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<?php
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/*
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vpn_pptp.php
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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require("guiconfig.inc");
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if (!is_array($config['pptpd']['radius'])) {
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$config['pptpd']['radius'] = array();
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}
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$pptpcfg = &$config['pptpd'];
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$pconfig['remoteip'] = $pptpcfg['remoteip'];
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$pconfig['localip'] = $pptpcfg['localip'];
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$pconfig['redir'] = $pptpcfg['redir'];
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$pconfig['mode'] = $pptpcfg['mode'];
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$pconfig['wins'] = $pptpcfg['wins'];
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$pconfig['req128'] = isset($pptpcfg['req128']);
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$pconfig['radiusenable'] = isset($pptpcfg['radius']['enable']);
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$pconfig['radiusissueips'] = isset($pptpdcfg['radius']['radiusissueips']);
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$pconfig['radiussecenable'] = isset($pptpcfg['radius']['secenable']);
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$pconfig['radacct_enable'] = isset($pptpcfg['radius']['accounting']);
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$pconfig['radiusserver'] = $pptpcfg['radius']['server'];
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$pconfig['radiussecret'] = $pptpcfg['radius']['secret'];
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$pconfig['radiusserver2'] = $pptpcfg['radius']['server2'];
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$pconfig['radiussecret2'] = $pptpcfg['radius']['secret2'];
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$pconfig['n_pptp_units'] = $pptpcfg['n_pptp_units'];
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$pconfig['pptp_subnet'] = $pptpcfg['pptp_subnet'];
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$pconfig['radius_acct_update'] = $pptpcfg['radius_acct_update'];
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$pconfig['radius_nasip'] = $pptpcfg['radius_nasip'];
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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/* input validation */
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if ($_POST['mode'] == "server") {
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$reqdfields = explode(" ", "localip remoteip");
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$reqdfieldsn = explode(",", "Server address,Remote start address");
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if ($_POST['radiusenable']) {
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$reqdfields = array_merge($reqdfields, explode(" ", "radiusserver radiussecret"));
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$reqdfieldsn = array_merge($reqdfieldsn,
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explode(",", "RADIUS server address,RADIUS shared secret"));
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}
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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if (($_POST['localip'] && !is_ipaddr($_POST['localip']))) {
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$input_errors[] = "A valid server address must be specified.";
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}
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if (($_POST['subnet'] && !is_ipaddr($_POST['remoteip']))) {
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$input_errors[] = "A valid remote start address must be specified.";
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}
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if (($_POST['radiusserver'] && !is_ipaddr($_POST['radiusserver']))) {
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$input_errors[] = "A valid RADIUS server address must be specified.";
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}
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if (!$input_errors) {
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$_POST['remoteip'] = $pconfig['remoteip'] = gen_subnet($_POST['remoteip'], $g['pptp_subnet']);
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$subnet_start = ip2long($_POST['remoteip']);
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$subnet_end = ip2long($_POST['remoteip']) + $g['n_pptp_units'] - 1;
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if ((ip2long($_POST['localip']) >= $subnet_start) &&
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(ip2long($_POST['localip']) <= $subnet_end)) {
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$input_errors[] = "The specified server address lies in the remote subnet.";
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}
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if ($_POST['localip'] == $config['interfaces']['lan']['ipaddr']) {
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$input_errors[] = "The specified server address is equal to the LAN interface address.";
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}
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}
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} else if ($_POST['mode'] == "redir") {
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$reqdfields = explode(" ", "redir");
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$reqdfieldsn = explode(",", "PPTP redirection target address");
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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if (($_POST['redir'] && !is_ipaddr($_POST['redir']))) {
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$input_errors[] = "A valid target address must be specified.";
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}
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} else {
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/* turning pptp off, lets dump any custom rules */
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$rules = &$config['filter']['rule'];
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for($x=0; $x<count($rules); $x++) {
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if($rules[$x]['interface'] == "pptp") {
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unset($rules[$x]);
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}
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}
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unset($config['pptpd']['mode']);
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write_config();
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}
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if (!$input_errors) {
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$pptpcfg['remoteip'] = $_POST['remoteip'];
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$pptpcfg['redir'] = $_POST['redir'];
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$pptp['localip'] = $_POST['localip'];
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$pptpcfg['mode'] = $_POST['mode'];
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$pptpcfg['wins'] = $_POST['wins'];
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$pptpcfg['n_pptp_units'] = $_POST['n_pptp_units'];
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$pptpcfg['pptp_subnet'] = $_POST['pptp_subnet'];
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$pptpcfg['radius']['server'] = $_POST['radiusserver'];
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$pptpcfg['radius']['secret'] = $_POST['radiussecret'];
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$pptpcfg['radius']['server2'] = $_POST['radiusserver2'];
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$pptpcfg['radius']['secret2'] = $_POST['radiussecret2'];
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$pptpcfg['radius_nasip'] = $_POST['radius_nasip'];
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$pptpcfg['radius_acct_update'] = $_POST['radius_acct_update'];
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if($_POST['req128'] == "yes")
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$pptpcfg['req128'] = true;
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else
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unset($pptpcfg['req128']);
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if($_POST['radiusenable'] == "yes")
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$pptpcfg['radius']['enable'] = true;
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else
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unset($pptpcfg['radius']['enable']);
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if($_POST['radiussecenable'] == "yes")
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$pptpcfg['radius']['secenable'] = true;
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else
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unset($pptpcfg['radius']['secenable']);
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if($_POST['radacct_enable'] == "yes")
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$pptpcfg['radius']['accounting'] = true;
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else
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unset($pptpcfg['radius']['accounting']);
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if($_POST['radiusissueips'] == "yes") {
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$pptpcfg['radius']['radiusissueips'] = true;
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} else
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unset($pptpcfg['radius']['radiusissueips']);
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write_config();
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$retval = 0;
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config_lock();
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$retval = vpn_setup();
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config_unlock();
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$savemsg = get_std_save_message($retval);
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filter_configure();
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}
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}
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$pgtitle = "VPN PPTP";
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<p class="pgtitle"><?=$pgtitle?></p>
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<script language="JavaScript">
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<!--
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function get_radio_value(obj)
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{
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for (i = 0; i < obj.length; i++) {
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if (obj[i].checked)
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return obj[i].value;
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}
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return null;
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}
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function enable_change(enable_over) {
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if ((get_radio_value(document.iform.mode) == "server") || enable_over) {
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document.iform.remoteip.disabled = 0;
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document.iform.localip.disabled = 0;
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document.iform.req128.disabled = 0;
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document.iform.radiusenable.disabled = 0;
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document.iform.wins.disabled = 0;
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document.iform.n_pptp_units.disabled = 0;
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document.iform.pptp_subnet.disabled = 0;
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if (document.iform.radiusenable.checked || enable_over) {
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document.iform.radiussecenable.disabled = 0;
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document.iform.radacct_enable.disabled = 0;
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document.iform.radiusserver.disabled = 0;
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document.iform.radiussecret.disabled = 0;
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document.iform.radius_nasip.disabled = 0;
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document.iform.radius_acct_update.disabled = 0;
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document.iform.radiusissueips.disabled = 0;
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} else {
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document.iform.radacct_enable.disabled = 1;
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document.iform.radiusserver.disabled = 1;
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document.iform.radiussecret.disabled = 1;
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document.iform.radius_nasip.disabled = 1;
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document.iform.radius_acct_update.disabled = 1;
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document.iform.radiusissueips.disabled = 1;
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}
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if (document.iform.radiussecenable.checked || enable_over) {
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document.iform.radiusserver2.disabled = 0;
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document.iform.radiussecret2.disabled = 0;
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} else {
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document.iform.radiusserver2.disabled = 1;
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document.iform.radiussecret2.disabled = 1;
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}
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} else {
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document.iform.remoteip.disabled = 1;
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document.iform.localip.disabled = 1;
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document.iform.req128.disabled = 1;
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document.iform.n_pptp_units.disabled = 1;
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document.iform.pptp_subnet.disabled = 1;
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document.iform.radiusenable.disabled = 1;
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document.iform.radacct_enable.disabled = 1;
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document.iform.radiusserver.disabled = 1;
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document.iform.radiussecret.disabled = 1;
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document.iform.radius_nasip.disabled = 1;
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document.iform.radius_acct_update.disabled = 1;
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document.iform.radiussecenable.disabled = 1;
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document.iform.radiusserver2.disabled = 1;
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document.iform.radiussecret2.disabled = 1;
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document.iform.wins.disabled = 1;
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document.iform.radiusissueips.disabled = 1;
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}
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if ((get_radio_value(document.iform.mode) == "redir") || enable_over) {
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document.iform.redir.disabled = 0;
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} else {
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document.iform.redir.disabled = 1;
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}
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}
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//-->
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</script>
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<form action="vpn_pptp.php" method="post" name="iform" id="iform">
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<?php if ($savemsg) print_info_box($savemsg); ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr><td class="tabnavtbl">
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<?php
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$tab_array = array();
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$tab_array[0] = array("Configuration", true, "vpn_pptp.php");
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$tab_array[1] = array("Users", false, "vpn_pptp_users.php");
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display_top_tabs($tab_array);
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?>
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</td></tr>
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<tr>
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<td>
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<div id="mainarea">
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<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input name="mode" type="radio" onclick="enable_change(false)" value="off"
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<?php if (($pconfig['mode'] != "server") && ($pconfig['mode'] != "redir")) echo "checked";?>>
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Off</td>
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input type="radio" name="mode" value="redir" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "redir") echo "checked"; ?>>
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Redirect incoming PPTP connections to:</td>
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<tr>
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<td width="22%" valign="top" class="vncellreq">PPTP redirection</td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="redir" type="text" class="formfld" id="redir" size="20" value="<?=htmlspecialchars($pconfig['redir']);?>">
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<br>
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Enter the IP address of a host which will accept incoming
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PPTP connections.</td>
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input type="radio" name="mode" value="server" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "server") echo "checked"; ?>>
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Enable PPTP server</td>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Max. concurrent
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connections</td>
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<td width="78%" class="vtable">
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<?=$g['n_pptp_units'];?>
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</td>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Server address</td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="localip" type="text" class="formfld" id="localip" size="20" value="<?=htmlspecialchars($pconfig['localip']);?>">
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<br>
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Enter the IP address the PPTP server should use on its side
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for all clients.</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Remote address
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range</td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="remoteip" type="text" class="formfld" id="remoteip" size="20" value="<?=htmlspecialchars($pconfig['remoteip']);?>">
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<br>
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Specify the starting address for the client IP address subnet.<br>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Subnet netmask</td>
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<td width="78%" class="vtable">
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<select id="pptp_subnet" name="pptp_subnet">
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<?php
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for($x=0; $x<33; $x++) {
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if($x == $pconfig['pptp_subnet'])
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$SELECTED = " SELECTED";
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else
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$SELECTED = "";
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echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
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}
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?>
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</select>
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<br>Hint: 24 is 255.255.255.0
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</td>
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</tr>
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<tr>
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333
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<td width="22%" valign="top" class="vncellreq">No. PPTP users</td>
|
|
334
|
<td width="78%" class="vtable">
|
|
335
|
<select id="n_pptp_units" name="n_pptp_units">
|
|
336
|
<?php
|
|
337
|
for($x=0; $x<255; $x++) {
|
|
338
|
if($x == $pconfig['n_pptp_units'])
|
|
339
|
$SELECTED = " SELECTED";
|
|
340
|
else
|
|
341
|
$SELECTED = "";
|
|
342
|
echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
|
|
343
|
}
|
|
344
|
?>
|
|
345
|
</select>
|
|
346
|
<br>Hint: 10 is TEN pptp clients
|
|
347
|
</td>
|
|
348
|
</tr>
|
|
349
|
<tr>
|
|
350
|
<td width="22%" valign="top" class="vncell">RADIUS</td>
|
|
351
|
<td width="78%" class="vtable">
|
|
352
|
<input name="radiusenable" type="checkbox" id="radiusenable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radiusenable']) echo "checked"; ?>>
|
|
353
|
<strong>Use a RADIUS server for authentication<br>
|
|
354
|
</strong>When set, all users will be authenticated using
|
|
355
|
the RADIUS server specified below. The local user database
|
|
356
|
will not be used.<br>
|
|
357
|
<br>
|
|
358
|
<input name="radacct_enable" type="checkbox" id="radacct_enable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radacct_enable']) echo "checked"; ?>>
|
|
359
|
<strong>Enable RADIUS accounting <br>
|
|
360
|
</strong>Sends accounting packets to the RADIUS server.</td>
|
|
361
|
</tr>
|
|
362
|
<tr>
|
|
363
|
<td width="22%" valign="top" class="vncell">RADIUS server </td>
|
|
364
|
<td width="78%" class="vtable">
|
|
365
|
<input name="radiusserver" type="text" class="formfld" id="radiusserver" size="20" value="<?=htmlspecialchars($pconfig['radiusserver']);?>">
|
|
366
|
<br>
|
|
367
|
Enter the IP address of the RADIUS server.</td>
|
|
368
|
</tr>
|
|
369
|
<tr>
|
|
370
|
<td width="22%" valign="top" class="vncell">RADIUS shared secret</td>
|
|
371
|
<td width="78%" valign="top" class="vtable">
|
|
372
|
<input name="radiussecret" type="password" class="formfld" id="radiussecret" size="20" value="<?=htmlspecialchars($pconfig['radiussecret']);?>">
|
|
373
|
<br>
|
|
374
|
Enter the shared secret that will be used to authenticate
|
|
375
|
to the RADIUS server.</td>
|
|
376
|
</tr>
|
|
377
|
<td width="78%" class="vtable">
|
|
378
|
<input name="radiussecenable" type="checkbox" id="radiussecenable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radiussecenable']) echo "checked"; ?>>
|
|
379
|
<strong>Use a backup RADIUS server for failover authentication<br>
|
|
380
|
</strong>When set, all users will be authenticated using
|
|
381
|
the RADIUS server specified below. The local user database
|
|
382
|
will not be used</td>
|
|
383
|
</tr>
|
|
384
|
<tr>
|
|
385
|
<td width="22%" valign="top" class="vncell">BACKUP RADIUS server </td>
|
|
386
|
<td width="78%" class="vtable">
|
|
387
|
<input name="radiusserver2" type="text" class="formfld" id="radiusserver2" size="20" value="<?=htmlspecialchars($pconfig['radiusserver2']);?>">
|
|
388
|
<br>
|
|
389
|
Enter the IP address of the RADIUS server.</td>
|
|
390
|
</tr>
|
|
391
|
<tr>
|
|
392
|
<td width="22%" valign="top" class="vncell">BACKUP RADIUS shared secret</td>
|
|
393
|
<td width="78%" valign="top" class="vtable">
|
|
394
|
<input name="radiussecret2" type="password" class="formfld" id="radiussecret2" size="20" value="<?=htmlspecialchars($pconfig['radiussecret2']);?>">
|
|
395
|
<br>
|
|
396
|
Enter the shared secret that will be used to authenticate
|
|
397
|
to the RADIUS server.</td>
|
|
398
|
</tr>
|
|
399
|
<tr>
|
|
400
|
<td width="22%" valign="top" class="vncell">Radius NAS IP</td>
|
|
401
|
<td width="78%" valign="top" class="vtable">
|
|
402
|
<input name="radius_nasip" class="formfld" id="radius_nasip" size="20" value="<?=htmlspecialchars($pconfig['radius_nasip']);?>">
|
|
403
|
</td>
|
|
404
|
</tr>
|
|
405
|
<tr>
|
|
406
|
<td width="22%" valign="top" class="vncell">Radius Accounting Update</td>
|
|
407
|
<td width="78%" valign="top" class="vtable">
|
|
408
|
<input name="radius_acct_update" class="formfld" id="radius_acct_update" size="20" value="<?=htmlspecialchars($pconfig['radius_acct_update']);?>">
|
|
409
|
</td>
|
|
410
|
</tr>
|
|
411
|
<tr>
|
|
412
|
<td width="22%" valign="top" class="vncell">RADIUS issued IP's</td>
|
|
413
|
<td width="78%" valign="top" class="vtable">
|
|
414
|
<input name="radiusissueips" value="yes" type="checkbox" class="formfld" id="radiusissueips"<?php if($pconfig['radiusissueips']) echo " CHECKED"; ?>>
|
|
415
|
<br>Issue IP Addresses via RADIUS server.
|
|
416
|
|
|
417
|
</td>
|
|
418
|
</tr>
|
|
419
|
<tr>
|
|
420
|
<td width="22%" valign="top" class="vncell">WINS Server</td>
|
|
421
|
<td width="78%" valign="top" class="vtable">
|
|
422
|
<input name="wins" class="formfld" id="wins" size="20" value="<?=htmlspecialchars($pconfig['wins']);?>">
|
|
423
|
</td>
|
|
424
|
</tr>
|
|
425
|
<tr>
|
|
426
|
<td height="16" colspan="2" valign="top"></td>
|
|
427
|
</tr>
|
|
428
|
<tr>
|
|
429
|
<td width="22%" valign="middle"> </td>
|
|
430
|
<td width="78%" class="vtable">
|
|
431
|
<input name="req128" type="checkbox" id="req128" value="yes" <?php if ($pconfig['req128']) echo "checked"; ?>>
|
|
432
|
<strong>Require 128-bit encryption</strong><br>
|
|
433
|
When set, 128-bit encryption will be accepted. Otherwise,
|
|
434
|
40-bit and 56-bit encryption will be accepted, too. Note that
|
|
435
|
encryption will always be forced on PPTP connections (i.e.
|
|
436
|
unencrypted connections will not be accepted).</td>
|
|
437
|
</tr>
|
|
438
|
<tr>
|
|
439
|
<td width="22%" valign="top"> </td>
|
|
440
|
<td width="78%">
|
|
441
|
<input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
|
|
442
|
</td>
|
|
443
|
</tr>
|
|
444
|
<tr>
|
|
445
|
<td width="22%" valign="top"> </td>
|
|
446
|
<td width="78%"><span class="vexpl"><span class="red"><strong>Note:<br>
|
|
447
|
</strong></span>don't forget to <a href="firewall_rules.php?if=pptp">add a firewall rule</a> to permit
|
|
448
|
traffic from PPTP clients!</span></td>
|
|
449
|
</tr>
|
|
450
|
</table>
|
|
451
|
</div>
|
|
452
|
</td>
|
|
453
|
</tr>
|
|
454
|
</table>
|
|
455
|
</form>
|
|
456
|
<script language="JavaScript">
|
|
457
|
<!--
|
|
458
|
enable_change(false);
|
|
459
|
//-->
|
|
460
|
</script>
|
|
461
|
<?php include("fend.inc"); ?>
|
|
462
|
</body>
|
|
463
|
</html>
|
|
464
|
|