Nabil,
Looking back on my post to this thread I realized I forgot to answer the
original question. Yes you can setup a GRE tunnel to pass your OSPF
traffic from one router to another router.
Below is a working config for a multipoint GRE tunnel that uses OSPF.
This is just one config file from which four routers were participating
in a multipoint GRE tunnel. What makes this interesting is that the
hub router (which was not participating in OSPF) had no idea about the
routes being exchanged by the four tail routers. This is very similiar
to what you are trying to do (except for the multipoint tunnel). I think
you should be able to glean what you are looking for from the following
config. If not let me know. Don't forget to open up IP port 47 on your
firewall so that tunnel traffic can get through.
HTH,
AQ
1 version 11.3
2 service timestamps debug uptime
3 service timestamps log uptime
4 no service password-encryption
5 !
6 hostname Dwyer_Inc
7 !
8 interface Loopback100
9 ip address 1.1.1.1 255.255.255.255
10 !
11 interface Tunnel100
12 ip address 200.200.0.1 255.255.255.0
13 no ip redirects
14 ip nhrp map 200.200.0.2 192.168.20.2
15 ip nhrp network-id 200
16 ip nhrp nhs 200.200.0.2
17 ip ospf network non-broadcast
18 tunnel source Serial0
19 tunnel mode gre multipoint
20 tunnel key 200
221 !
22 interface Ethernet0
23 ip address 200.200.110.1 255.255.255.0
24 !
25 interface Serial0
26 ip address 192.168.10.2 255.255.255.0
27 !
28 interface Serial1
29 no ip address
30 shutdown
31 !
32 router eigrp 10
33 network 192.168.10.0
34 !
35 router ospf 25
36 network 200.200.0.0 0.0.255.255 area 0
37 neighbor 200.200.0.2 priority 1
38 neighbor 200.200.0.3 priority 1
39 neighbor 200.200.0.4 priority 1
40 !
41 ip classless
42 !
43 !
44 !
45 line con 0
46 exec-timeout 0 0
47 line aux 0
48 line vty 0 4
49 exec-timeout 0 0
50 login
51 !
52 end
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
>gwakin
>Sent: Tuesday, January 02, 2001 9:19 AM
>To: [EMAIL PROTECTED]
>Subject: Re: PIX and OSPF help! (Revisited)
>
>it is my understanding that a GRE tunnel is required for passing multicast
>traffic over
>a VPN link... however I won't even attempt to forge a working config here-
>you're better
>off checking CCO for that.
>
>GWA
>
>Nabil Fares wrote:
>
> > Greetings,
> >
> > I can't seem to find any information about PIX passing OSPF traffic
>between
> > routers. I'm trying to install a PIX515 between 2 regional routers.
> >
> > Router-C1----------PIX515-----------Router-C2
> >
> > Cisco recommends using the OSPF neighbor command, anyone out there used
>this
> > configuration before? Any information would be helpful.
> >
> > Thanks,
> >
> > Nabil
> >
> > _________________________________
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>_________________________________
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>_________________________________
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**************************************************
Adam Quiggle
Senior Network Engineer
MCI Worldcom/NOC/BP Amoco
[EMAIL PROTECTED]
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