EIGRP Over IPIP

[rezaniazian42634]

Hi

I have run EIGRP over 2 IPIP tunnel in order to have redundancy .But they do not access the local network.is it make difference to run EIGRP over tunnel or something .somebody told me to run BGP instead of EIGRP to solve the multicast problem .Please take look at my configuration and suggest me anything you can.

Router A should ping 10.10.22.0/24

Router B should ping 10.1.0.0/24

SHOW IP ROUTE EIGRP

Router A :  10.0.0.0/8 is variably subnetted, 88 subnets, 3 masks
D                             10.10.22.0/24 [90/297246976] via 10.0.2.18, 02:50:58, Tunnel2122
                                                       [90/297246976] via 10.0.1.18, 02:50:58, Tunnel122

Router B :  10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
D                         10.1.0.0/24 [90/297246976] via 10.0.2.17, 02:55:18, Tunnel2
                                              [90/297246976] via 10.0.1.17, 02:55:18, Tunnel122

however  the route exist but the do not see each other

[Georg Pauwen]

Hello.

post the full running configs (show run) of both Router A and Router B...

[Giuseppe Larosa]

Hello @rezaniazian42634 ,

use p2p GRE tunnels and run EIGRP over it.

>> Router A :  10.0.0.0/8 is variably subnetted, 88 subnets, 3 masks
D                             10.10.22.0/24 [90/297246976] via 10.0.2.18, 02:50:58, Tunnel2122
                                                       [90/297246976] via 10.0.1.18, 02:50:58, Tunnel122

Router B :  10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
D                         10.1.0.0/24 [90/297246976] via 10.0.2.17, 02:55:18, Tunnel2
                                              [90/297246976] via 10.0.1.17, 02:55:18, Tunnel122

>>>>> however  the route exist but the do not see each other

EIGRP implements neighbor state machine and it cannot learn and install routes from devices that are not classified as neighbors so what you say just above makes no sense.

EIGRP is not like RIP just to say it in simple words.

If you have EIGRP routes installed via the tunnels means EIGRP sees EIGRP neighbors over the tunnels.

if there are issues with multicast you can use at router eigrp level the neighbor command to specify remote end IP address over the tunnel

As I have written at the beginning of my post using GRE tunnels solve any issue you can have now with IP over IP tunnels.

Hope to help

Giuseppe