> Hi,
>
[quoted text clipped - 10 lines]
> automatically recognizes intranet connection so it doesn't go out and back
> in into the network ?
This is entirely outside the scope of a web service. It's actually a
routing issue. If your clients are part of the same subnet as the
server hosting the web service, the client will not leave your local
intranet. If the server hosting the web service is on a separate subnet
from your clients, it's possible --albeit *highly* unlikely because of
the complexity that would be involved-- based on how your routing is
configured.
If you're not familiar with your network topology, speak with your
network administrator. If you are the network administrator (and even
if you're not because of the wealth of information you can obtain), I'd
suggest reading some books on routing.
Hope that helps,

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Sean