Configure the Router Identifier

The router identifier is used by BGP and OSPF to identify the router from which a packet originated. The router identifier usually is the IP address of the local router. If you do not configure a router identifier, the IP address of the first interface encountered in the router is used.

To configure the router identifier, include the router-id statement at the [edit routing-options] hierarchy level (for routing instances, include the statement at the [edit routing-instances routing-instance-name routing-options] hierarchy level):

[edit]

routing-options {

    router-id address; 

}