Minor Description
If the discovery URI for a remote service group is 'localhost' then remote clients should not be able to see it.
A server may want to only be visible to local clients, yet still advertise on multicast.
Currently one of two things may happen on a remote client call:
1. A connection to the remote service group fails, as clients actually try to connect the themselves (localhost)..
2. More serious - If the remote client 'also' has a locally configured service on the same port then a connection is made to the service irrelevant of the group when in fact the connection should fail.
