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How does CISCO 1812J Router work with VPN Pass through

Hi!

I've got a problem with 1812J router when I need to add support to a Windows RAS server inside, and dial up from outside(internet).

I just let all of the IP pass through without firewall filter, but it is not work. It seems the RAS client send 10 times LCP request to the server but got no response, and then failed with timeout.

I also tried to open tcp/1723 and IP/47(gre) incoming packet, and it still not work.

Any ideas?

Regards

Henry

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