PPTP / GRE port forwarding

Hi, I'm configuring a Cisco 837, and I have a VPN server behind it, which needs to be accessible from the internet.

Forwarding TCP port 1723 is done, I can telnet from a remote location which works. How can I set up a forwarding for GRE / proto 47 ?

TIA

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a
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see PPTP FAQ

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and

Configuring PPTP Through PAT to a Microsoft PPTP Server

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access-list 101 permit tcp host x.x.x.x host x.x.x.x eq 1723 access-list 101 permit gre host x.x.x.x host x.x.x.x

Reply to
Merv

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