Basic eBGP Configuration

In this configuration, the router owen is in AS 300 and Router jazz is in AS 400.

eBGP Config

Peers must be directly connected when using eBGP.  If they are not directly connected, the neighbor ebgp-multihop command must be used and a path through an IGP or static route to reach the peer must exist in order for the routers to establish neighbor relationship. In the configuration above, owen router belongs to AS 300 while jazz router belongs to AS 400.