[asterisk-users] OpenVPN over TCP 1194 rather than UDP 1194 - Is there an adverse effect when running Asterisk?

[Tilghman Lesher]

On Friday 22 October 2010 09:02:13 Bruce B wrote:
> For some reason a few phones connected to a pfSense box can't make or
> allow in OpenVPN in port 1194 UDP. So, I established the VPN tunnel on
> 1194 TCP and it works fine. I would like to know if there is any
> disadvantages to using TCP over UDP for the tunnel when using Asterisk
> or is just as reliable and solid as a UDP tunnel?

Yes, there is.  For the same reason why RTP runs over UDP, not TCP:
congestion control wreaks havoc with realtime communications.  I'd really
recommend figuring out why UDP is not working for you, instead of trying to
use TCP for voice communications.

-- 
Tilghman Lesher
Digium, Inc. | Senior Software Developer
twitter: Corydon76 | IRC: Corydon76-dig (Freenode)
Check us out at: www.digium.com & www.asterisk.org