Site-to-Site VPN behind NAT

[peter.williams]

I am trying to create a site-to-site VPN tunnel from a Cisco RV 120W behind a AT&T Uverse router to connect back to our corporate office.  I have it connected but I cannot connect the VPN to it because I am behind this other router, all I get in the 192.168.1.x address.  Is there any way of getting the Internet IP address to update on my router, any ports I need to forward on the AT&T router, or can this be done this way.  The client would rather not replace the AT&T router.  Any suggestions on how to do this?

Internet -> AT&T router -> Cisco RV120W router(Mine)

Thank you for your help

[Rick Morris]

In order to get an IP other than what you are getting, you will need to have ATT give you a static IP.  I am guessing based off the info given here that you are getting a DHCP IP from ATT router.  Their router is giving out the 192.168.x.x