[75328] in North American Network Operators' Group
Re: How to Blocking VoIP ( H.323) ?
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Thu Nov 11 13:23:30 2004
To: Joe Shen <joe_hznm@yahoo.com.sg>
Cc: NANGO <nanog@merit.edu>
In-Reply-To: Your message of "Thu, 11 Nov 2004 19:40:29 +0800."
<20041111114029.70937.qmail@web53602.mail.yahoo.com>
From: Valdis.Kletnieks@vt.edu
Date: Thu, 11 Nov 2004 13:22:57 -0500
Errors-To: owner-nanog-outgoing@merit.edu
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On Thu, 11 Nov 2004 19:40:29 +0800, Joe Shen said:
> How could it be done to block VoIP at access router?
What business issue/problem are you trying to address by
blocking VoIP? Since there's so many different things out
there (H.323, Skype, the various IM software), a "proper"
solution probably depends on what you're actually trying
to accomplish. Consider:
1) Your problem is a wonky broken H.323 that dies when it
gets a connection from outside.
2) Your problem is "corporate insider uses VoIP to call a
competitor and leak trade secrets".
3) Your problem is "VoIP users bypassing billing for telephone calls".
All three will require different solutions, and there's probably
other scenarios as well.....
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