[BSCI]配置ISIS Area区域认证

 

 

R1配置
r1(config)#int s2/1
r1(config-if)#ip ad 192.168.1.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#ip router isis
r1(config-if)#exi
r1(config)#router isis
r1(config-router)#net 49.1234.1111.1111.1111.00

R2配置
r2(config)#int s2/1
r2(config-if)#ip ad 192.168.1.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#ip router isis
r2(config-if)#int s2/2
r2(config-if)#ip ad 10.0.0.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#ip router isis
r2(config-if)#exi
r2(config)#router isis
r2(config-router)#net 49.1234.2222.2222.2222.00
r2(config-router)#exi

R3配置
r3(config)#int s2/1
r3(config-if)#ip ad 10.0.0.3 255.255.255.0
r3(config-if)#no sh
r3(config-if)#ip router isis
r3(config-if)#exi
r3(config)#router isis
r3(config-router)#net 49.1234.3333.3333.3333.00

调试R1 isis更新包
r1#deb isis update-packets
IS-IS Update related packet debugging is on

启用R1 isis区域认证，密码为123
r1#conf t
r1(config)#router isis
r1(config-router)#area 123

*Sep 10 16:46:11.775: ISIS-Upd: Purging LSP 1111.1111.1111.00-00, seq 2
*Sep 10 16:46:11.775: ISIS-Upd: Purging LSP 2222.2222.2222.00-00, seq 3
*Sep 10 16:46:11.779: ISIS-Upd: Purging LSP 3333.3333.3333.00-00, seq 2
*Sep 10 16:46:11.807: ISIS-Upd: Sending L1 LSP 1111.1111.1111.00-00, seq 2, ht 0 on Serial2/1
*Sep 10 16:46:11.831: ISIS-Upd: Building L1 LSP
*Sep 10 16:46:11.831: ISIS-Upd: TLV contents different, code 10
*Sep 10 16:46:11.831: ISIS-Upd:  full SPF required
*Sep 10 16:46:11.839: ISIS-Upd: Rec L1 LSP 1111.1111.1111.00-00, seq 2, ht 0,
*Sep 10 16:46:11.839: ISIS-Upd: from SNPA *HDLC* (Serial2/1)
*Sep 10 16:46:11.839: ISIS-Upd: LSP older than database copy
*Sep 10 16:46:11.843: ISIS-Upd: Sending L1 LSP 2222.2222.2222.00-00, seq 3, ht 0 on Serial2/1
*Sep 10 16:46:11.871: ISIS-Upd: Rec L1 LSP 2222.2222.2222.00-00, seq 4, ht 1199,
*Sep 10 16:46:11.871: ISIS-Upd: from SNPA *HDLC* (Serial2/1)
*Sep 10 16:46:11.871: %CLNS-4-AUTH_FAIL: ISIS: LSP authentication failed
r1(config-router)#
*Sep 10 16:46:11.871: ISIS-Upd: LSP authentication failed
*Sep 10 16:46:11.879: ISIS-Upd: Sending L1 LSP 3333.3333.3333.00-00, seq 2, ht 0 on Serial2/1
*Sep 10 16:46:11.919: ISIS-Upd: Rec L1 LSP 3333.3333.3333.00-00, seq 2, ht 0,
*Sep 10 16:46:11.919: ISIS-Upd: from SNPA *HDLC* (Serial2/1)
*Sep 10 16:46:11.919: ISIS-Upd: LSP same as database copy
*Sep 10 16:46:11.991: ISIS-Upd: Sending L1 LSP 1111.1111.1111.00-00, seq 3, ht 1199 on Serial2/1
*Sep 10 16:46:12.035: ISIS-Upd: Rec L1 LSP 3333.3333.3333.00-00, seq 3, ht 1197,
*Sep 10 16:46:12.035: ISIS-Upd: from SNPA *HDLC* (Serial2/1)
*Sep 10 16:46:12.035: ISIS-Upd: LSP authentication failed      出现了认证失败的消息

开启R2和R3上的区域认证
r2(config)#router isis
r2(config-router)#area 123
r2(config-router)#end

r3(config)#router isis
r3(config-router)#area 123
r3(config-router)#end