Site to Site VPN (PIX525 to ASA5510) with the same Internal Network Address

jon-macdonald · ‎09-14-2009

How do I configure a vpn where the internal network at each end of the tunnel are using the same addressing.

aka

net a Inside Network 10.0.1.0 /24

VPN between site a and site B

net b Inside Network 10.0.1.0 /24

Not even sure how to ask the question to lookup the material.

Any and all help appreciated.

JORGE RODRIGUEZ · ‎09-14-2009

Jon, your question is very clear, you have to NAT one end so that it appears at other end under different class other than 10.0.1.0/24 network that overlaps, use policy nat to create the tunnel.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00808c9950.shtml

Jorge Rodriguez