This topic describes the settings that .NET Messenger Service uses for TCP ports, voice communications, file transfer, and firewalls.
The TCP ports need to be configured so that sockets on a port remain open for extended periods of time.
.NET Messenger Service establishes an outgoing TCP connection from port 6901 for all voice communications.
In the case of computer-to-computer communications, the call recipient also uses TCP port 6901.
All voice traffic also uses User Datagram Protocol (UDP) packets. The user's computer sends and receives UDP packets at port 6901.
Both incoming and outgoing TCP connections use this range of ports: 6891 to 6900. This allows up to 10 simultaneous file transfers per sender. If you open only port 6891, users will be able to do only one file transfer at a time.
To allow users to have a direct connection to instant messaging services through a firewall, instruct them how to:
Open outgoing TCP connections to port 1863 on proxy servers.
Determine which kind of proxy server their networks use (HTTP, SOCKS4, or SOCKS5) and enter the corresponding details (such as server name and port number) on the Connection tab of the Options dialog box.
Make sure that the internal local area network (LAN) has access to the Domain Name System (DNS) servers to resolve the names of external resources.
Try hitting the post reply button and then in there should be a button with http on it click it and put a title in for the link then click ok and then paste the url in and click ok again and then it should work right
If you are using MSN over a network then its unlikely that it will send files without some kind of tweaking. This is because MSN is reallyyyyyyy stupid and will not use the external IP Address of your connection (like ICQ has "always use external ip address" setting). MSN Doesn't
So i had to create a new rule on the server saying that MSN should use external ip address, on these certain ports (6891-6900). Then i could send files no problems.
I presume something similar would have to be put into effect for NAT
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS