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Legacy Forums => General Discussion (Legacy) => Topic started by: Hans Pedersen on June 07, 2002, 02:49:27 PM

Title: Which ports for PPTP?
Post by: Hans Pedersen on June 07, 2002, 02:49:27 PM

I want to be able to remote our E-Smith server with a PPTP VPN tunnel. But between the server and "the Internet" is a router.

Which ports must be forwarded to the E-Smith box (TCP and UDP)?

Hans
Denmark, EU

Title: Re: Which ports for PPTP?
Post by: Franck on June 07, 2002, 04:24:52 PM

Hans Pedersen wrote:
> Which ports must be forwarded to the E-Smith box (TCP and UDP)?
TCP Port 1723 and GRE Protocol (47).

If your router can only forward TCP and UDP protocols, but not GRE, you won't be able to use PPTP VPN.

Title: Re: Which ports for PPTP?
Post by: Jesper Bille Haun on June 09, 2002, 02:21:18 AM

This works for me (in Denmark) with a standard Cisco 677:

ccos>enable
ccos>set nat entry add 192.168.1.100 1723 207.46.230.219 1723 tcp
ccos>set nat entry add 192.168.1.100 1723 207.46.230.219 1723 udp
ccos>set nat entry add 192.168.1.100 1723 207.46.230.219 1723 47
ccos>set nat entry add 192.168.1.100 0 207.46.230.219 0 47
ccos>write
ccos>reboot

First IP number is your SME server (inside NAT)
Second IP number is your real public IP number

Title: Re: Which ports for PPTP?
Post by: Hans Pedersen on June 12, 2002, 02:58:48 PM

Unfortunately the router we're using (SMC Barricade) doesn't support GRE or 47 port forwarding... I guess I must give up accessing our SME Server Manager from the outside. 8-(

/Hans