L2TP Server on Mac Server Not Working - Ports Not Open
Posted on 2013-01-07
Hi. We have a client with a MAC server running an L2Tp VPN. Since an OS update it's now not accepting VPN connections. The VPN server is running and the port forwarding is setup correctly, however if I run a port scan from outside it's telling me that port 1701 is not accessible. When i try to connect on VPN it says connection refused. I ran a port scan internally on the Mac Server through network utilities and it doesn't show port 1701 as being open.
How can i troubleshoot this further and / or open port 1701 to allow L2TP traffic again?