dw

<?// IP address is 10.1.0.1/29$splitip = explode('$ipaddress', '/', 1);$splitip = explode(".", $splitip);$octet1 = $splitip[0];$octet2 = $splitip[1];$octet3 = $splitip[2];$octet4 = $splitip[3];                $splitmask = explode("/", $ipaddress);$mask = $splitip[0];          if ($mask == '29') {    $remain = "4";                } elseif ($mask == '28') {      $remain = "13";       } elseif ($mask == '27') {$remain = "29";           } elseif ($mask == '26') {$remain = "61";         } elseif ($mask == '25') {$remain = "125";} elseif ($mask == '24') {$remain = "253";}$startip = "$octet1.$octet2.$octet3.$octet4";  $endoctet4 = $octet4 + $remain;$endip = "$octet1.$octet2.$octet3.$endoctet4";?>