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Network Security Firewalls
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Re: Blocking Skype

Subject: Re: Blocking Skype
Date: Mon, 21 Nov 2005 08:52:50 +0100
Volker Tanger wrote:
Nice writeup. But why? Why block Skype? It it really worse than MSN or
GoogleTalk?

For one you can't be sure what the program actually does - or did I miss someone doing a reverse engineering, esp. of the protocol and the "P2P" part?

I would be interested in this...

In contrast Text-IM uses a number of magnitudes less bandwidth.

Sure, bandwidth is an issue, and it's probably hard to bandwidth-control/traffic shape Skype. But GoogleTalk can also do voice, and there are other voice programs out there.


But as many has pointed out, you will also get traffic that does not belong to the end-client within your network. That is a negative aspect in this setting. Do we know what kind of traffic that flows in the node/supernode topology that Skype setups? I was unaware that actual voice traffic can flow through any node.

--

//Morten Torstensen
//Email: morten@mortent.org
//IM: Cartoon@jabber.no morten.torstensen@gmail.com

If you ever go temporarily insane, don't shoot somebody, like a lot of
people do. Instead, try to get some weeding done, because
you'd really be surprised.

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