Yeah, you're missing the iscsi part. Means the 'drives' are on a different system on the other end of a network link.
Heh, thought you were trying to export those discs *on* the iSCSI server and couldn't see them there, my bad :)
'iscsiadm -m discovery -p <ip of target>' wont give the target name, you need 'iscsiadm --mode discovery --type sendtargets --portal <ip of target>'
You also need to pass tcp 3260 through the firewall on the target, I have never used RH's target, does it do this for you? Iet allows you to define allowed/denied clients, does RH's?
jlc