Cisco 2821 on branch router

Version 1

    I would normally use a loopback interface to source it from but in this case, the loopback ip address cannot be announced over the g0/1 connection which is the normal route to the NTA server.

    Tunnel interfaces are only used for backup but sometimes traffic come in this way, and I want to be able to see what it is.

     

    ip flow-export source GigabitEthernet0/1

    ip flow-export version 5

    ip flow-export destination <dest-ip> 2055

    interface GigabitEthernet0/0

    ip flow ingress

    ip flow egress

    interface GigabitEthernet0/1

    ip flow ingress

    ip flow egress

    interface Tunnel1

    ip flow ingress

    interface Tunnel2

    ip flow ingress