I have port forwarding configured on a CISCO 887 for client VPN like this: "ip nat inside source static udp 10.65.1.1 500 interface Loopback1 500" It forwards them to a VPN server.
However, now I am trying to set up a site-site VPN, but the tunnel fails to activate because port 500 is being forwarded to the server instead of using the Tunnel. I can't remove it because then users can't log in.
I have read that I should use route-map like this: "ip nat inside source static udp 10.65.1.1 500 interface Loopback1 500 route-map my_route_map" And my_route_map would permit which addresses the forwarding would apply to. However, the router does not seem to recognize this command.
There is this command: "ip nat inside source route-map my_route_map interface Loopback1 overload", but I don't think this controls port forwarding.
I am not very familiar with routing. Is there a way I can achieve port forwarding, but only for specific source addresses? i.e. if it is from a certain IP, don't forward it, otherwise do forward.