Linksys and VPN

G

Guest

I get a 721 error message while trying to make a VPN connection to a SBS
server. ISA isn't installed; a Linksys router is used as the firewall. I have
remote access and routing setup on the server and port forwarding on the
Linksys, I get verifying user name and password then the 721 error message. I
think it's the Linksys router but it could be something in remote access on
the server. Appreciate any help in advance.
 
J

Janani V

Usually, error 721 is caused by the router blocking GRE (protocol 47).
If the router/firewall does not mention GRE by name or by its protocol
number, look for things like PPTP pass-through or even VPN pass-through
mode. Both of these are used by router makers to indicate allowing GRE.
 

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