代码拷贝框
<%‘’获取访问者的地址ip=Request.ServerVariables("REMOTE_ADDR") ‘’允许的IP地址段为10.0.0.0～10.68.63.255allowip1="10.0.0.0"allowip2="10.68.10.71"response.write checkip(ip,allowip1,allowip2)function checkip(ip,allowip1,allowip2)dim check(4)checkip=falseipstr=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 functionend iffor i=0 to ubound(ipstr)if cint(allow1(i))<cint(allow2(i)) thenif cint(allow1(i))=cint(ipstr(i)) thencheck(i)=truecheckip=trueexit forelseif cint(ipstr(i))<cint(allow2(i)) thencheck(i)=truecheckip=trueexit forelseif cint(ipstr(i))>cint(allow2(i)) thencheck(i)=falsecheckip=falseexit forelsecheck(i)=truecheckip=trueend ifend ifend ifelseif cint(allow1(i))>cint(ipstr(i)) or cint(allow1(i))<cint(ipstr(i)) thencheck(i)=falsecheckip=falseif i<>ubound(ipstr) thenexit forend ifelsecheck(i)=trueend ifend ifnextif (check(0)=true and check(1)=true and check(2)=true and check(3)=false) and (cint(allow2(2))>cint(ipstr(2))) thencheckip=trueend ifend function%>
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