RE: EIGRP over tunnel interface

According to your configs, there appears to be a device or more between your
R1 and R2.

If those are the actual running configs, your configs look solid, but there
is still something in the middle blocking the EIGRP traffic.

If you change your topology to directly connect R1 and R2 back to back, do
you get the same results?

Do your debugs show the same on both sides?

Tony Schaffran
Sr. Network Consultant
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Jay
McMickle
Sent: Tuesday, October 18, 2011 6:31 AM
To: amin
Cc: Joseph L. Brunner; <ccielab_at_groupstudy.com>
Subject: Re: EIGRP over tunnel interface

My question still stands-
Is there an alternate path other than the tunnel? The peering will drop if
it learns about the neighbor through the tunnel if it has a peering through
another path.
If you want help, the full details are needed!

Regards,
Jay McMickle- CCNP,CCSP,CCDP
Sent from my iPhone
http://mycciepursuit.wordpress.com

On Oct 17, 2011, at 8:27 AM, "amin" <amin_at_axizo.com> wrote:

> Al_Qubba#ping 10.5.5.1 repeat 1000
>
> Type escape sequence to abort.
> Sending 1000, 100-byte ICMP Echos to 10.5.5.1, timeout is 2 seconds:
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!
> Success rate is 100 percent (1000/1000), round-trip min/avg/max =
12/12/280
> ms
>
>
>
> -----Original Message-----
> From: Joseph L. Brunner [mailto:joe_at_affirmedsystems.com]
> Sent: Monday, October 17, 2011 2:58 PM
> To: amin; ccielab_at_groupstudy.com
> Subject: RE: EIGRP over tunnel interface
>
>> the tunnel is 100% working
>
> No its not. If it was eigrp would stay up.
>
> Do this - run a continuous ping from R1 to R2, i.e.
>
> Ping 10.5.5.1 re 100000
>
>
> Does 1 ping fail?
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
amin
> Sent: Monday, October 17, 2011 8:49 AM
> To: ccielab_at_groupstudy.com
> Subject: EIGRP over tunnel interface
>
> Hi experts,
>
>
>
> Strange case in configuring EIGRP over gre tunnel, no neighbors on R1, R2
> see R1 as a neighbor but always give me retry time exceeded, the tunnel is
> 100% working:-
>
>
>
> R1
>
> interface Tunnel40
>
> ip address 10.5.5.1 255.255.255.0
>
> tunnel source 10.10.10.102
>
> tunnel destination 192.168.71.2
>
>
>
> ip route 192.168.71.0 255.255.255.128 10.10.10.101 h static route to reach
> the destination
>
>
>
> interface Serial0/1/0:1
>
> ip address 10.10.10.102 255.255.255.252 h Tunnel source
>
>
>
> router eigrp 100
>
> network 10.5.5.0 0.0.0.255
>
> no auto-summary
>
>
>
>
>
>
>
>
>
> R2
>
>
>
> interface Tunnel0
>
> ip address 10.5.5.2 255.255.255.0
>
> tunnel source 192.168.71.2
>
> tunnel destination 10.10.10.102
>
>
>
> ip route 10.10.10.100 255.255.255.252 192.168.71.1 h static route for the
> destination
>
>
>
> interface FastEthernet0/1
>
> ip address 192.168.71.129 255.255.255.128 h Tunnel source
>
>
>
> router eigrp 100
>
> network 10.5.5.0 0.0.0.255
>
> no auto-summary
>
>
>
> show ip eigrp neighbor
>
> H Address Interface Hold Uptime SRTT RTO Q
Seq
>
> (sec)
> (ms) Cnt Num
>
> 0 10.5.5.1 Tu0 79 00:00:39 1
> 5000 2 0
>
>
>
>
>
> Debug ip eigrp
>
> *Oct 17 12:53:41.679: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
10.5.5.1
> (Tunnel0) is down: retry limit exceeded
>
> *Oct 17 12:53:53.971: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
10.5.5.1
> (Tunnel0) is up: new adjacency
>
>
>
> Regards,
>
> Amin
>
>
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Received on Tue Oct 18 2011 - 06:54:19 ART