I need a configuration sample of a GRE tunnel with EIGRP updating thru the tunnel. We are running EIGRP and our new provider (mpls) is not sending the EIGRP updates so we need to be able to create a tunnel for the eigrp traffic. Any configuration sample will help, thanks.
Running EIGRP over GRE tunnels is relatively straightforward. You configure a GRE tunnel, assign an IP address on the tunnel, and make sure that the ip address of the tunnel is included in a network statement in your EIGRP. It might look a bit like this:
interface tunnel 0
ip address 172.16.17.1 255.255.255.252
tunnel source 192.168.1.1
tunnel destination 192.168.2.1
router eigrp 1
where 192.168.1.1 is the address of some interface on the router - perhaps the interface into the MPLS cloud and 192.168.2.1 is some reachable address on the remote router - perhaps its interface into MPLS.
I have done this many times and it works quite well.
One thing to watch for when configuring GRE tunnels is that you do not want to advertise the tunnel destination via the routing protocol going through the tunnel. If the tunnel destination is advertised through the tunnel it may cause problems with recursive routing.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.