To verify that these ports are open or to open these ports, contact your network administrator or Internet service provider (ISP).
If you are the administrator of the network, see the documentation that is provided with your networking software to determine the steps that you should follow to open these ports.
To play DirectX games through a network firewall or proxy server, the following requirements must be met:
- To guarantee DirectPlay compatibility, the latest version of DirectX should be installed on the computers that are used by all players who participate in the game.
- The following TCP and UDP ports must be open on the firewall or proxy server:
Using DirectX 7 or an earlier version
Connection Ports for Client Configuration Ports for Host Configuration Initial TCP Connection 47624 Outbound 47624 Inbound Subsequent TCP Inbound 2300-2400 2300-2400 Subsequent TCP Outbound 2300-2400 2300-2400 Subsequent UDP Inbound 2300-2400 2300-2400 Subsequent UDP Outbound 2300-2400 2300-2400
Using DirectX 8 or a later version
Connection Ports for Client Configuration Ports for Host Configuration Initial UDP Connection 6073 Outbound 6073 Inbound Subsequent UDP Inbound 2302-2400 2302-2400 Subsequent UDP Outbound 2302-2400 2302-2400
- Click Start, click
Run, type dxdiag in the Open box, and then click OK.
- Click the Save All Information button to save a Dxdiag.txt report.
- Click Desktop, and then click
- Open the DxDiag.txt file on your desktop and find the section marked "DirectPlay Lobbyable Apps".
Note that each game listed here will report either "(DX7)" or "(DX8)" which corresponds to its DirectPlay connection method.
Note DirectPlay8 games can work with the Internet Connection Firewall (ICF) capabilities of Microsoft Windows XP. When the game starts to host, enumerate, or connect, the appropriate ports will automatically open and when the game quits, these ports will automatically close.
If you are using UPnP compliant network devices and are having difficulty, verify the following:
- When you use Windows XP, make sure that you log on as an administrator.
- If you use a hardware NAT, contact the manufacturer to see if the hardware is UPnP-compliant or if there are any updates for it, if it is not.
- When you use Windows XP Internet Connection Sharing, make sure that the
Allow other network users to control or disable the shared Internet connection and the Protect my computer and network by limiting or preventing access to this computer from the Internet check boxes are selected in the shared network device's properties.
- A client on a Windows Millennium Edition (Me) Internet Connection Sharing computer must join the session before any client behind the NAT joins the session or else the Internet Connection Sharing computer cannot join.
Article ID: 240429 - Last Review: Mar 18, 2008 - Revision: 1