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VPN Ports

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VPN Ports

by awisbey » Fri Aug 20, 2010 9:46 am

Is there a way to change the ports used e.g. 500, 4500 ? I use VPN from home but also use Vodafone Sure Signal (which itself used VPN) and it seems you can't run them together as the router doesn't know where to forward the incoming request for that port.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
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Employee

Re: VPN Ports

by gschiff » Tue Aug 24, 2010 10:17 am

I've had that problem in the past. I would have 1 VPN Tunnel established on port 500 and when I would attempt to connect another on the same port, the first tunnel would get knocked down and the 2nd would not connect.

Turned out my router was not doing P.A.T. Port Address Translation properly.
AT&T Labs,
Tampa Quality Assurance
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
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Employee

Re: VPN Ports

by awisbey » Tue Aug 24, 2010 12:42 pm

Can you recommend any routers that would allow me to do this ? Seems my Belkin won't.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
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Employee

Re: VPN Ports

by obrion » Mon Sep 13, 2010 3:43 pm

Many routers have a feature called something like "VPN Passthrough" which you may need to enable or disable.

The other option you can try is to use ephemeral source ports by selecting that option in the Preferences in the client.

Robert
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
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