EIGRP participate on DHCP interface

[d_cypher88]

This is for a mobile application where the LAN will connect to different spots of the WAN, imagine a van moving and connecting at different points based on current location. Let's assume network A is inside the van and network B is a /30 network assigned by DHCP server every time the van connects to the network.

OSPF works well but EIGRP will not exchange information with the neighbor network B. Since we don't know the network that will be assigned outside we can't do "config-router>Network B" as that always changes. For OSPF the answer was to explicitly enable ospf on the interface.

Any idea on how to get the interface in the unknown network (until DHCP assignment) to participate in the EIGRP process?

thank you,

Darin

[Mark Malone · Accepted solution]

Any idea on how to get the interface in the unknown network (until DHCP assignment) to participate in the EIGRP process?

 0.0.0.0 255.255.255.255 under eigrp process , will advertise all interfaces in eigrp , as soon as a dhcp ip is given to the interface it will advertise it too

you could probably do a cleaner method with EEM match against a regular expression but you would still probably need to know at least the range its going to come out of