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I looked at some IP restriction functions and found them too complicated. So, I tried to write one, which is relatively simple. Netizens please refer to this guide. Thanks! ~
Code copy box <% 'Get the visitor's address ip=Request.ServerVariables("REMOTE_ADDR") 'The allowed IP address range is 10.0.0.0~10.68.63.255 allowip1="10.0.0.0" allowip2="10.68.10.71" response.write checkip (ip,allowip1,allowip2) function checkip(ip,allowip1,allowip2) dim check(4) checkip=false ipstr=split(ip,".") allow1=split(allowip1,".") allow2=split(allowip2, ".") if cint(allow1(0))>cint(allow2(0)) then 'Judge whether the IP address segment is legal response.write "The IP address segment is wrong!" exit function end if for i=0 to ubound(ipstr ) if cint(allow1(i))<cint(allow2(i)) then if cint(allow1(i))=cint(ipstr(i)) then check(i)=true checkip=true exit for else if cint( ipstr(i))<cint(allow2(i)) then check(i)=true checkip=true exit for else if cint(ipstr(i))>cint(allow2(i)) then check(i)=false checkip =false exit for else check(i)=true checkip=true end if end if end if else if cint(allow1(i))>cint(ipstr(i)) or cint(allow1(i))<cint(ipstr( i)) then check(i)=false checkip=false if i<>ubound(ipstr) then exit for end if else check(i)=true end if end if next if (check(0)=true and check(1 )=true and check(2)=true and check(3)=false) and (cint(allow2(2))>cint(ipstr(2))) then checkip=true end if end function %>
