You can't unless you expect it to run on certain ports that you KNOW which
port it uses..
As someone on the list mentioned before:
389 Internet Locator Server (TCP)
522 User Location Server (TCP)
1503 T.120 (TCP)
1720 H.323 call setup (TCP)
1731 Audio call control (TCP)
Anybody can hack a VoIP program to use another port and your rules would be
stuffed. You'd have to support certain VoIP ports and then build your TC
over that.
thanks,
George Vieira
Systems Manager
Citadel Computer Systems P/L
http://www.citadelcomputer.com.au
-----Original Message-----
From: ganesh kumar godavari [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 02 July 2002 1:10 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: Stef Coene
Subject: voice based queuing
hello group,
i want to know if there is any way i can determine using
iptables if the ip packet contains voice?
i want to know this as i want to do some queuing for output
packets and the voice packets are given high preference next
ftp,telnet,ssh.....
i want to know if this is possible using iptables and tc. if so
how. if i can identify the packet to be voice then i can do the
rest using tc.
thanks
ganesh
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