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Chapter 8: BGP Configuration Guide
The configuration for router C1 (a Cisco router) is as follows:
router bgp 1
no synchronization
network 16.122.128.0 mask 255.255.255.0
network 17.122.128.0 mask 255.255.255.0
neighbor 16.122.128.1 remote-as 1
neighbor 16.122.128.1 next-hop-self
neighbor 16.122.128.1 soft-reconfiguration inbound
neighbor 16.122.128.2 remote-as 1
neighbor 16.122.128.2 next-hop-self
neighbor 16.122.128.2 soft-reconfiguration inbound
neighbor 16.122.128.9 remote-as 1
neighbor 16.122.128.9 next-hop-self
neighbor 16.122.128.9 soft-reconfiguration inbound
neighbor 18.122.128.4 remote-as 4
The configuration for router C2 (a Cisco router) is as follows:
router bgp 1
no synchronization
network 16.122.128.0 mask 255.255.255.0
network 17.122.128.0 mask 255.255.255.0
neighbor 14.122.128.5 remote-as 5
neighbor 16.122.128.1 remote-as 1
neighbor 16.122.128.1 next-hop-self
neighbor 16.122.128.1 soft-reconfiguration inbound
neighbor 16.122.128.2 remote-as 1
neighbor 16.122.128.2 next-hop-self
neighbor 16.122.128.2 soft-reconfiguration inbound
neighbor 16.122.128.8 remote-as 1
neighbor 16.122.128.8 next-hop-self
neighbor 16.122.128.8 soft-reconfiguration inbound
EBGP Multihop Configuration Example
EBGP Multihop refers to a configuration where external BGP neighbors are not connected
to the same subnet. Such neighbors are logically, but not physically connected. For
example, BGP can be run between external neighbors across non-BGP routers. Some
additional configuration is required to indicate that the external peers are not physically
attached.
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Internet Appliance User Reference Manual
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