Start an instance on a rhevm provider through conductor deployables and the instance displays the MAC address instead of the IP. Turns out that this is what is being displayed by deltacloud core.
I opened a bug with them as follow and Wes asked for a tracker here.
https://issues.apache.org/jira/browse/DTACLOUD-56
Spoke to someone in the #rhev-dev irc channel and confirmed that there is no rhev tools for linux in v2.2.
rhev-tools for linux will become available in rhev v3.0 which is scheduled for external beta aug 2011 and full GA in December.
Is there a requirement on which version Cloud-Engine will support?
Moving back to development...
In our testing we found a work-around for RHEV 2.2. Using the "arp-scan" tool in Fedora, we scanned our local network and grep'd for the MAC:
$ sudo arp-scan --localnet | grep -i 8c:0a
10.16.143.146 00:1a:4a:10:8c:0a Qumranet Inc.