IPAddress Class [RESOLVED]

In VB6, I used to be able to create an IP address string from a long value by using the following statement/API call:

Code:

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lpStr = inet_ntoa(lngAddress)

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Then I would read the string from the pointer returned to get the IP address in dotted quad format.

I am trying to port this to VB.NET using the following code:

Code:

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Dim oIP As New IPAddress(lngAddress)
strData = oIP.ToString

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Usually this works, sometimes not. For example, if lngAddres = -156482353 (msn.com), I get the following exception: "Specified argument was out of the range of valid values."

Anyone have any idea what I may be doing wrong? The old API way returned the proper value = 207.68.172.246.

Brad

This may seem kind of goofy but it was the only workaround I could find. I tried to pass the byte array created from the long in the first line, burt that just causes a completely useless error message "Additional Information: address". So this was all I could come up with

Code:

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        Dim b As Byte() = System.BitConverter.GetBytes(-156482353)
        Dim ip As String
        ip = b(0) & "." & b(1) & "." & b(2) & "." & b(3)
        Dim a As System.Net.IPAddress = System.Net.IPAddress.Parse(ip)

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Cander;

You are right - that is one heck of a hack! Works, though - many thanks!

Brad

You're welcome. I guess the IPAddress class must be a bit buggy. :o