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Check if connection to website is from external source

Posted on 2014-01-02
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Last Modified: 2014-01-02
I want to check if a user is connecting to a site from our intranet or outside of it and redirect them if they are coming from outside.
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Question by:UnderSeven
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sammySeltzer earned 2000 total points
ID: 39751525
This is how I owuld approach it.

'Create a variable to hold your IP address.  

Dim ipAddress As String = ""


'Retrieve the user's ip address from Page_Load():

ipAddress = Request.ServerVariables("REMOTE_ADDR")

'Then compare the retrieved IP address to the subnet for your network which is usually "192.168.0"  or whatever it is. You can find out from your network admins.

If ipAddress.Contains("192.168.0") Then
	Response.Write("an internal user ")
Else
	Response.Redirect("someplace else")
End If

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Author Closing Comment

by:UnderSeven
ID: 39751865
Yep worked just fine.
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LVL 29

Expert Comment

by:sammySeltzer
ID: 39751890
Congrats and thanks for the points.
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