Define a Group with Dynamic Peers

To define a BGP group in which the local system's peers are dynamic and change over time, include the allow statement. To recognize all BGP systems as peers, include the allow all statement. To recognize BGP systems within specified address ranges, specify a set of addresses in the allow network/mask-length statement. These addresses can be IPv6 or IPv4 addresses.

[edit protocols bgp]

group group-name { 

    peer-as autonomous-system;

    type type;

    (allow [ network/mask-length... ] | allow all); 

}

For a list of hierarchy levels at which you can configure these statements, see the statement summary sections for these statements.