gyoza on 5 Aug 2006 17:13:25 -0000


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Re: [PLUG] Vonage Ports


Stephen Gran wrote:
On Fri, Aug 04, 2006 at 03:04:06PM -0400, gyoza@comcast.net said:
Can anyone tell me exactly which ports Vonage uses? Could Vonage actually require ports 10,000 to 20,000?!

The sip protocol uses one port for control processing, and another
10,000 for data passing. Roughly at random. It absolutely blows chunks
for firewalling. I think there should be a rule that a large group of
professional sysadmins need to be consulted before publishing an RFC.

Hahaha, I think so! I'm wondering...if I were to block out going ports 10,000 to 19,999, would Vonage then be forced to use only port 20,000? (I'm setting up a test PC now.)
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