标签:BGP后门
如图,R1在AS1中,R2,R3,R4在一个大AS100中(R2,R3在AS23中,R4在AS4中),5在AS5中。solution
R4#show run | s bgp
router bgp 23
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
network 5.5.5.5 mask 255.255.255.255 backdoor
neighbor 2.2.2.2 remote-as 23
neighbor 2.2.2.2 update-source Loopback0
neighbor 2.2.2.2 next-hop-self
neighbor 3.3.3.3 remote-as 23
neighbor 3.3.3.3 update-source Loopback0
neighbor 3.3.3.3 next-hop-self
neighbor 5.5.5.5 remote-as 5
neighbor 5.5.5.5 ebgp-multihop 255
neighbor 5.5.5.5 update-source Loopback0
no auto-summary
R4#show run | s bgp
router bgp 23
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
network 5.5.5.5 mask 255.255.255.255 backdoor
neighbor 2.2.2.2 remote-as 23
neighbor 2.2.2.2 update-source Loopback0
neighbor 2.2.2.2 next-hop-self
neighbor 3.3.3.3 remote-as 23
neighbor 3.3.3.3 update-source Loopback0
neighbor 3.3.3.3 next-hop-self
neighbor 5.5.5.5 remote-as 5
neighbor 5.5.5.5 ebgp-multihop 255
neighbor 5.5.5.5 update-source Loopback0
no auto-summary
标签:BGP后门
原文地址:http://blog.51cto.com/13625527/2104128