| 〈% ’获取访问者的地址 ip=Request.ServerVariables("REMOTE_ADDR") ’允许的IP地址段为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 ’判断IP地址段是否合法 response.write "IP地址段出错！" 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 %〉 |
文章评论
评论内容只代表网友观点，与本站立场无关！ 查看更多评论