思科ASA防火墙建议:使用思科ASA 8.4实现动态路由协议的全冗余(下)

日期: 2011-04-20 作者:Brandon Carroll翻译:潘天禄 来源:TechTarget中国 英文

在《使用思科ASA 8.4实现动态路由协议的全冗余(上) 》中,我们介绍了使用show failover命令来确认冗余设备之间路由信息的发送。在本文中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 &n……

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在《使用思科ASA 8.4实现动态路由协议的全冗余(上) 》中,我们介绍了使用show failover命令来确认冗余设备之间路由信息的发送。在本文中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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