在路由器上配置Track,实现静态路由器的冗余

1、f0/0 m. 20.0.JM8 fD/QR2 lo2dO.Tij.1在路由器上配置Track，实现静态路由器的冗余一、本文目的静态路由+Track，实现路由的冗余切换二、技术简介静态路由：管理员手工填写，管理距离为1或0（静态路由下一跳 为接口的情况下）Track :追踪技术IP SLA:IP服务等级，通过该技术测试网络连通性三、实验环境模拟器：GNS3路由器：un zip-c3725-adve nterprisek9-m z.124-15.T5.bi n四、网络拓扑lol: IB. 70.1.1fB/1五、环境要求 .在路由器访问对端101接口默认走上面的链路，当上面的链路 出问题时，切换

2、到下面的链路 .在路由器访问对端Io2接口默认走下面的链路，当下面的链路 出问题时，切换到上面的链路六、网络配置R1：track 1 rtr 1 reachability /跟踪路由可靠性track 2 rtr 2 reachabilityinterface Loopback1ip address interface Loopback2ip address 255.255.255.interface FastEthernet0/0ip address 7 52interface Fa

3、stEthernet0/1ip address 9 52ip route 8 track 1 在/ 此路由后 面跟track,如果trackdown 了，此路由失效，因为路由器会选择备份 的路由ip route 0 track 2ip route 0 10 配/ 置管理距离为 10，使该路由作为备份路由，当 track 的主路由失败后，则选择这个

4、路由ip route 8 10ip sla 1 /配置 SLA ，根据 icmp 来判断链路是否可靠icmp-echo 8 source-ip 7ip sla schedule 1 life forever start-time now /配置 schedule是 SLA立即生效，有效期为永远ip sla 2icmp-echo 0 source-interface FastEthernet0/1ip sla schedule 2 life forever start-

5、time nowR2：track 1 rtr 1 reachabilitytrack 2 rtr 2 reachabilityinterface Loopback1ip address interface Loopback2ip address interface FastEthernet0/0ip address 8 52interface FastEthernet0/1ip address 0 52ip ro

6、ute 7 track 1ip route 9 track 2ip route 9 10ip route 7 10ip sla 1icmp-echo 7 source-ip 8ip sla schedule 1 life forever start-time nowip sla 2icm

7、p-echo 9 source-interface FastEthernet0/1ip sla schedule 2 life forever start-time now七、验证R2#sho track briefTrack Object Parameter Value Last Change1 rtr 1 reachability Up 00:00:372 rtr 2 reachability Up 01:10:57R2#sho trackTrack 1Response Time Reporter 1 reachabilityReachability is Up8 ch

8、anges, last change 00:01:58Latest operation return code: OKLatest RTT (millisecs) 32Tracked by:STATIC-IP-ROUTING 0Track 2Response Time Reporter 2 reachabilityReachability is Up8 changes, last change 01:12:18Latest operatio n retur n code: OKLatest RTT (millisecs) 20Tracked by:STATIC-IP-ROUTING 0可以在R

9、1在配置deny ACL测试（具体操作不在表述）,测试结果如下:IIIIIIIIIHIIHIIHIIMIIIIIII1IIIIIIIIIIIIIMIIHIUIIIIIIHIIIIIIIII u *1 I rmi i I I i I I i I I a i ,u i n i i i i 11 i i r i r n i n *in tiiiiiiiRiiiiiiRiiiHi|iiiiiiiiiiiiiiiiiiiiiiiiniiiiiiiiiiiiiriitiiuii HiiiiiMMiiiMiHniiininiiiHiii ! n n a ran u n b% 1 眛粗;IflEl: rnwgTE: 1 rtr 1 readlability 帕血!典出I!11 III I" IIIII Hl IIII II III Hl "I III ill III MINI IIM III II Ul IIF I