[omniORB] Localhost endpoint: 3.0.4 vs 4.1.0

[Mike Richmond]

We've recently moved a product from omniORB 3.0.4 to omniORB 4.1.0 
and are observing a change in behaviour.

With 3.0.4 we initialised the orb with "-ORBpoa_iiop_name_port 
localhost:1234".  Using a port scanning utility we can see port 1234 
is open on addresses 0.0.0.0, 127.0.0.1 and the machine's IP address 
(say 172.1.2.3).

With 4.1.0 we initialise the orb with "endPoint 
giop:tcp:localhost:1234".  We now see that port 1234 is open on 
addresses 0.0.0.0 and 127.0.0.1, but not on 172.1.2.3.  Is this 
expected behaviour?  Do we need a second endPoint  to specify 
172.1.2.3?  Or should we be using "giop:tcp::1234", which seems to 
give the 3.0.4 behaviour?

FWIW we have compiled omniORB 4.1.0 with IPv6 disabled.

Mike Richmond
Global Graphics Software Ltd