Is it possible to have the Windows PPTP VPN client (on XP in this instance) connect on a port other than 1723? If so, I can simply port forward another port to the second server. I've done a fair bit of Googling over the last few days and have only found others asking the same question but no answers. I have of course tried to add a port number

What Is PPTP? (Everything You Need to Know) | CactusVPN Jan 22, 2019 VPN Pass-Through Setup | DrayTek 2. Go to NAT >> Open Ports, and open the required port to the IP address of the VPN server. The ports required for each protocol are: PPTP: TCP 1723 (the router will also forward GRE IP47 automatically) L2TP: UDP 1701 ; IPsec: UDP 500 and UDP 4500 if NAT-T is used (the router will also forward ESP IP50 automatically) 3.

Sep 07, 2015

PPTP and L2TP - Fortinet Select Port Forwarding. Set the Protocol to TCP. Enter the External Service Port of 1723, the default for PPTP. Enter the Map to Port to 1723. Select OK. To define a virtual IP for PPTP passthrough - CLI. config firewall vip or config firewall vip6 . edit PPTP_Server. set extintf set extip set portforward enable. set PPTP and GRE - Cisco Community PC (initiates the PPTP connection) ---> Cisco 2620---> (Internet) --> PPTP Server.. When the client attempts to initiate the connection, I can see it in the TCP NAT Translation table, on port 1723, and the connection appears to work, but fails, indicating issues with GRE. (So I am told by the tech I am working with on the other side)

PPTP Frequently Asked Questions - Cisco

8 rows What Is PPTP: Point-to-Point Tunneling Protocol Jul 09, 2020 Outgoing VPN PPTP: How to check if TCP port 1723 and GRE A couple things to point out. 1723 TCP Microsoft Point-to-Point Tunneling Protocol (PPTP) This works in conjunction with your GRE port 47. It should be active no matter what. Also try the following: 1) Make sure the Include Windows logon domain check box is unchecked in the Options tab of the dial-up connection's Properties dialog box. PPTP server not listening on port 1723