如何检查单元格是否包含有效的IPv6地址？

Question

我必须检查VBA excel，单元格值是否是有效的IPv6地址。 IPv6地址如下所示：

  

2001：0000：3238：DFE1：0063：0000：0000：FEFB

使用简短形式的IPv6这样的问题：

  

dec0 :: 0A68：0300

这也是一个有效的IPv6地址。

我该如何妥善处理？

Answer 1

如果您使用Microsoft VBScript Regular Expressions 5.5，则可以使用此thread中的正则表达式将其合并到VBA中。库（在VB编辑器中使用Tools-＆gt; References找到它）。代码如下 - 疯狂的正则表达式！

Option Explicit

Function IsIPv6(ByVal strIn As String) As Boolean

    Dim objRegex As New RegExp
    Dim strPattern As String

    strPattern = "(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,7}:|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|"
    strPattern = strPattern & "[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|"
    strPattern = strPattern & ":((:[0-9a-fA-F]{1,4}){1,7}|"
    strPattern = strPattern & ":)|"
    strPattern = strPattern & "fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|"
    strPattern = strPattern & "::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|"
    strPattern = strPattern & "(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|"
    strPattern = strPattern & "1{0,1}[0-9]){0,1}[0-9])|"
    strPattern = strPattern & "([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|"
    strPattern = strPattern & "(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|"
    strPattern = strPattern & "(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))"

    objRegex.Pattern = strPattern
    IsIPv6 = objRegex.Test(strIn)

End Function

Sub Test()

    Debug.Print IsIPv6("2001:0000:3238:DFE1:0063:0000:0000:FEFB")
    Debug.Print IsIPv6("dec0::0A68:0300")
    Debug.Print IsIPv6("foo")

End Sub

将此代码放在Module中，然后您可以在Worksheet中使用此功能：

Answer 2

你能ping一下地址吗？如果是这样，您可以使用Win32_PingStatus尝试解析IP，这适用于IPv4，v6或甚至只是主机名。像这样：

Function IsValidIP(strHost As String) As Boolean

Dim strQuery As String
strQuery = "select * from Win32_PingStatus where Address = '" & strHost & "'"

Dim colItems As Object
Set colItems = GetObject("winmgmts://./root/cimv2").ExecQuery(strQuery)

IsValidIP = False

Dim objItem As Object
For Each objItem In colItems
    If IsObject(objItem) Then
        If objItem.PrimaryAddressResolutionStatus = 0 Then
            IsValidIP = True
            Exit Function
        Else
            'Could do select case here to handle other return codes.
        End If
    End If
Next

End Function