Cisco NAT of Microsoft VPN Client to Microsoft VPN Server

[steven_alilovic]

I would like to know if Cisco NAT can be performed on Microsoft VPN client. And if so what feature set is required. I have a 2611 router.

Thanks.

[wdrootz]

Microsoft PPTP requires GRE (IP protocol 47) and TCP 1723 be open. This should work with NAT no problem but not Port translation (many to one).

[sfeldne]

I've been trying to configure this for a while now and I can't seem to get past the fact that you can not configure GRE in a "ip nat inside source static" command.

I can configure tcp/udp using port 1723, but not GRE?? What am I doing wrong?