PfSense with two WANs, routing Skype traffic over a specific WAN

pfsensepolicy-routingskypewide-area-network

I have a pfSense setup with two WANs (WAN1 and WAN2) and one LAN network. The two WANs are setup for failover.

However, QoS has recently been an issue for Skype calls in our office (about 30 people) so we want to dedicate WAN2 for Skype traffic (we use Skype for all VOIP calls, etc.)

As Skype is notoriously difficult to deal with, does anyone have any suggestions on how I should deal with this? A simple rule based on ports will not work, and using layer 7 inspection with a Skype profile on all incoming LAN packets doesn't seem like the way to go either. Here is a related pfSense forum post: Multi-WAN, single LAN; Route VOIP/Skype traffic over one WAN

Best Answer

From what I understand, the only traffic shaping library that successfully classifies Skype traffic is nDPI which is included with nTop. http://www.ntop.org/products/ndpi/

How can this interface with pfSense? I'm not sure, but they're both open-source projects, so perhaps you can convince one to work with the other through a bounty!