How to use 1 macbook Nomad with two network connections? OSC + sACN

I have two macbook pro's. One I use for Qlab and one I use for ETC Nomad software. To make a connection between the two laptops is no problem. And to send OSC from Qlab( macbook1) to Nomad(macbook2) by an ethernet cable is no problem. But how can I send out sACN or Artnet from my Nomad? Then I need to have to networks running at the same time. Or am I wrong?

Can anyone help me out here? 

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