一、实验设备
     
     1、PIX515E-UR两台,软件版本:6.3
     
     2、交换机两台
     
     二、拓扑图
     
     
   [img]http://cisco.chinaitlab.com/imgfiles/2005.7.6.9.44.42.1.jpg[/img]
   三、配置
     
     部分配置省略:
     
     PIX Version 6.3(3)
     interface ethernet0 100full
     interface ethernet1 100full
     nameif ethernet0 outs security0
     nameif ethernet1 inside security100
     ip address outs 192.168.18.201 255.255.255.0
     ip address inside 1.1.1.1 255.255.255.0
     failover
     failover ip address outs 192.168.18.202
     failover ip address inside 1.1.1.2
     failover link inside
     global (outs) 1 interface
     nat (inside) 1 0.0.0.0 0.0.0.0 0 0
     route outs 0.0.0.0 0.0.0.0 192.168.18.1 1
     telnet 0.0.0.0 0.0.0.0 inside
     
     
     sho failover信息:在secondary PIX
     
     开始时是primary PIX为active状态,secondary PIX 为standby状态。
     
     pixfirewall# sho fail
     Failover On
     Cable status: Normal
     Reconnect timeout 0:00:00
     Poll frequency 15 seconds
     Last Failover at: 00:49:39 UTC Fri Jan 1 1993
     This host: Secondary - Standby
     Active time: 0 (sec)
     Interface outs (192.168.18.202): Normal
     Interface inside (1.1.1.2): Normal
     Other host: Primary - Active
     Active time: 1845 (sec)
     Interface outs (192.168.18.201): Normal
     Interface inside (1.1.1.1): Normal
     
     Stateful Failover Logical Update Statistics
     Link : inside
     Stateful Obj xmit xerr rcv rerr
     General 117 0 137 0
     sys cmd 117 0 117 0
     up time 0 0 0 0
     xlate 0 0 4 0
     tcp conn 0 0 16 0
     udp conn 0 0 0 0
     ARP tbl 0 0 0 0
     RIP Tbl 0 0 0 0
     
     Logical Update Queue Information
     Cur Max Total
     Recv Q: 0 1 133
     Xmit Q: 0 1 117
     
     经过15秒多状态切换过来!
     
     是primary PIX为standby状态,secondary PIX 为active状态。
     
     pixfirewall# sho fail
     Failover On
     Cable status: Normal
     Reconnect timeout 0:00:00
     Poll frequency 15 seconds
     Last Failover at: 01:32:20 UTC Fri Jan 1 1993
     This host: Secondary - Active
     Active time: 15 (sec)
     Interface outs (192.168.18.201): Normal (Waiting)
     Interface inside (1.1.1.1): Normal (Waiting)
     Other host: Primary - Standby
     Active time: 2580 (sec)
     Interface outs (192.168.18.202): Normal
     Interface inside (1.1.1.2): Link Down (Waiting)
     
     Stateful Failover Logical Update Statistics
     Link : inside
     Stateful Obj xmit xerr rcv rerr
     General 212 0 230 0
     sys cmd 212 0 210 0
     up time 0 0 0 0
     xlate 0 0 4 0
     tcp conn 0 0 16 0
     udp conn 0 0 0 0
     ARP tbl 0 0 0 0
     RIP Tbl 0 0 0 0
     
     Logical Update Queue Information
     Cur Max Total
     Recv Q: 0 1 226
     Xmit Q: 0 1 212
     
     注:1、在应用层IE浏览器几乎察觉不到切换。
     
     2、实验参考:Cisco PIX Firewall and VPN Configuration Guide, Version 6.3中的Using PIX Firewall Failover部分。