Hi guys. Here's an interesting one I hope you might be able to help me with. I've setup a Netgear DG834GT router at our work. Works great on every level accept the VPN. I have all the necessary VPN ports forwarding to our Windows based VPN server. I'm also aware of protocol 47, although there is no configurable setting to let this pass through (on Netgear routers protocol 47 is supposed to follow the direction of PPTP port forwarding).
However, on some machines when I try to connect it just times out when the user name and password is trying to be validated (suggesting the GRE packets aren't getting through via protocol 47). On other machines it connects up (although only some TCP traffic doesn't pass through)! I've set VPNs up like this loads of times, and have finally resigned myself to the fact that this particular model (which I haven't used before - I've always used its younger brother, the DG834G) can't cope with the VPN stuff.
So my question is, has anyone else has this problem? If so, did you manage to fix it? I have tried all the various Netgear firmware versions, including the most recent that claims to fix a VPN pass-through issue, but does anyone know of third party firmware that actually works?
I look forward to any feedback, even if it is just to confirm that the router is a little monster and I need to send it back