topic Site to Site VPN Same Network in Network Security https://community.cisco.com/t5/network-security/site-to-site-vpn-same-network/m-p/1287624#M826439 <P></P><P></P><P>I have an ASA5520 running 8.0.4. I need to create a tunnel with a vendor using the same internal network as we are. They are unable NAT on their side. I would like both sides to be able to bring up the tunnel. They are using 10.2.x.x/16 as their internal network, as are we. The interesting traffic on my side would come from the nodes 10.0.194.1 and 10.0.194.5. How do I configure my side of the tunnel to get this to work? </P><P></P><P>Thanks, </P><P>Keith </P><P></P><P></P> Mon, 11 Mar 2019 16:16:44 GMT ancarr 2019-03-11T16:16:44Z Site to Site VPN Same Network https://community.cisco.com/t5/network-security/site-to-site-vpn-same-network/m-p/1287624#M826439 <P></P><P></P><P>I have an ASA5520 running 8.0.4. I need to create a tunnel with a vendor using the same internal network as we are. They are unable NAT on their side. I would like both sides to be able to bring up the tunnel. They are using 10.2.x.x/16 as their internal network, as are we. The interesting traffic on my side would come from the nodes 10.0.194.1 and 10.0.194.5. How do I configure my side of the tunnel to get this to work? </P><P></P><P>Thanks, </P><P>Keith </P><P></P><P></P> Mon, 11 Mar 2019 16:16:44 GMT https://community.cisco.com/t5/network-security/site-to-site-vpn-same-network/m-p/1287624#M826439 ancarr 2019-03-11T16:16:44Z Re: Site to Site VPN Same Network https://community.cisco.com/t5/network-security/site-to-site-vpn-same-network/m-p/1287625#M826464 <HTML><HEAD></HEAD><BODY><P>I don't think you'll ever be able to have both sides bring the tunnel up because of the NAT'd address space. Here;s is a config guide on configuring VPN with NAT (only 1 side can initiate).</P><P></P><P><A class="jive-link-custom" href="http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00808c9950.shtml" target="_blank">http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00808c9950.shtml</A></P><P></P><P>Hope it helps.</P></BODY></HTML> Thu, 17 Sep 2009 13:26:01 GMT https://community.cisco.com/t5/network-security/site-to-site-vpn-same-network/m-p/1287625#M826464 Collin Clark 2009-09-17T13:26:01Z