One of the correct ip's for the servers in my 192.168.1.x subnet......
When I said 'Try Again' it would cycle through the correct addresses for each of my servers.
Also tried taking two of the servers offline with the same 'not configured' result.
But I do think I figured it out (or at least narrowed it down). When I said 'firewall' it was really an oversimplification. What I am working on is a lan isolation scheme for a router where there is no native vlan support. I'm defining layer2 rules (ebtables) to control access between each of the physical interfaces. So it starts out that all tcp traffic is blocked between each interface and I need to explicitly allow any traffic (DNS, mDNS, Bonjour, Samba, etc). Right now I'm not filtering any other protocol besides tcp.
So, knowing your Apple roots, I started adding tcp ports for Apple services. Not sure if it's definitive, but opening the ports for Xsan filesystem support fixed things up. Don't know if it matches anything you recognize, but I'll consider this solved.