[Asterisk-Users] IAX/IAX2 encryption?

PJ Welsh pj at cassens.com
Mon Nov 10 14:22:43 MST 2003


On Mon, Nov 10, 2003 at 03:26:06PM -0500, Brian J. Schrock wrote:
> 
> I second that, and I think I remember hearing Mark talking about it too. But.....
> 
> What type of encryption can you do that does not introduce latency? 
> 
> That said, I would like it to support hardware encryption cards.
> 
> I have done work with FreeS/WAN and it works, and yes it adds about 30-100ms of latency depending on what else is going on. I think it has something to do with keying.

I don't understand why the latency will be so high. I've run misc test (not with * since I don't have a PBX/voicemail needs with *) and find that I have less issues (more consisten responces and good throughput) with FreeS/WAN. The firewall machines maintain a persistant tunnel. They should be keeping "active" connecitons between servers humming right along. Do you have an overloaded FreeS/WAN server? I even get better results going through FreeS/WAN on one connection to my home (the cable provider seems to like to bandwith throttle the other services to some degree).



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