Posted by: manilageek | April 28, 2012

Dual ISP BGP Configuration

CE1:
router bgp 65500
no synchronization
bgp log-neighbor-changes
network 144.1.2.0 mask 255.255.254.0
network 144.1.2.0 mask 255.255.255.0

neighbor 144.1.3.250 remote-as 65500
neighbor 144.1.3.250 version 4
neighbor 144.1.3.250 next-hop-self
neighbor 144.1.3.250 soft-reconfiguration inbound
neighbor 144.1.3.250 filter-list 2 in
neighbor 144.1.3.250 filter-list 1 out

neighbor 200.1.2.117 remote-as 775
neighbor 200.1.2.117 ebgp-multihop 5
neighbor 200.1.2.117 update-source Loopback0
neighbor 200.1.2.117 version 4
neighbor 200.1.2.117 next-hop-self
neighbor 200.1.2.117 soft-reconfiguration inbound
neighbor 200.1.2.117 filter-list 3 out
no auto-summary

CE2:
router bgp 65500
no synchronization
bgp log-neighbor-changes
network 144.1.2.0 mask 255.255.254.0
network 144.1.3.0 mask 255.255.255.0

neighbor 144.1.3.249 remote-as 65500
neighbor 144.1.3.249 version 4
neighbor 144.1.3.249 next-hop-self
neighbor 144.1.3.249 soft-reconfiguration inbound
neighbor 144.1.3.249 filter-list 2 in
neighbor 144.1.3.249 filter-list 1 out

neighbor 100.1.2.221 remote-as 299
neighbor 100.1.2.221 ebgp-multihop 5
neighbor 100.1.2.221 update-source Loopback0
neighbor 100.1.2.221 version 4
neighbor 100.1.2.221 next-hop-self
neighbor 100.1.2.221 soft-reconfiguration inbound
neighbor 100.1.2.221 filter-list 3 out
no auto-summary

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