms
