Networking ignoramus - unable to transfer files via MSN Messenger through firewall at home

[The Sauce]

I apologize for being such a retard. I've gone so far as to go to Border's and read networking books and still can't find the answer to this one. The question is not so much how to open ports in the router (SMC Barricade) as it is how to figure out which port the Messenger Service is trying to use. Any help would be appreciated.

 

[reicherb]

from a google search:

To enable file transfers, enable both incoming and outgoing TCP connections to the 6891-6900 range of TCP ports. This allows each sender to perform up to 10 simultaneous file transfers. Note that if only TCP port 6891 is open, users are only able to perform one file transfer at a time.

 

[acidvoodoo]

i read some where that it is very difficult, or maybe not possible, to send files from behind a router. i read this on some sort of website about msn messenger. it said that it used some sort of microsoft only protocol, and only worked with the built in windows xp firewall. i could be wrong though. but i have had, and still have the same problem as u

 

[bigshooter]

http://help.microsoft.com/EN_US/HelpWindow_msg.asp?INI=msgr_xpv47.ini&H_VER=1.7&SearchTerm=nogol&S_Text=For%20help%20on%20Windows%20Messenger,%20click%20a%20topic%3A&H_APP=Windows%20Messenger&Filter=xp

from teh bottom of the page


<P class=otherh>Note
File transfer may not work if you are behind a network address translation (NAT) device