Can a LAN to LAN VPN connection be established if one end has a dynamic IP address?
Posted by on 25 January 2012 05:02 PM

Answer 

If the VPN dial-out end has a dynamic IP and dial-in end has a static IP, then you can build the LAN-to-LAN VPN normally and no special settings are required.

 

If the VPN dial-out end has a static IP and dial-in end has a dynamic IP, you need set up a DDNS (Dynamic DNS) account for the dial-in end, then the VPN dial-out end can build a LAN-to-LAN VPN by using the DDNS name.

 

http://www.draycare.com.au/dfaq/image/VPN/02/vpn_03.JPG

 

Note: Vigor routers support DDNS. Once you have registered with a DDNS providers then go to "Applications>>Dynamic DNS Setup" to configure it in Vigor router.

 

A couple of DDNS providers are: www.dtdns.com & www.changeip.com

 

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