那如果想要查看路由表的序列号，以及增加的路由信息应该用什么样的命令呢?
　　下面我们将介绍通过其他命令查看路由表的序列号，以及增加的路由等。
　　如果我们使用show route failover命令，我们可以看到路由表的序列号。
　　ciscoasa(config)# show route failover
　　Codes: C - connected, S - static, I - IGRP, 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, E - EGP
　　i - IS-IS, 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 10.104.54.129 to network 0.0.0.0
　　Routing table seq num 5
　　Reconvergence timer expired
　　D    20.20.210.0 255.255.255.0  [90/28416] via 192.101.1.30, 0:13:14, outside, seq 5
　　D    20.20.249.0 255.255.255.0  [90/30976] via 192.101.1.30, 0:13:14, outside, seq 5
　　D    20.20.250.0 255.255.255.0  [90/33536] via 192.101.1.30, 0:13:14, outside, seq 5
　　O IA 172.198.40.0 255.255.255.0  [110/30] via 192.168.32.2, 0:12:37, inside, seq 5
　　O IA 172.168.34.0 255.255.255.0  [110/20] via 192.168.32.2, 0:12:37, inside, seq 5
　　O IA 172.188.36.0 255.255.255.0  [110/30] via 192.168.32.2, 0:12:37, inside, seq 5
　　O IA 172.16.30.0 255.255.255.0    [110/20] via 192.168.32.2, 0:12:40, inside, seq 5
　　C    10.104.54.0 255.255.255.0 is directly connected, mgmt, seq 4
　　C    192.101.1.0 255.255.255.0 is directly connected, outside, seq 5
　　C    192.168.253.0 255.255.255.0 is directly connected, failover, seq 0
　　C    192.168.32.0 255.255.255.0 is directly connected, inside, seq 5
　　S*   0.0.0.0 0.0.0.0 [1/0] via 10.104.54.129, mgmt, seq 5
　　如果我们使用debug route ha命令，我们将看到下面增加的路由：
　　ROUTE HA: RIB Epoch number 5 assigned to NDB: 192.168.32.0
　　ROUTE HA: Sending Message Version: 1 Action: add Object: route Address: 192.168.32.0 Mask: 255.255.255.0
　　ROUTE HA: RIB Epoch number 5 assigned to NDB: 172.16.0.0
　　ROUTE HA: Sending Message Version: 1 Action: add Object: route Address: 172.16.30.0 Mask: 255.255.255.0
　　ROUTE HA: RIB epoch number 5 assigned to SDB: 172.16.30.0
　　ROUTE HA: RIB Epoch number 5 assigned to NDB: 172.168.0.0
　　ROUTE HA: Sending Message Version: 1 Action: add Object: route Address: 172.168.34.0 Mask: 255.255.255.0
　　ROUTE HA: RIB epoch number 5 assigned to SDB: 172.168.34.0
　　ROUTE HA: RIB Epoch number 5 assigned to NDB: 172.188.0.0
　　ROUTE HA: Sending Message Version: 1 Action: add Object: route Address: 172.188.36.0 Mask: 255.255.255.0
　　ROUTE HA: RIB epoch number 5 assigned to SDB: 172.188.36.0
　　ROUTE HA: RIB Epoch number 5 assigned to NDB: 172.198.0.0
　　ROUTE HA: Sending Message Version: 1 Action: add Object: route Address: 172.198.40.0 Mask: 255.255.255.0
　　ROUTE HA: RIB epoch number 5 assigned to SDB: 172.198.40.0
　　该功能在ASA上早已开启，所以你只需要在ASA上设置冗余和路由就可以了。

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