I was configuring DMVPN in the lab and I faced an issue with EIGRP updates propagaion. Basically, my setup is comprised of one hub router and 2 spokes. The hub and one of the 2 spokes have Class C network in their inside sides, while the 2nd spoke router has a class B subnet of 184.108.40.206 wih a class C subnet mask of /24.
when configuring DMVPN, the EIGRP works fine with all except for the 220.127.116.11/24 network which doesn't get propagated. The spoke of concern particiapates in the EIGRP communications and learns all the routes but I dont know why its internal subnet doesn't get propagated to the other routers!
When enabling debug on the hub and spoke of concern, I see the following error message:
*Mar 1 04:40:46.022: EIGRP: Packet from ourselves ignored
After seeing that, I went and changed the subnet 18.104.22.168/24 to 192.168.1.0/24 and things worked fine with the same config!!
Does anybody have an idea of why was it failing with 22.214.171.124/24?!
My EIGRP config was this way:
router eigrp 10
network 10.0.0.0 0.0.0.255 (This is for GRE)
network 126.96.36.199 0.0.0.255
Appreciate your feedback.