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eigrp stub命令及其参数的研究实验目的:验证eigrp stub命令在hub-spoke链路中的作用及后加不同参数的差别初始配置:R1interface Ethernet0/0ip address 10.1.1.1 255.255.255.0!interface Serial2/0ip address 13.1.1.1 255.255.255.0serial restart-delay 0!router eigrp 100network 10.1.1.0 0.0.0.255network 13.1.1.0 0.0.0.255auto-summaryR2interface Ethernet0/0ip address 10.1.1.2 255.255.255.0!interface Serial1/0ip address 23.1.1.2 255.255.255.0serial restart-delay 0clock rate 64000router eigrp 100network 10.1.1.0 0.0.0.255network 23.1.1.0 0.0.0.255auto-summaryR3interface Serial1/0ip address 13.1.1.3 255.255.255.0serial restart-delay 0clock rate 64000!interface Serial2/0ip address 23.1.1.3 255.255.255.0serial restart-delay 0!router eigrp 100network 13.1.1.0 0.0.0.255network 23.1.1.0 0.0.0.255auto-summary1)比较R3打入eigrp stub命令前后 R1 shutdown e0/0对R3 debug eigrp信息的影响R3打入eigrp stub命令前, shutdown e0/0 ,对R3 debug ip eigrpr3#*Mar 28 06:40:21.455: IP-EIGRP(Default-IP-Routing-Table:100):Processing incoming QUERY packet*Mar 28 06:40:21.455: IP-EIGRP(Default-IP-Routing-Table:100): Int 10.1.1.0/24 M 4294967295 - 0 4294967295 SM 4294967295 - 0 4294967295*Mar 28 06:40:21.515: IP-EIGRP(Default-IP-Routing-Table:100): 10.1.1.0/24 - not in IP routing table*Mar 28 06:40:21.515: IP-EIGRP(Default-IP-Routing-Table:100): Int 10.1.1.0/24 metric 4294967295 - 0 4294967295*Mar 28 06:40:21.515: IP-EIGRP(Default-IP-Routing-Table:100): Processing incoming UPDATE packet*Mar 28 06:40:21.515: IP-EIGRP(Default-IP-Routing-Table:100): Int 23.0.0.0/8 M 4294967295 - 1657856 4294967295 SM 4294967295 - 1657856 4294967295(以下略)说明R1对R3既发更新信息也发查询信息打入eigrp stub命令后r3(config-router)#*Mar 28 06:42:34.199: IP-EIGRP(Default-IP-Routing-Table:100): Processing incoming UPDATE packet*Mar 28 06:42:34.199: IP-EIGRP(Default-IP-Routing-Table:100): Int 1.0.0.0/8 M 2297856 - 1657856 640000 SM 128256 - 256 128000*Mar 28 06:42:34.199: IP-EIGRP(Default-IP-Routing-Table:100): Int 10.0.0.0/8 M 2195456 - 1657856 537600 SM 281600 - 256000 25600*Mar 28 06:42:34.199: IP-EIGRP(Default-IP-Routing-Table:100): Int 23.0.0.0/8 M 2707456 - 1657856 1049600 SM 2195456 - 1657856 537600*Mar 28 06:42:34.199: IP-EIGRP(Default-IP-Routing-Table:100): 23.0.0.0/8 routing table not updated thru 13.1.1.1*Mar 28 06:42:34.531: IP-EIGRP(Default-IP-Routing-Table:100): Processing incoming UPDATE packet*Mar 28 06:42:34.531: IP-EIGRP(Default-IP-Routing-Table:100): Int 10.0.0.0/8 M 2195456 - 1657856 537600 SM 281600 - 256000 25600*Mar 28 06:42:34.531: IP-EIGRP(Default-IP-Routing-Table:100): Int 13.0.0.0/8 M 2707456 - 1657856 1049600 SM 2195456 - 1657856 537600说明打入eigrp stub命令后R1对R3只发更新信息 不发查询信息2)在eigrp stub命令后分别加入不同参数 观察比较eigrp stub connected*Mar 28 07:22:42.663: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 23.1.1.2 (Serial2/0) is down: peer info changed*Mar 28 07:22:42.663: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 13.1.1.1 (Serial1/0) is down: peer info changedr3(config-router)#*Mar 28 07:22:44.567: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 13.1.1.1 (Serial1/0) is up: new adjacencyr3(config-router)#*Mar 28 07:22:44.595: IP-EIGRP(Default-IP-Routing-Table:100): 13.1.1.0/24 - do advertise out Serial1/0*Mar 28 07:22:44.595: IP-EIGRP(Default-IP-Routing-Table:100): 23.1.1.0/24 - do advertise out Serial1/0*Mar 28 07:22:44.595: IP-EIGRP(Default-IP-Routing-Table:100): Int 23.1.1.0/24 metric 2169856 - 1657856 512000*Mar 28 07:22:44.595: IP-EIGRP(Default-IP-Routing-Table:100): 13.0.0.0/8 - denied by stub*Mar 28 07:22:44.595: IP-EIGRP(Default-IP-Routing-Table:100): 23.0.0.0/8 - denied by stub看出打入connected 参数,只宣告直连信息不宣告汇总信息eigrp stub receive-only*Mar 28 07:28:08.975: IP-EIGRP(Default-IP-Routing-Table:100): 13.1.1.0/24 - denied by receive-only stub*Mar 28 07:28:08.975: IP-EIGRP(Default-IP-Routing-Table:100): 23.1.1.0/24 - denied by receive-only stub*Mar 28 07:28:08.975: IP-EIGRP(Default-IP-Routing-Table:100): 13.0.0.0/8 - denied by receive-only stub*Mar 28 07:28:08.975: IP-EIGRP(Default-IP-Routing-Table:100): 23.0.0.0/8 - denied by receive-only stub*Mar 28 07:28:09.963: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 13.1.1.1 (Serial1/0) is up: new adjacency*Mar 28 07:28:09.995: IP-EIGRP(Default-IP-Routing-Table:100): 13.1.1.0/24 - denied by receive-only stub*Mar 28 07:28:09.995: IP-EIGRP(Default-IP-Routing-Table:100): 23.1.1.0/24 - denied by receive-only stub*Mar 28 07:28:09.995: IP-EIGRP(Default-IP-Routing-Table:100): 13.0.0.0/8 - denied by receive-only stub*Mar 28 07:28:09.995: IP-EIGRP(Default-IP-Routing-Table:100): 23.0.0.0/8 - denied by receive-only stubEigrp进程接口只接收更新不发送更新eigrp stub summary*Mar 28 07:29:56.975: IP-EIGRP(Default-IP-Routing-Table:100): 13.1.1.0/24 - denied by stub*Mar 28 07:29:56.975: IP-EIGRP(Default-IP-Routing-Table:100): 23.1.1.0/24 - denied by stub*Mar 28 07:29:56.975: IP-EIGRP(Default-IP-Routing-Table:100): 13.0.0.0/8 - poison advertise out Serial1/0*Mar 28 07:29:56.975: IP-EIGRP

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