BGP学习实验(一)-王军.doc

BGP学习试验(一)（v1.0）作者王军审核分类网络子类时间2020年3月20日版本说明版本日期内容编写人V1.02010-12-7创建文档王军目录一、拓扑及要求3二、设备配置42.1 R1配置42.2 R2配置52.3 R3配置72.4 R4配置82.5 R5配置102.6 R6配置11三、实验结果13一、拓扑及要求拓扑见上图，左边为IGP的物理连接示意图，右边为BGP逻辑连接示意图。1、 全网IGP网段：/16。不允许使用确实路由。帧中继FR为HUB-SPOKE结构，R4为HUB。2、 每个路由器上面都有环回口：lo0 ，通告进对应的IGP。R2的环回口同时属于两个IGP协议：OSPF与EIGRP。R5不运行任何除BGP之外的任何静态路由协议。3、 OSPF A0要求没有DR和BDR。4、 可以允许IGP之间重发布。5、 所有BGP的邻居关系使用环回口更新。6、 每个路由器都对应的环回口：6，并通告进BGP。7、 在AS 3内操作，R5使用R4作为下一跳到达，R5使用R6到达 。8、 R3优选R6到达R5的。9、 要求R2看到 的AS-PATH为“1 1”。10、 要求R2的2 在所有的设备上看到起源为“？”。11、 要求R3所发出的 在AS 3 内具有locPRF per为200，metric为50。12、 R5的环回口5重发布进BGP，要求在AS 3 内操作，除了R5之外所有的路由器看到的起源是I 。13、 要求所有地址可达。二、设备配置2.1 R1配置hostname r1no ip domain lookup!ip cefinterface Loopback0 ip address 55!interface Loopback1 ip address 1 55!interface Serial1/1 ip address serial restart-delay 0!router eigrp 100 network network 55 no auto-summary!router bgp 1 synchronization bgp router-id bgp log-neighbor-changes network 1 mask 55 neighbor remote-as 2 neighbor ebgp-multihop 255 neighbor update-source Loopback0 no auto-summary!ip classlessno ip http server!access-list 11 permit 1!route-map as-path permit 10 match ip address 11 set as-path prepend 1 1!route-map as-path permit 20!2.2 R2配置hostname r2!no ip domain lookup!ip cef!interface Loopback0 ip address 55 ip ospf network point-to-point!interface Loopback1 ip address 2 55!interface Serial1/0 ip address serial restart-delay 0!interface Serial1/1 ip address serial restart-delay 0!interface Serial1/2 ip address encapsulation frame-relay ip ospf network point-to-multipoint ip policy route-map 23 serial restart-delay 0 frame-relay map ip 204 broadcast no frame-relay inverse-arp!router eigrp 100 redistribute ospf 1 metric 1000 100 255 255 1500 network network 55 network 55 no auto-summary!router ospf 1 router-id log-adjacency-changes redistribute eigrp 100 subnets network area 0 network 55 area 0!router bgp 2 synchronization bgp router-id bgp log-neighbor-changes network 2 mask 55 neighbor remote-as 1 neighbor ebgp-multihop 255 neighbor update-source Loopback0 neighbor route-map as-path in neighbor route-map origin out neighbor remote-as 3 neighbor ebgp-multihop 255 neighbor update-source Loopback0 neighbor route-map origin out no auto-summary!ip classlessno ip http server!access-list 1 permit anyaccess-list 11 permit 1access-list 22 permit 2access-list 23 permit access-list 23 permit access-list 23 permit !route-map 23 permit 10 match ip address 23 set ip next-hop !route-map 23 permit 20!route-map origin permit 10 match ip address 22 set origin incomplete!route-map origin permit 20!route-map as-path permit 10 match ip address 11 set as-path prepend 1!route-map as-path permit 20line con 0 exec-timeout 0 0 stopbits 1line aux 0 stopbits 1line vty 0 4 login2.3 R3配置hostname r3!no ip domain lookup!ip cef!interface Loopback0 ip address 55!interface Loopback1 ip address 3 55!interface Serial1/0 ip address serial restart-delay 0!router eigrp 100 network network 55 no auto-summary!router bgp 3 no synchronization bgp router-id bgp log-neighbor-changes network 3 mask 55 neighbor remote-as 2 neighbor ebgp-multihop 255 neighbor update-source Loopback0 neighbor remote-as 3 neighbor update-source Loopback0 neighbor next-hop-self neighbor route-map med33 out neighbor remote-as 3 neighbor update-source Loopback0 neighbor next-hop-self neighbor route-map med33 out no auto-summary!ip classlessno ip http server!access-list 33 permit 3!route-map med33 permit 10 match ip address 33 set metric 50 set local-preference 200!route-map med33 permit 20!line con 0 exec-timeout 0 02.4 R4配置hostname r4!no ip domain lookup!ip cefinterface Loopback0 ip address 55 ip ospf network point-to-point!interface Loopback1 ip address 4 55!interface Serial1/1 ip address serial restart-delay 0!interface Serial1/2 ip address encapsulation frame-relay ip ospf network point-to-multipoint serial restart-delay 0 frame-relay map ip 402 broadcast frame-relay map ip 406 broadcast no frame-relay inverse-arp!router ospf 1 router-id log-adjacency-changes redistribute static subnets network area 0 network 55 area 0!router bgp 3 no synchronization bgp router-id bgp log-neighbor-changes network 4 mask 55 redistribute ospf 1 route-map 23 neighbor remote-as 3 neighbor update-source Loopback0 neighbor next-hop-self neighbor remote-as 4 neighbor ebgp-multihop 255 neighbor update-source Loopback0 neighbor route-map medr4 out neighbor remote-as 3 neighbor update-source Loopback0 no auto-summary!ip classlessip route 55 no ip http server!access-list 22 permit 2access-list 23 permit access-list 23 permit access-list 23 permit !route-map 23 permit 10 match ip address 23!route-map medr4 permit 10 match ip address 22 set metric 50!route-map medr4 permit 20line con 0 exec-timeout 0 0 end2.5 R5配置hostname r5!no ip domain lookup!ip cef!interface Loopback0 ip address 55!interface Loopback1 ip address 5 55!interface FastEthernet0/0 ip address duplex half!interface Serial1/0 ip address serial restart-delay 0!router bgp 4 no synchronization bgp router-id bgp log-neighbor-changes network 5 mask 55 neighbor remote-as 3 neighbor ebgp-multihop 255 neighbor update-source Loopback0 neighbor remote-as 3 neighbor ebgp-multihop 255 neighbor update-source Loopback0 no auto-summary!ip classlessip route 55 ip route 55 no ip http server!line con 0 exec-timeout 0 0 end2.6 R6配置hostname r6!boot-start-markerboot-end-marker!no aaa new-modelip subnet-zero!no ip domain lookup!ip cef!interface Loopback0 ip address 55 ip ospf network point-to-point!interface Loopback1 ip address 6 55!interface FastEthernet0/0 ip address duplex half!interface Serial1/2 ip address encapsulation frame-relay ip ospf network point-to-multipoint serial restart-delay 0 frame-relay map ip 604 broadcast!router ospf 1 router-id log-adjacency-changes network 55 area 0 network area 0!router bgp 3 no synchronization bgp router-id bgp log-neighbor-changes network 6 mask 55 neighbor remote-as 3 neighbor update-source Loopback0 neighbor next-hop-self neighbor route-map r355 out neighbor remote-as 3 neighbor update-source Loopback0 neigh