How to convert ipaddress to an integer

How can I convert an ip address to an integer for more efficient storage and back to an ip address.
kevinr188.Net DeveloperAsked:
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jvfernandezCommented:
Declarations:

Public Type myBytes
    B1 As Byte
    B2 As Byte
    B3 As Byte
    B4 As Byte
End Type

Public Type myLong
    Val As Long
End Type


Code:
Public Function IP2Long(IP As String) As Long
    ReDim parse(0 To 3) As String
    Dim B As myBytes
    Dim L As myLong
    parse = Split(IP, ".")
    B.B1 = Val(parse(0))
    B.B2 = Val(parse(1))
    B.B3 = Val(parse(2))
    B.B4 = Val(parse(3))
    LSet L = B
    IP2Long = L.Val
End Function

Public Function Long2IP(ByVal IP As Long) As String
    Dim L As myLong
    Dim B As myBytes
    L.Val = IP
    LSet B = L
    Long2IP = Trim(Str$(B.B1)) + "." + Trim(Str$(B.B2)) + "." + Trim(Str$(B.B3)) + "." + Trim(Str$(B.B4))
End Function
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Atdhe NuhiuCommented:
             Public Function IPAddressToNumber(ByVal  IPaddress As String) As  Double
    Dim i As  Integer
    Dim arrDec As  String()
    Dim num As  Double = 0
    If IPaddress = "" Then
        Return 0
    Else
        arrDec = IPaddress.Split("."c)
        For i = arrDec.Length - 1 To 0 Step -1
            num += ((Integer.Parse(arrDec(i)) Mod  256) * Math.Pow(256, (3 - i)))
        Next
        Return num
    End If
End Function
     
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lazyberezovskyCommented:
How to use .Net framework classes properly:
// C#
long ipLong = IPAddress.Parse("192.165.1.1").Address;
string ipString = new IPAddress(ipLong).ToString();

'VB
Dim ipLong As Long = IPAddress.Parse("192.165.1.1").Address
Dim ipString As String = New IPAddress(ipLong).ToString()

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