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 ("

response.end

end if