Configuring Routers to Advertise a Default Route to a Peer

Procedure

1. Access the system view.

   system-view

2. Access the BGP view.

   bgp { as-number-plain | as-number-dot }

3. Access the BGP IPv6 unicast address family view.

   ipv6-family [ unicast ]

4. Advertise default routes to peers (or a peer group).

   peer { ipv4-address | ipv6-address | group-name } default-route-advertise [ route-policy route-policy-name ] [ conditional-route-match-all { ipv6-address1 prefix-length1 } &<1-4> | conditional-route-match-any { ipv6-address2 prefix-length2 } &<1-4> ]

   If route-policy route-policy-name is set, the BGP device changes attributes of a default route based on the specified route policy.

   If conditional-route-match-all { ipv6-address1 prefix-length1 } &<1-4> is set, the BGP device sends a default route to the peer only when all specified routes exist in the local routing table.

   If conditional-route-match-any { ipv6-address2 prefix-length2 } &<1-4> is set, the local device sends a default route to the peer when one of the specified routes exists in the local routing table.

   

   After the peer default-route-advertise command is used on a device, the device sends a default route with the local address as the next-hop address to a specified peer, regardless of whether there is a default route in the routing table.