下列是一台Cisco三层交换机的部分路由表,表中的路由信息完全正确的是

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问题 下列是一台Cisco三层交换机的部分路由表,表中的路由信息完全正确的是

选项 A、Gmeway oflast resort is 162.105.1.145 to network 0.0.0.0
    O    222.29.2.0/24[110/3]via 162.105.1.145,00:13:43,Vlan1
    O    222.29.32.0/24[110/3]via 162.105.1.145,00:13:43,Vlanl
    O*E2    0.0.0.0/0[110/1] via 202.112.41.6,00:15:10,Vlanl
    C    222.105.157.0/24 is directly connected.Vlanl 57
    C    222.1 05.156.0/24 is directly connected.Vlan30
    S    222.105.239.0/25[1/0] via 202.112.41.6
    S    222.105.125.128/26[1/0] via 202.112.7.1
B、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
    O    222.29.2.0/24[110/3] via  62.105.1.145,00:13:43,Vlanl
    O    222.29.32.0/24[110/3] via 162.105.1.145,00:13:43,Vlanl
    O*E2 0.0.0.0/0[110/1] via 162.105.1.145,00:15:10,Vlanl
    C    162.105.157.0/24 is directly connected,Vlanl57
    C    1 62.1 05.1 56.0/24 is directly connected,Vlan30
    S    162.105.239.0/25[1/0] via vlanl57
    S    162.105.125.128/26 [1/0] via vlan1
C、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
    O    222.29.2.0/24[115/3] via 162.105.1.145,00:13:43,Vlanl
    O    222.29.32.0/24 [115/3] via 162.105.1.145,00:13:43,Vlanl
    O*E2 0.0.0.0/0[115/1]via 162.105.1.145,00:15:10,Vlanl
    C    162.105.157.0/24 is directly connected,GigbitEthernet0/1
    C    1 62.1 05.1 56.0/24 is directly connected,GigbitEthemet0/2
    S    162.105.239.0/25 [1/0] via 202.112.41.6
    S    162.105.125.128/26[1/0] via 202.112.7.1
D、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
    O    222.29.2.0/24[110/3] via 162.105.1.145,00:13:43,Vlanl
    O    222.29.32.0/24 [110/3] via 162.105.1.145,00:13:43,Vlanl
    O*E2 0.0.0.0/0 [110/1]via 162.105.1.145,00:15:10,Vlanl
    C    162.105.157.0/24 is directly connected,Vlan157
    C    162.105.156.0/24 is directly connected,Vlan30
    S    162.105.239.0/25[1/0] via 02.1 12.41.6
    S    162.105.125.128/26[1/0] via 202.112.7.1

答案D

解析 在选项A中,在前两条路由中VLAN1的地址是162.105.1.145,而第三条路由中,VLAN1的地址是202.112.41.6。在选项B中最后两条静态路由S 162.105.239.0/25[I/0]via vlan 157;S 162.105.125.128/26[1/0],via vlan1中不能是vlan157和vlan1,应该是vlanl57和vlanl的IP地址,所以选项B错误。在选项C中,两条直连路由C 162.105.157.0/24 is directly connected,GigbitEthemet0/1;C 162.105.156.0/24 is directly connected,GigbitEthemet0/2中,不应该是交换机的电端口,而应该是虚拟端口。所以选项C错误,而选项D正确。
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