Lan connection is up or down

Question

What is the way to find out if the LAN connection is up or down in wince 7 with c++ or c#?

score 1 · Accepted Answer · edited May 23 '17 at 11:47

1

You can use ipConfig command line tool from your c# or c++ application, it provides the status of all network adapters.

This question may be useful: Checking network status in C#

bool networkUp
    = System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable();

edited May 23 '17 at 11:47

Community

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answered Dec 16 '12 at 12:21

Sawan

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I can't access System.Net.NetworkInformation, I added system.dll, I need to add any other dll? – janneob Dec 16 '12 at 13:37
1

this function isn't available in the .NET CF, which is what the author would be using. – pdriegen Dec 17 '12 at 15:49
Always, my simple solutions got reputation! – Sawan Dec 19 '12 at 10:36

score 0 · Answer 2 · answered Dec 16 '12 at 12:23

0

Try this:

try
{
System.Net.IPHostEntry entry = System.Net.Dns.GetHostByName("hostname");
// found host
}
catch(System.Net.Socket.SocketException)
{
//host not found == LAN not connected!
}

answered Dec 16 '12 at 12:23

Obama

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score 0 · Answer 3 · answered Dec 16 '12 at 12:34

0

You can use NetworkChange class in .NET. For Lan connection, use NetworkInterface.GetIsNetworkAvailable() method.

Return Value
Type: System.Boolean
true if a network connection is available; otherwise, false.

Also take a look those;

System.Net.NetworkInformation.NetworkChange.NetworkAvailabilityChanged
System.Net.NetworkInformation.NetworkChange.NetworkAddressChanged

answered Dec 16 '12 at 12:34

Soner Gönül

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I can't access System.Net.NetworkInformation, I added system.dll, I need to add any other dll? – janneob Dec 16 '12 at 13:50
Did you add as a namespace `using System.Net.NetworkInformation;` ? – Soner Gönül Dec 16 '12 at 18:44

Lan connection is up or down

3 Answers3