Site to Site VPN between sites with similar subnets

ribin.jones · ‎09-16-2010

Hi,

I have two sites A and B. I need to do site to site VPN between these two sites. My problem is that, both the sites have the same range of internal IP's (192.168.100.0/24). How can I get the vpn configured in this situation?

Thanks for any help.

- Ribin

joyride_us2 · ‎09-16-2010

Hi,

if you set up source NAT'ing on one side, this should work pretty well.

ribin.jones · ‎09-16-2010

Hi,

Thanks for the reply.

I have ASA at Site A and Cisco 2811 router at Site B. If I choose to do source NAT ing at Site B (Cisco router), can you tell me the steps/configs that I need to do for this?

- Ribin

joyride_us2 · ‎09-16-2010

this one should work fine :

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094e77.shtml

(of course you need to use a default route on the router to send traffic across)