OSX Network: Incoming traffic interface and outgoing traffic interface are not the same

[juliengarcia]

I'm on OSX El Capitan / Yosemite, and I've a strange behavior.

I have the ethernet and Wifi interface enabled. The network interface order is set to WiFi then Ethernet, due to some proxy limitation on our internal network.

I'm connecting to my mac with the ethernet ip to our web server, there is a redirection and the reply go through the Wifi interface instead of Ethernet interface.

If I switch the network interface order to the Ethernet then Wifi, it's working.

Do you have an idea how to fix that?

Thanks