GRE tunnel : Loop

From: GAURAV MADAN (gauravmadan1177@gmail.com)
Date: Mon Nov 17 2008 - 12:13:39 ARST


Hi All

This is 2nd time i am asking related question on this forum .. PLss
excuse me for that .. i still couldnt get the concept .

f0/0 f0/0
| |
R1========= Serial========= R2
    ========= FE =========

1) I want comm between f0/0 of R1 and f0/0 of R2.
2) I want this to go via GRE tunnel . I want to use 1 and only 1
protocol OSPF .
3) Tunnel should be able to sustain failures in one of link between 2 routers.

R1
------
interface Tunnel12
 ip address 200.0.0.1 255.0.0.0
 keepalive 10 3
 tunnel source Loopback0
 tunnel destination 2.2.2.2

R2
-----
interface Tunnel12
 ip address 200.0.0.2 255.0.0.0
 keepalive 10 3
 tunnel source Loopback0
 tunnel destination 1.1.1.1

I do understand the fact that since I am learning tunn dest via ospf
and hence can not establish OSPF adj on tunnel interface . Having said
that what are the options to do this task keeping in mind all above
req.

I was able to do this by violating a few req :
[A] I learnt 2.2.2.2 on R1 via rip and 1.1.1.1 on R2 via RIP . Hence
OSPF can be est on tunn and hence communication was over OSPF .

PLease suggest
Gaurav Madan.

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