A more comprehensive code to obtain IP address under asp

The simplest sentence is to use the following:

ip=request.ServerVariables("REMOTE_ADDR")

response.Write(ip)

However, this method is not accurate for proxy servers to access the Internet, so the more comprehensive method is to use the following method:

The code copy is as follows:

<%PrivateFunctiongetIP()

DimstrIPAddr

IfRequest.ServerVariables("HTTP_X_FORWARDED_FOR")=""ORInStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),"unknown")>0Then

strIPAddr=Request.ServerVariables("REMOTE_ADDR")

ElseIfInStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),",",")>0Then

strIPAddr=Mid(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),1,InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),",")-1)

ElseIfInStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),";")>0Then

strIPAddr=Mid(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),1,InStr(Request.ServerVariables("HTTP_X_FORWARDED_FOR"),";")-1)

Else

strIPAddr=Request.ServerVariables("HTTP_X_FORWARDED_FOR")

EndIf

getIP=Trim(Mid(strIPAddr,1,30))

EndFunction

ip=getIP()

response.write(ip)

%>

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