I am having trouble connecting to a L2TP IPSec VPN when I use my wireless router. I have a LinkSys WRT54GL v1.1 wireless router with the most current version of tomato (1.28).

I have no issues connecting to the VPN server when I connect directly to the modem. I am using Windows 7 and its built-in VPN client.

Any ideas?

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Enable the router's "VPN Passthrough" feature, which should be in the Advanced settings somewhere.

Of course, if you'd like to (or need to) get away from IPSec, I highly recommend OpenVPN which works without the need to enable the "VPN Passthrough" option:

  OpenVPN (free, open source, userland VPN solution)
  http://www.openvpn.net/index.php/open-source.html

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I am using Tomato there is no vpn passthrough option – Johnny Apr 30 '11 at 4:38
If IPSec is not supported, then a solution like the one that OpenVPN provides will be needed. IPSec works differently than most applications, which is why special support by routers may be needed. – Randolf Richardson May 2 '11 at 5:16
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