I've noticed that using OpenVPN for Voice over IP connectivity severely impacts performance. I have a box sitting on my LAN that I can connect directly to, or through a pfSense box via OpenVPN. When connecting direct, call quality is perfect and asterisk reports perfect connectivity via 'sip show peers' as follows:
Name/username Host Dyn Nat ACL Port Status 105/105 xxx.xx.xx.71 D N 54238 OK (3 ms) However, when I connect via the OpenVPN tunnel, I'm getting horrible call quality (choppiness, garbling, etc). Running the same command I see this: Name/username Host Dyn Nat ACL Port Status 105/105 172.30.30.6 D N 54238 OK (123 ms) OpenVPN added 120ms of latency and quite a bit of jitter as well. Connectivity through the pfSense box without using OpenVPN shows no interference so I'm comfortable saying it isn't a bad NIC, cable, etc... I've tried both UDP and TCP tunnels with the same result. The setup is nothing special, just plain old SIP to an Asterisk box using G.711u codec. Any ideas on what I can do to decrease the effect OpenVPN is having on the traffic? All suggestions welcome and appreciated! --- Tim Nelson RockBochs Inc. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
