【正文】 uter) neighbor ebgpmultihop 255 224。關(guān)閉自動匯總R2的配置R2(config)router eigrp 100R2(configrouter) network R2(configrouter) network R2(configrouter) no autosummaryR2(config)router bgp 65001R2(configrouter) no synchronizationR2(configrouter) network mask R2(configrouter) network mask R2(configrouter) neighbor remoteas 65001R2(configrouter) neighbor updatesource Loopback0R2(configrouter) neighbor nexthopself 224。指定鄰居R1(configrouter) neighbor updatesource Loopback0 224。關(guān)閉與IGP的同步R1(configrouter) network mask 224。關(guān)閉自動匯總R1(config)router bgp 65001 224。啟用eigrp100R1(configrouter)network 224。定義網(wǎng)絡(luò)類型，否則為主機路由32位!interface Serial1 ip address ip ospf authentication messagedigest ip ospf messagedigestkey 1 md5 cisco clockrate 64000!router ospf 10redistribute connected subnets routemap oe network area 0!accesslist 1 permit accesslist 1 permit accesslist 2 permit routemap oe permit 10 match ip address 1!routemap oe deny 20 match ip address 2!routemap oe permit 25!end實驗四、配置Bgp環(huán)境：三臺路由器串口相連，其它接口配置如圖要求： peer , R2R3建立ebgp peer步驟一：配置三臺路由器接口使其連通。外部路由條目 , 4 subnets, 2 masksD , 00:03:56, Null0C , Loopback0C , Loopback1C , Loopback2 , 1 subnetsC is directly connected, Serial0D EX [170/2195456] via , 00:01:53, Serial0D EX [170/2195456] via , 00:01:53, Serial0R2sh ip routeCodes: 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 ISIS, L1 ISIS level1, L2 ISIS level2, ia ISIS inter area * candidate default, U peruser static route, o ODR P periodic downloaded static routeGateway of last resort is not set , 1 subnetsC is directly connected, Serial0 , 1 subnetsD [90/2297856] via , 00:05:39, Serial1 , 1 subnetsC is directly connected, Serial1O E2 [110/20] via , 00:03:42, Serial0 224。將列表加載R3(config) routemap oe permit 25 224。將列表加載R3(config) routemap oe deny 20 224。定義分發(fā)條件列表R3(config) accesslist 1 permit R3(config) accesslist 2 permit R3(config) routemap oe permit 10 224。將ospf重分發(fā)進eigrpR2(config) router ospf 10R2(configrouter) redistribute eigrp 100 subnets 224。啟用接口驗證R2(configif) ip ospf messagedigestkey 1 md5 ciscoR3的配置R3(config) interface s1R3(configif) ip ospf authentication messagedigest 224。在R2上即啟用EIGRP并且啟用OSPFR2(configrouter) network area 0R3的配置R3(config) router ospf 10R3(configrouter) network area 0步驟三：配置EIGRP手工路由匯總和Ospf接口驗證R1的配置R1(config) interface s0R1(configif) ip summaryaddress eigrp 100 224。發(fā)布相應(yīng)接口R1(configrouter)network R1(configrouter)network R1(configrouter)network R1(configrouter) no autosummary 224。R1的配置R1(config) interface Loopback0R1(configif)ip address R1(config) interface Loopback1R1(configif)ip address R1(config)interface Loopback2R1(configif)ip address R1(config) interface s0R1(configif) ip address R1(configif)clock rate 64000R1(configif)no shutdownR2的配置R2(config)interface s0R2(configif)ip address R2(configif)no shutdownR2(config)interface s1R2(configif) ip address R2(configif)no shutdownR3的配置R3(config) interface Loopback0R3(configif)ip address R3(config) interface Loopback1R3(configif)ip address R3(config)interface Loopback2R3(configif)ip address R3(config) interface s1R3(configif) ip address R3(configif)clock rate 64000R3(configif)no shutdown步驟二： 配置Eigrp ,OspfR1的配置R1(config) router eigrp 100 224。鄰居已建立，點對點無DR之說Neighbor ID Pri State Dead Time Address Interface 1 FULL/ 00:00:33 Serial0R2show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface 1 FULL/ 00:00:33 Serial0 1 FULL/ 00:00:34 Serial1R3show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface 1 FULL/ 00:00:37 Serial1步驟八：用ping命令測試R1ping 224。OSPF域間學來的路由條目 , 1 subnetsO IA [110/129] via , 00:09:31, Serial0 , 1 subnetsC is directly connected, Serial0 , 4 subnets, 2 masksC , Loopback2C , Loopback1C , Loopback0O , 00:09:32, Null0 224。兩端必須一致步驟六：查看路由表R1show ip routeCodes: 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 ISIS, su ISIS summary, L1 ISIS level1, L2 ISIS level2 ia ISIS inter area, * candidate default, U peruser static route o ODR, P periodic downloaded static routeGateway of last resort is not set , 1 subnetsO [110/65] via , 00:09:41, Serial0 224。啟用驗證R1(configif) ip ospf messagedigestkey 1 md5 cisco 224。手工匯總路由R2的配置R2(config)router ospf 1R2(configrouter) area 0 range 224。將接口參與到區(qū)域2內(nèi)R2(configrouter)network area 1R3的配置R3(config)router ospf 2R3(configrouter)routerid R3(configrouter)network area 2R3(configrouter)network area 2步驟三：配置ospf虛鏈路R1的配置R1(config)router ospf 1R1(configrouter) area 1 virtuallink 224。將接口參與到區(qū)域1內(nèi)R1(configrouter)network area 0 224。啟用ospf協(xié)議，進程號為1R1(configrouter)routerid 224。測試連通性，顯示已通!!!!!R3ping !!!!!