限制某段IP地址

2022-07-15 80酷酷网 80kuku.com

　　ip地址|ip地址

function IP2Num(sip)
dim str1,str2,str3,str4
dim num
IP2Num=0
if isnumeric(left(sip,2)) then
  str1=left(sip,instr(sip,".")-1)
  sip=mid(sip,instr(sip,".")+1)
  str2=left(sip,instr(sip,".")-1)
  sip=mid(sip,instr(sip,".")+1)
  str3=left(sip,instr(sip,".")-1)
  str4=mid(sip,instr(sip,".")+1)
  num=cint(str1)*256*256*256+cint(str2)*256*256+cint(str3)*256+cint(str4)-1
  IP2Num = num
end if
end function

function Num2IP(nip)
iip1 = int(nip/256/256/256)
iip2 = int((nip-iip1*256*256*256)/256/256)
iip3 = int((nip-iip1*256*256*256-iip2*256*256)/256)
iip4 = int((nip-iip1*256*256*256-iip2*256*256-iip3*256) mod 256)
iip0 = iip1 &"."& iip2 & "." &iip3 &"."& iip4
Num2IP = iip0
end function

userIPnum = IP2Num(Request.ServerVariables("REMOTE_ADDR"))

if userIPnum > IP2Num("192.168.0.0") and userIPnum < IP2Num("192.168.0.255") then
response.write ("<center>您的IP被禁止</center>")
response.end
end if