From: Grant Stevenson (grant.h.stevenson@virgin.net)
Date: Sun Jul 18 2004 - 07:24:49 GMT-3
Hi Thuna,
I take it when you show interface tunnel it shows up/up?
Can you ping the destination address specified in both tunnels?
Have you treid keepalives,
ie. keepalive 5 3 on both to see if the tunnel is seeing the keepalives,
use show interface tunnel will show up/up if keepalives are seen, if
keepalives not seen it will be up/down.
If you get up/down, then I suggest you look at the encapsulation.
You are using default GRE, I have know of certain IOS that
does not liike this and you may need to configure tunnel mode ipip to get
around it.
Hope this helps
Regards
Grant Stevenson
----- Original Message -----
From: "thunai" <thunai@cisco.com>
To: <ccielab@groupstudy.com>
Cc: <security@groupstudy.com>
Sent: Sunday, July 18, 2004 6:41 AM
Subject: Tunnel Interfaces -- Help Req
> Dear Team ,
> I am working on GRE tunnel , I have the following
> configuration where in r1 is able to pin 12.12.12.1 & 12.12.12.2 where
> aa r2 can ping only 12.12.121 ( remote end ) no its own IP addresss.
> Both r1 and r2 are Learing Loop back routes through OSPF.
>
> Is there any thing wrong with my Config.
>
> r2#ru inter tu 12
> Building configuration...
>
> Current configuration : 155 bytes
> !
> interface Tunnel12
> ip address 12.12.12.2 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> tunnel source Loopback0
> tunnel destination 1.1.1.1
> end
>
> r2#r1
> Trying r1 (10.1.1.1)... Open
>
> r1#ru inter tu 12
> Building configuration...
>
> Current configuration : 155 bytes
> !
> interface Tunnel12
> ip address 12.12.12.1 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> tunnel source Loopback0
> tunnel destination 2.2.2.2
> end
>
> r1#
>
> r1#ro ospf
> 2.0.0.0/24 is subnetted, 1 subnets
> O 2.2.2.0 [110/11] via 10.1.1.2, 00:10:34, Ethernet0
> 3.0.0.0/24 is subnetted, 1 subnets
> O 3.3.3.0 [110/75] via 10.1.1.2, 00:10:34, Ethernet0
> 150.100.0.0/16 is variably subnetted, 4 subnets, 2 masks
> O IA 150.100.32.0/24 [110/74] via 10.1.1.2, 00:10:34, Ethernet0
> O 150.100.23.0/24 [110/74] via 10.1.1.2, 00:10:34, Ethernet0
> r1#
>
>
> r2#ro ospf
> 1.0.0.0/24 is subnetted, 1 subnets
> O 1.1.1.0 [110/11] via 10.1.1.1, 00:10:52, FastEthernet0/0
> 3.0.0.0/24 is subnetted, 1 subnets
> O 3.3.3.0 [110/65] via 150.100.23.3, 00:10:52, Serial0/1.1
> 150.100.0.0/24 is subnetted, 4 subnets
> O 150.100.13.0 [110/11121] via 10.1.1.1, 00:10:52, FastEthernet0/0
> r2#
> Thanks in advance
>
> Regds
> Thuna
>
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This archive was generated by hypermail 2.1.4 : Sun Aug 01 2004 - 10:11:58 GMT-3