BGP 基本配置 R4： hostname R4 interface Loopback0 ip address 172.16.1.1 255.255.255.0 ! interface Loopback1 ip address 4.4.4.4 255.255.255.0 ! interface Serial1/1 ip address 24.1.1.4 255.255.255.0 serial restart-delay 0 clockrate 64000 ! router bgp 4 no synchronization bgp router-id 4.4.4.4 bgp log-neighbor-changes network 172.16.1.0 mask 255.255.255.0 neighbor 2.2.2.2 remote-as 123 neighbor 2.2.2.2 ebgp-multihop 2 neighbor 2.2.2.2 update-source Loopback1 no auto-summary ! ip route 2.2.2.0 255.255.255.0 24.1.1.2 R2： hostname R2 interface Loopback0 ip address 2.2.2.2 255.255.255.0 ! interface Serial1/0 ip address 12.1.1.2 255.255.255.0 serial restart-delay 0 clockrate 64000 ! interface Serial1/1 ip address 24.1.1.2 255.255.255.0 serial restart-delay 0 ! router eigrp 90 network 2.2.2.2 0.0.0.0 network 12.1.1.2 0.0.0.0 no auto-summary ! router bgp 123 no synchronization bgp router-id 2.2.2.2 bgp log-neighbor-changes neighbor ccie peer-group neighbor ccie remote-as 123 neighbor ccie update-source Loopback0 neighbor ccie next-hop-self neighbor 1.1.1.1 peer-group ccie neighbor 3.3.3.3 peer-group ccie neighbor 4.4.4.4 remote-as 4 neighbor 4.4.4.4 ebgp-multihop 2 neighbor 4.4.4.4 update-source Loopback0 no auto-summary ! ip route 4.4.4.0 255.255.255.0 24.1.1.4 R1： hostname R1 interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1/0 ip address 12.1.1.1 255.255.255.0 serial restart-delay 0 ! interface Serial1/1 ip address 13.1.1.1 255.255.255.0 serial restart-delay 0 clockrate 64000 ! router eigrp 90 network 1.1.1.1 0.0.0.0 network 12.1.1.1 0.0.0.0 network 13.1.1.1 0.0.0.0 no auto-summary ! router bgp 123 no synchronization bgp router-id 1.1.1.1 bgp log-neighbor-changes neighbor 2.2.2.2 remote-as 123 neighbor 2.2.2.2 update-source L...
