Sorry, replying my own message.
The access-list below assumes that you are able to
use nat 0 command (no NAT translation will occur
for the internal IP addressess to be seen from outside
network). If you are doing NAT then a global and
nat combination need to represent the internal IP addresses
to the outside network, before applying the access-list below.

Hope you get the idea.

> Since OSPF uses IP protocol 89, permit this protocol between
> the two OSPF routers with access-list applied at outside and inside
> PIX interfaces, something like this:
> access-list 101 permit 89 host 1.1.1.1 host 2.2.2.2
> access-list 102 permit 89 host 2.2.2.2 host 1.1.1.1
> access-group 101 interface inside
> access-group 102 interface outside
> 
> At the OSPF routers, put neighbour command, so they can speak
> each other directly without multicasting the hello packets.
> 
> Hope you get the idea.
> 
> ----- Original Message -----
> From: "pat" 
> To: 
> Sent: Tuesday, October 30, 2001 1:01 PM
> Subject: OSPF across PIX [7:24608]
> 
> 
> > Does anybody has any ideas on how to run OSPF across
> > firewall. What ports to be open & how to make router
> > esablish nighbour relations across firewall.
> >
> > Any thought on this will be greatly appriciated.
> >
> > Thanks,
> > patterson.
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Make a great connection at Yahoo! Personals.
> > http://personals.yahoo.com




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