Comment 5 for bug 1463263

Following some feedback here: http://ubuntuforums.org/showthread.php?t=2281659&p=13301326#post13301326

Setup:
  * remote surfrock66@192.168.1.22 (x-client)
  * local 192.168.1.65 with X-server running
Steps:
1) ssh into a remote system - ssh -p 669 surfrock66@192.168.1.22
2) xhost + 192.168.1.22 # from local machine .65
3) export DISPLAY=192.168.1.65; xterm -sb &

Output:

surfrock66@sr66-blade:~$ export DISPLAY=192.168.1.65
surfrock66@sr66-blade:~$ xterm -sb &
[1] 7050
surfrock66@sr66-blade:~$ xterm: Xt error: Can't open display: 192.168.1.65

These systems are on the same subnet connected to the SAME, unmanaged, switch. No firewalls enabled on either the client or server.

Seems, according to the suggestion in that thread, that it's an X11 bug. I will mark it as such.