They're listed in the reddit post, but they're eth0, eth1, wlan0.   I tried the ifconfig commands as well as manually configuring the network prior to posting.

I was hoping to get booted up to a usable PPC big endian platform for troubleshooting the aforementioned LMMS issue.  If this is possible with another common hardware setup, I'm fine switching gears.  I obtained this machine with the sole purpose of helping debug LMMS's sound on big endian, so the hardware isn't as important as the ability to reproduce the big endian bug report. :)