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初级工程师
  
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3鸿鹄币
按照实验拓扑,为什么R1的路由表会有32位的路由,(GNS模拟)
R1#sh ip route
Codes: 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
Gateway of last resort is not set
192.168.20.0/24 is variably subnetted, 5 subnets, 2 masks
C 192.168.20.64/27 is directly connected, Loopback1
R 192.168.20.48/32 [120/1] via 192.168.20.34, 00:00:22, Ethernet0/0
R 192.168.20.40/32 [120/1] via 192.168.20.34, 00:00:22, Ethernet0/0 应该合并成27位,谁能解释下?
C 192.168.20.32/27 is directly connected, Ethernet0/0
C 192.168.20.128/27 is directly connected, Loopback0
R1#
R2#sh ip route
Codes: 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
Gateway of last resort is not set
192.168.20.0/29 is subnetted, 5 subnets
R 192.168.20.64 [120/1] via 192.168.20.33, 00:00:12, Ethernet0/0
C 192.168.20.48 is directly connected, Loopback0
C 192.168.20.40 is directly connected, Loopback1
C 192.168.20.32 is directly connected, Ethernet0/0
R 192.168.20.128 [120/1] via 192.168.20.33, 00:00:12, Ethernet0/0
R2#
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