VPN port and Protocol Settings

Yesterday, I tried Windows 2003 VPN and wanted to open the port on the front-end firewall. Google + Baidu is the same.ArticleIn turn, it is okay to open port 1723 (PPTP). During the test, it is always unavailable. It took n long to query the data, and there is still no good result.

Later, it turns out that the firewall was set incorrectly. When setting the port, set 1723 to the source port number, which should be the target port number.

Remember that the open port number should be the target port number, not the source port number. Normally, the source port number should be 1024 ~ 65535.

After port 1723 is set successfully, the connection is displayed as connected, but the user name and password are incorrect. After reading the 2003 log, a prompt is displayed. It turns out that port GRE (47) is not open, the user name and password cannot be verified. If the password is enabled, the connection is correct.

Because DHCP is not used, should DHCP ports be opened on the firewall if DHCP is used?

 

Http://www.cnblogs.com/findw/archive/2011/03/18/1988395.html