Creates a new neighbor whose remote-as is asn. peer can be an IPv4 address or an IPv6 address.
router bgp 1 neighbor 10.0.0.1 remote-as 2
In this case my router, in AS-1, is trying to peer with AS-2 at 10.0.0.1.
This command must be the first command used when configuring a neighbor.
If the remote-as is not specified,
bgpd will complain like this:
can't find neighbor 10.0.0.1