DMVPN Dual Hub Dual Cloud

Hi Team,

I just had an interesting experience configuring my second hub, I forgot too add the no split horizon eigrp # command. I was getting the following errors:

Mar  1 01:23:08.639: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.254.0/24 - do advertise out Tunnel2
*Mar  1 01:23:08.639: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.254.0/24 metric 128256 - 256 128000
*Mar  1 01:23:08.723: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar  1 01:23:08.723: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.254.0/24 M 4294967295 - 284444416 4294967295 SM 4294967295 - 284444416 4294967295

What was interesting is that I still able to establish neighbors though, before adding split horizon on tunnel 2 interface. I was having issues getting 192.168.254.0 on my spoke’s routing table. So I added the network statement as follows and it worked without split horizon on:

router eigrp 1
net 192.168.254.0 

before I had it like this and it wasn’t working.

router eigrp 1
net 192.168.0.0

I hadn’t seen this error message so I was a little confused by this. I guess this is the error message for slit horizon not being enabled?

Thanks