NATs networks being distributed via EIGRP 1

[dozier]

I've got a Cisco 3745 on one end of a Frame Relay link and a Cisco 1721 at the other end. The 1721 does some static NATs mostly for network separation (the 3745 is ours, and the 1721 is a customers and it's integrated into their network which has overlapping addresses). Right now I have to add static route entries on the 3745 for the NAT'ed (global) addresses and point it to the 1721. I was hoping there was a way for this to happen dynamically through EIGRP (or possibly another such as OSPF or other link-state routing protocol). So far I've been unable to find a way. Does anyone know if this is possible?

Thanks.

 

[Cluebird]

If both routers are running EIGRP for the same AS, have the 1721 advertise the NATed addresses to your 3745. You may have to add a loopback interface to the 1721 so it is attached to the global pool. Otherwise, EIGRP won't be allowed to advertise the range. Config should look something like this:

!
hostname 1721
!
interface loopback 20
ip address x.x.x.x mask.mask.mask.mask !the global range
!
router eigrp [AS]
network x.x.x.x !same as attached to loopback
!
wr

 

[dozier]

That worked beautifully, thanks very much.