Dear @KD4EG,

KD4EG wrote

Greeting folks!  I am having a very difficult time finding proper setting and information for the  TL-R605 routers VPN LAN to LAN configuration.  Our topological graph is  (Router  A  LAN TP-Link TL-R605) > 192.168.1.1 Router > INTERNET < Router 192.168.1.1 < (Router B LAN TP-Link TL-R605 ) I have reviewed all the configuration menus but can not find any clear instructions as to how to set this up.

 

To be clear.  What configuration is necessary for the following menu items to get the routers to communicate with each other:

The ER605 routers are both behind NAT router, is that possible for you to change the front Router 192.168.1.1 into bridge mode?

If it's not possible, please ensure UDP port 500 & port 4500 are open for the ER605 routers on the front NAT devices(Router 192.168.1.1).