[75383] in North American Network Operators' Group
Re: How to Blocking VoIP ( H.323) ?
daemon@ATHENA.MIT.EDU (Simon Leinen)
Fri Nov 12 11:26:34 2004
To: Robert Mathews <mathews@HAWAII.EDU>
Cc: NANOG <nanog@merit.edu>
From: Simon Leinen <simon@limmat.switch.ch>
In-Reply-To: <Pine.GSO.4.58a.0411110756001.3055@uhunix2> (Robert Mathews's
message of "Thu, 11 Nov 2004 08:42:08 -1000 (HST)")
Date: Fri, 12 Nov 2004 17:26:01 +0100
Errors-To: owner-nanog-outgoing@merit.edu
Robert Mathews writes:
> On Thu, 11 Nov 2004, Alexei Roudnev wrote:
>> Hmm - just introduce some jitter into your network, and add random
>> delay to the short packets - and no VoIP in your company -:).
> Alexei:
> How exactly then would anyone implement this, without screwing-up the
> overall performance elements in the network? :)
Yeah, no jitter for HTTP please (otherwise users will complain when
they tunnel their VoIP traffic over TCP port 80 :-).
Note that Skype already uses TCP port 80 and 443, at least for control
traffic.
--
Simon.
