Need help with commands to open port 1723 on cisco 1720 router

[paulh1111]

I need to configure a Cisco 1720 router so that I can enable Microsoft VPN. I know I need to open port 1723, but that's all I know. What are the command?

 

[routerman]

How is the 1720 set up, if its a basic router without any access lists then port 1723 will be passed without problem.

Can you give a bit more info on the current application of the 1720?

 

[paulh1111]

Great questions. Unfortunately I don't know the answers. This situation is as follows: I'm helping a friend of a friend connect from home to their office. They have Cisco 1700 Series router and wanted a vpn from home to office. It was initially suggested that they do vpn from cisco box to some other router at home. But I thought if we could just open port 1723 and enable pptp, and then use MS vpn, it may have been the easier/cheaper route. So basically, I have never been on their router yet. I hope that helps. Please let me know if their are any othe questions I can answer. I really do appreciate your support.
Thanks.
Paul

 

[routerman]

The 1700 series router is probably running as a firewall with NAT and IP inspection. There will be an access-list on the Internet facing port. You will need to allow the pptp traffic through that ACL and also configure a route map to stop the VPN traffic being NAT'ed.

If you can get a configuration posted I can give you some help.

 

[paulh1111]

Great. Is there an easier way to get a hold of you. Other than this board?

Paul

 

[routerman]

Paul,

I'd rather keep it on the board, that way anyone can chip in with suggestions etc. Best way to access a wide range of experience.

 

[cimeron]

paulhhh, how have you made out with this? I have done the exact same thing successfully and can help you out.