VoIP, VPN, QoS : IPSec or OpenVPN?

[thomas7467]

Hi all,

We want to connect 4 sites with VPN with  PFSENSE software.

On central site, we have a data server and Alcatel OmniPCX - remote sites will hosts PC & IP Phones, who access data server and IPBX through VPN.

What would be the best choise for VPN : OpenVPN or IPSEC?

PCs will access Internet through WAN interface. I need probably to use QoS to priorise Voip flow against data flow through VPN.

Thanks for your feedbacks,

Thomas

[Derelict]

I am curious about the answer to this, too.

This is a difficult problem because you have two QoS issues.  The first is the prioritization of VPN traffic over the WAN with the other WAN traffic.  The second is prioritization of VoIP within the VPN tunnel.

I have not tried this yet, but I think the only way you are going to be able to even attempt to apply QoS to different traffic in the VPN tunnel is with OpenVPN and assigned interfaces.

Take a look at this: https://forum.pfsense.org/index.php?topic=64439.0

[thomas7467]

Hi,

I've just configured my 4 OpenVPN servers, with 4 different ports.

Next step  : I've created 4 "virtual" interfaces (Interfaces -> assign), with network ports ovpns1(), ovpns2(),…

I think I can use Traffic Shaper & Queues to priorize trafic inside my VPNs through my interfaces (next step), but now i'm looking how to priorize packets between my VPN interfaces...

Any ideas?

Thank you,

Best regards,
Thomas

[Derelict]

What do you mean by prioritize between the interfaces?

You can shape traffic going out an interface.