ICQ99b and previous versions use UDP 4000 and the new ICQ2000a+ use TCP
5190. you can always check such ports by issuing netstat -a command on
your system.
-- Regards,
-- Masood Nasir :-) [Systems Engineer] - http://www.masood.net ;)
-- One Net, Lahore, Pakistan. <http://www.one.net.pk>
On Wed, 21 Jun 2000, Gary Rose wrote:
> Anybody use ACLs at the Internet access router to block instant
> messenger applications like AOL Instant Messenger, ICQ, etc...?
> Can someone point me to a URL which describes which ports these apps use
> and/or has anyone sniffed these apps to determine which ports they use
> and which would need to be blocked to prevent access to them?
>
>
> TIA
>
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