Ethernet Connection After Flashing

I have a new Jetson TK1 that I am able to successfully flash using JetPack 2.0. However, when it tries to “determine IP address” in order to install CUDA, OpenCV4Tegra, etc, it fails. When I run “sudo arp” on my Ubuntu host machine, I cannot find the eth0 interface to which my Jetson is connected, and thus I cannot find the IP I need to use to SSH into the Jetson.

Any help would be greatly appreciated!

It sounds like the Jetson itself installed ok. On the Jetson, what is the output of “ifconfig”?