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<?php
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/* $Id$ */
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/*
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	interfaces_lan.php
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	part of m0n0wall (http://m0n0.ch/wall)
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	Copyright (C) 2003-2004 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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$lancfg = &$config['interfaces']['lan'];
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$optcfg = &$config['interfaces']['lan'];
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$pconfig['ipaddr'] = $lancfg['ipaddr'];
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$pconfig['subnet'] = $lancfg['subnet'];
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$pconfig['bridge'] = $lancfg['bridge'];
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$pconfig['disableftpproxy'] = isset($lancfg['disableftpproxy']);
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/* Wireless interface? */
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if (isset($lancfg['wireless'])) {
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	require("interfaces_wlan.inc");
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	wireless_config_init();
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}
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if ($_POST) {
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	if ($_POST['bridge']) {
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		/* double bridging? */
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		for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
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			if ($i != $index) {
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				if ($config['interfaces']['opt' . $i]['bridge'] == $_POST['bridge']) {
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					//$input_errors[] = "Optional interface {$i} " .
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					//	"({$config['interfaces']['opt' . $i]['descr']}) is already bridged to " .
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					//	"the specified interface.";
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				} else if ($config['interfaces']['opt' . $i]['bridge'] == "opt{$index}") {
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					//$input_errors[] = "Optional interface {$i} " .
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					//	"({$config['interfaces']['opt' . $i]['descr']}) is already bridged to " .
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					//	"this interface.";
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				}
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			}
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		}
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		if ($config['interfaces'][$_POST['bridge']]['bridge']) {
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			//$input_errors[] = "The specified interface is already bridged to " .
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			//	"another interface.";
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		}
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		/* captive portal on? */
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		if (isset($config['captiveportal']['enable'])) {
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			//$input_errors[] = "Interfaces cannot be bridged while the captive portal is enabled.";
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		}
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	}
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	unset($input_errors);
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	$pconfig = $_POST;
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	$changedesc = "LAN Interface: ";
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	/* input validation */
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	$reqdfields = explode(" ", "ipaddr subnet");
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	$reqdfieldsn = explode(",", "IP address,Subnet bit count");
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	do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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	if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) {
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		$input_errors[] = "A valid IP address must be specified.";
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	}
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	if (($_POST['subnet'] && !is_numeric($_POST['subnet']))) {
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		$input_errors[] = "A valid subnet bit count must be specified.";
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	}
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	/* Wireless interface? */
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	if (isset($lancfg['wireless'])) {
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		$wi_input_errors = wireless_config_post();
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		if ($wi_input_errors) {
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			$input_errors = array_merge($input_errors, $wi_input_errors);
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		}
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	}
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	if (!$input_errors) {
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		unset($lancfg['disableftpproxy']);
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		/* per interface pftpx helper */
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		if($_POST['disableftpproxy'] == "yes") {
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			$lancfg['disableftpproxy'] = true;
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			system_start_ftp_helpers();
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		} else {			
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			system_start_ftp_helpers();
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		}			
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		$bridge = discover_bridge($lancfg['if'], filter_translate_type_to_real_interface($lancfg['bridge']));
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		if($bridge <> "-1") {
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			destroy_bridge($bridge);
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		}
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		$lancfg['bridge'] = $_POST['bridge'];
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		if (($lancfg['ipaddr'] != $_POST['ipaddr']) || ($lancfg['subnet'] != $_POST['subnet'])) {
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			update_if_changed("IP Address", &$lancfg['ipaddr'], $_POST['ipaddr']);
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			update_if_changed("subnet", &$lancfg['subnet'], $_POST['subnet']);
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		}
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		write_config($changedesc);
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		touch($d_landirty_path);
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		/* restart snmp so that it binds to correct address */
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		services_snmpd_configure();
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		if ($_POST['apply'] <> "") {
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			unlink($d_landirty_path);
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			$savemsg = "The changes have been applied.  You may need to correct your web browser's IP address.";
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		}
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	}
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}
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$pgtitle = "Interfaces: LAN";
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include("head.inc");
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?>
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<script language="JavaScript">
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<!--
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function enable_change(enable_over) {
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	return;
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	var endis;
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	endis = !((document.iform.bridge.selectedIndex == 0) || enable_over);
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	document.iform.ipaddr.disabled = endis;
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	document.iform.subnet.disabled = endis;
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}
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// -->
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</script>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<form action="interfaces_lan.php" method="post" name="iform" id="iform">
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<?php include("fbegin.inc"); ?>
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<p class="pgtitle"><?=$pgtitle?></p>
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<?php if (file_exists($d_landirty_path)): ?><p>
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<?php print_info_box_np("The LAN configuration has been changed.<p>You must apply the changes in order for them to take effect.<p>Don't forget to adjust the DHCP Server range if needed before applying.");?><br>
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<?php endif; ?>
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<?php if ($savemsg) print_info_box_np($savemsg); ?>
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              <table width="100%" border="0" cellpadding="6" cellspacing="0">
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		<tr>
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                  <td colspan="2" valign="top" class="listtopic">IP configuration</td>
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		</tr>	      
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		<tr>
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                  <td width="22%" valign="top" class="vncellreq">Bridge with</td>
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                  <td width="78%" class="vtable">
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			<select name="bridge" class="formfld" id="bridge" onChange="enable_change(false)">
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				  	<option <?php if (!$pconfig['bridge']) echo "selected";?> value="">none</option>
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                      <?php $opts = array('wan' => "WAN");
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					  	for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
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							if ($i != $index)
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								$opts['opt' . $i] = "Optional " . $i . " (" .
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									$config['interfaces']['opt' . $i]['descr'] . ")";
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						}
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					foreach ($opts as $opt => $optname): ?>
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                      <option <?php if ($opt == $pconfig['bridge']) echo "selected";?> value="<?=htmlspecialchars($opt);?>">
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                      <?=htmlspecialchars($optname);?>
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                      </option>
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                      <?php endforeach; ?>
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                    </select> </td>
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		</tr>	      
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                <tr>
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                  <td width="22%" valign="top" class="vncellreq">IP address</td>
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                  <td width="78%" class="vtable">
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                    <input name="ipaddr" type="text" class="formfld" id="hostname" size="20" value="<?=htmlspecialchars($pconfig['ipaddr']);?>">
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                    /
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                    <select name="subnet" class="formfld" id="subnet">
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					<?php
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					for ($i = 32; $i > 0; $i--) {
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						if($i <> 31) {
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							echo "<option value=\"{$i}\" ";
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							if ($i == $pconfig['subnet']) echo "selected";
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							echo ">" . $i . "</option>";
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						}
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					}
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					?>
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                    </select></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" height="16"></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">FTP Helper</td>
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                </tr>		
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		<tr>
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			<td width="22%" valign="top" class="vncell">FTP Helper</td>
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			<td width="78%" class="vtable">
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				<input name="disableftpproxy" type="checkbox" id="disableftpproxy" value="yes" <?php if ($pconfig['disableftpproxy']) echo "checked"; ?> onclick="enable_change(false)" />
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				<strong>Disable the userland FTP-Proxy application</strong>
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				<br />
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			</td>
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		</tr>			
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				<?php /* Wireless interface? */
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				if (isset($lancfg['wireless']))
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					wireless_config_print();
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				?>
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                <tr>
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                  <td colspan="2" valign="top" height="16"></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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                    <input name="Submit" type="submit" class="formbtn" value="Save">
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                  </td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%"><span class="vexpl"><span class="red"><strong>Warning:<br>
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                    </strong></span>after you click &quot;Save&quot;, you will need
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                    to do one or more of the following steps before you can
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                    access your firewall again:
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                    <ul>
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                      <li>change the IP address of your computer</li>
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                      <li>renew its DHCP lease</li>
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                      <li>access the webGUI with the new IP address</li>
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		      <li>be sure to add <a href="firewall_rules.php">firewall rules</a> to permit traffic through the interface.</li>
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		      <li>You also need firewall rules for an interface in bridged mode as the firewall acts as a filtering bridge.</li>
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                    </ul>
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                    </span></td>
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                </tr>
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              </table>
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</form>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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<?php
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if ($_POST['apply'] <> "") {
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	ob_flush();
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	flush();
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	interfaces_lan_configure();
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	reset_carp();
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	/* sync filter configuration */
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	filter_configure();
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	/* set up static routes */
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	system_routing_configure();
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	if(file_exists($d_landirty_path))
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		unlink($d_landirty_path);
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}
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?>
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