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Message from discussion Quick way to see if a Computer is on the LAN without a Ping
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Philip K  
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 More options May 19 2006, 9:48 am
Newsgroups: microsoft.public.dotnet.framework
From: Philip K <Phil...@discussions.microsoft.com>
Date: Thu, 18 May 2006 16:48:01 -0700
Local: Fri, May 19 2006 9:48 am
Subject: Quick way to see if a Computer is on the LAN without a Ping
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I need a quick responsive (say 100ms) way to check if a computer is on the
LAN from a .NET program that is run by a low level user.

Is there a way?

Apparently Ping (ICmp over raw socket) can only be done by an admin user -
so I am told.
I am am running with these permissions:
[assembly: PermissionSetAttribute(SecurityAction.RequestMinimum, Name =
"LocalIntranet")]
[assembly: SocketPermissionAttribute(SecurityAction.RequestMinimum,
Unrestricted=true)]


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