Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Forward GRE over NAT to firewall

I have a 1800 router at the network perimeter with a public address and private on the inside. Behind that I have a PIX with a private address on the outside interface. PIX uses the router as a gateway. I have a problem in that I can't forward PPTP/GRE traffic through to the PIX. I add port forward 1723 TCP/UDP on the router to the PIX but this doesnt seem enough. I also need GRE I guess which is portless. I manaage to create inound IPSEC tunnels because I can map UDP 500 and encap 4500 UDP. Does anyone know how to do the same for inbound PPTP tunnels?

Thanks

1 REPLY
New Member
344
Views
0
Helpful
1
Replies