Thanks for your repply. When I try to specify outside router as neighbor using neighbor command I get "OSPF: Neighbor address does not map to an interface". How do I resolve this issue ?
What do you mean by "If you are doing NAT then a global and nat combination need to represent the internal IP addresses to the outside network"...? Can you give can example? I am doing NAT on firewall. The Ip address are as follows Inside router Ethernet 10.10.2.1 Firewall inside 10.10.2.1 Firewall outside 138.12.48.2 Outside Router ethernet 138.12.48.1 Thanks a lot for everybody's response. --- "Engelhard M. Labiro" wrote: > 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 [EMAIL PROTECTED] __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=24714&t=24608 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

