VPN configuration with two WAN IPs
Posted on 2014-10-06
Need suggestions on how to set this up. We have two ISPs, each with static IPs. I have a Sonicwall TZ 210 doing failover utilizing the faster ISP as primary and slower ISP only when the primary ISP stops responding to probe attempts.
I'm planning on forwarding port 1723 to the Server 2008 box for VPN access which will authenticate through AD. We want to make the VPN work over a host name so if one ISP is down, it will go to the second static IP and connect. How should I set up the DNS for the domain (a or cname records, or go with dyn dns, or something else?).
How can I configure the Sonicwall to pass VPN connections through both internet sources -- run the public server twice, once for each WAN interface? Then I'll have to configure Routing and Remote Access to accept connections, which shouldn't be an issue unless it is also looking at the IPs.