. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ require("guiconfig.inc"); $wancfg = &$config['interfaces']['wan']; $optcfg = &$config['interfaces']['wan']; $pconfig['username'] = $config['pppoe']['username']; $pconfig['password'] = $config['pppoe']['password']; $pconfig['provider'] = $config['pppoe']['provider']; $pconfig['pppoe_dialondemand'] = isset($config['pppoe']['ondemand']); $pconfig['pppoe_idletimeout'] = $config['pppoe']['timeout']; $pconfig['pptp_username'] = $config['pptp']['username']; $pconfig['pptp_password'] = $config['pptp']['password']; $pconfig['pptp_local'] = $config['pptp']['local']; $pconfig['pptp_subnet'] = $config['pptp']['subnet']; $pconfig['pptp_remote'] = $config['pptp']['remote']; $pconfig['pptp_dialondemand'] = isset($config['pptp']['ondemand']); $pconfig['pptp_idletimeout'] = $config['pptp']['timeout']; $pconfig['disableftpproxy'] = isset($wancfg['disableftpproxy']); $pconfig['bigpond_username'] = $config['bigpond']['username']; $pconfig['bigpond_password'] = $config['bigpond']['password']; $pconfig['bigpond_authserver'] = $config['bigpond']['authserver']; $pconfig['bigpond_authdomain'] = $config['bigpond']['authdomain']; $pconfig['bigpond_minheartbeatinterval'] = $config['bigpond']['minheartbeatinterval']; $pconfig['dhcphostname'] = $wancfg['dhcphostname']; if ($wancfg['ipaddr'] == "dhcp") { $pconfig['type'] = "DHCP"; } else if ($wancfg['ipaddr'] == "pppoe") { $pconfig['type'] = "PPPoE"; } else if ($wancfg['ipaddr'] == "pptp") { $pconfig['type'] = "PPTP"; } else if ($wancfg['ipaddr'] == "bigpond") { $pconfig['type'] = "BigPond"; } else { $pconfig['type'] = "Static"; $pconfig['ipaddr'] = $wancfg['ipaddr']; $pconfig['subnet'] = $wancfg['subnet']; $pconfig['gateway'] = $config['interfaces']['wan']['gateway']; $pconfig['pointtopoint'] = $wancfg['pointtopoint']; } $pconfig['blockpriv'] = isset($wancfg['blockpriv']); $pconfig['blockbogons'] = isset($wancfg['blockbogons']); $pconfig['spoofmac'] = $wancfg['spoofmac']; $pconfig['mtu'] = $wancfg['mtu']; /* Wireless interface? */ if (isset($wancfg['wireless'])) { require("interfaces_wlan.inc"); wireless_config_init(); } if ($_POST) { unset($input_errors); $pconfig = $_POST; /* input validation */ if ($_POST['type'] == "Static") { $reqdfields = explode(" ", "ipaddr subnet gateway"); $reqdfieldsn = explode(",", "IP address,Subnet bit count,Gateway"); do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); } else if ($_POST['type'] == "PPPoE") { if ($_POST['pppoe_dialondemand']) { $reqdfields = explode(" ", "username password pppoe_dialondemand pppoe_idletimeout"); $reqdfieldsn = explode(",", "PPPoE username,PPPoE password,Dial on demand,Idle timeout value"); } else { $reqdfields = explode(" ", "username password"); $reqdfieldsn = explode(",", "PPPoE username,PPPoE password"); } do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); } else if ($_POST['type'] == "PPTP") { if ($_POST['pptp_dialondemand']) { $reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote pptp_dialondemand pptp_idletimeout"); $reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address,Dial on demand,Idle timeout value"); } else { $reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote"); $reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address"); } do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); } else if ($_POST['type'] == "BigPond") { $reqdfields = explode(" ", "bigpond_username bigpond_password"); $reqdfieldsn = explode(",", "BigPond username,BigPond password"); do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); } /* normalize MAC addresses - lowercase and convert Windows-ized hyphenated MACs to colon delimited */ $_POST['spoofmac'] = strtolower(str_replace("-", ":", $_POST['spoofmac'])); if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) { $input_errors[] = "A valid IP address must be specified."; } if (($_POST['subnet'] && !is_numeric($_POST['subnet']))) { $input_errors[] = "A valid subnet bit count must be specified."; } if (($_POST['gateway'] && !is_ipaddr($_POST['gateway']))) { $input_errors[] = "A valid gateway must be specified."; } if (($_POST['pointtopoint'] && !is_ipaddr($_POST['pointtopoint']))) { $input_errors[] = "A valid point-to-point IP address must be specified."; } if (($_POST['provider'] && !is_domain($_POST['provider']))) { $input_errors[] = "The service name contains invalid characters."; } if (($_POST['pppoe_idletimeout'] != "") && !is_numericint($_POST['pppoe_idletimeout'])) { $input_errors[] = "The idle timeout value must be an integer."; } if (($_POST['pptp_local'] && !is_ipaddr($_POST['pptp_local']))) { $input_errors[] = "A valid PPTP local IP address must be specified."; } if (($_POST['pptp_subnet'] && !is_numeric($_POST['pptp_subnet']))) { $input_errors[] = "A valid PPTP subnet bit count must be specified."; } if (($_POST['pptp_remote'] && !is_ipaddr($_POST['pptp_remote']))) { $input_errors[] = "A valid PPTP remote IP address must be specified."; } if (($_POST['pptp_idletimeout'] != "") && !is_numericint($_POST['pptp_idletimeout'])) { $input_errors[] = "The idle timeout value must be an integer."; } if (($_POST['bigpond_authserver'] && !is_domain($_POST['bigpond_authserver']))) { $input_errors[] = "The authentication server name contains invalid characters."; } if (($_POST['bigpond_authdomain'] && !is_domain($_POST['bigpond_authdomain']))) { $input_errors[] = "The authentication domain name contains invalid characters."; } if ($_POST['bigpond_minheartbeatinterval'] && !is_numericint($_POST['bigpond_minheartbeatinterval'])) { $input_errors[] = "The minimum heartbeat interval must be an integer."; } if (($_POST['spoofmac'] && !is_macaddr($_POST['spoofmac']))) { $input_errors[] = "A valid MAC address must be specified."; } if ($_POST['mtu'] && (($_POST['mtu'] < 576) || ($_POST['mtu'] > 1500))) { $input_errors[] = "The MTU must be between 576 and 1500 bytes."; } /* Wireless interface? */ if (isset($wancfg['wireless'])) { $wi_input_errors = wireless_config_post(); if ($wi_input_errors) { $input_errors = array_merge($input_errors, $wi_input_errors); } } if (!$input_errors) { $bridge = discover_bridge($wancfg['if'], filter_translate_type_to_real_interface($wancfg['bridge'])); if($bridge <> "-1") { destroy_bridge($bridge); } unset($wancfg['ipaddr']); unset($wancfg['subnet']); unset($config['interfaces']['wan']['gateway']); unset($wancfg['pointtopoint']); unset($wancfg['dhcphostname']); unset($config['pppoe']['username']); unset($config['pppoe']['password']); unset($config['pppoe']['provider']); unset($config['pppoe']['ondemand']); unset($config['pppoe']['timeout']); unset($config['pptp']['username']); unset($config['pptp']['password']); unset($config['pptp']['local']); unset($config['pptp']['subnet']); unset($config['pptp']['remote']); unset($config['pptp']['ondemand']); unset($config['pptp']['timeout']); unset($config['bigpond']['username']); unset($config['bigpond']['password']); unset($config['bigpond']['authserver']); unset($config['bigpond']['authdomain']); unset($config['bigpond']['minheartbeatinterval']); unset($wancfg['disableftpproxy']); /* per interface pftpx helper */ if($_POST['disableftpproxy'] == "yes") { $wancfg['disableftpproxy'] = true; system_start_ftp_helpers(); } else { system_start_ftp_helpers(); } if ($_POST['type'] == "Static") { $wancfg['ipaddr'] = $_POST['ipaddr']; $wancfg['subnet'] = $_POST['subnet']; $config['interfaces']['wan']['gateway'] = $_POST['gateway']; if (isset($wancfg['ispointtopoint'])) $wancfg['pointtopoint'] = $_POST['pointtopoint']; } else if ($_POST['type'] == "DHCP") { $wancfg['ipaddr'] = "dhcp"; $wancfg['dhcphostname'] = $_POST['dhcphostname']; } else if ($_POST['type'] == "PPPoE") { $wancfg['ipaddr'] = "pppoe"; $config['pppoe']['username'] = $_POST['username']; $config['pppoe']['password'] = $_POST['password']; $config['pppoe']['provider'] = $_POST['provider']; $config['pppoe']['ondemand'] = $_POST['pppoe_dialondemand'] ? true : false; $config['pppoe']['timeout'] = $_POST['pppoe_idletimeout']; } else if ($_POST['type'] == "PPTP") { $wancfg['ipaddr'] = "pptp"; $config['pptp']['username'] = $_POST['pptp_username']; $config['pptp']['password'] = $_POST['pptp_password']; $config['pptp']['local'] = $_POST['pptp_local']; $config['pptp']['subnet'] = $_POST['pptp_subnet']; $config['pptp']['remote'] = $_POST['pptp_remote']; $config['pptp']['ondemand'] = $_POST['pptp_dialondemand'] ? true : false; $config['pptp']['timeout'] = $_POST['pptp_idletimeout']; } else if ($_POST['type'] == "BigPond") { $wancfg['ipaddr'] = "bigpond"; $config['bigpond']['username'] = $_POST['bigpond_username']; $config['bigpond']['password'] = $_POST['bigpond_password']; $config['bigpond']['authserver'] = $_POST['bigpond_authserver']; $config['bigpond']['authdomain'] = $_POST['bigpond_authdomain']; $config['bigpond']['minheartbeatinterval'] = $_POST['bigpond_minheartbeatinterval']; } if($_POST['blockpriv'] == "yes") $wancfg['blockpriv'] = true; else unset($wancfg['blockpriv']); if($_POST['blockbogons'] == "yes") $wancfg['blockbogons'] = true; else unset($wancfg['blockbogons']); $wancfg['spoofmac'] = $_POST['spoofmac']; $wancfg['mtu'] = $_POST['mtu']; write_config(); $retval = 0; touch("/tmp/reload_interfaces"); $savemsg = get_std_save_message($retval); } } $pgtitle = "Interfaces: WAN"; include("head.inc"); ?>

General configuration
Type
MAC address Copy my MAC address
This field can be used to modify ("spoof") the MAC address of the WAN interface
(may be required with some cable connections)
Enter a MAC address in the following format: xx:xx:xx:xx:xx:xx or leave blank
MTU
If you enter a value in this field, then MSS clamping for TCP connections to the value entered above minus 40 (TCP/IP header size) will be in effect. If you leave this field blank, an MTU of 1492 bytes for PPPoE and 1500 bytes for all other connection types will be assumed.
Static IP configuration
IP address /
Point-to-point IP address
Gateway
DHCP client configuration
Hostname
The value in this field is sent as the DHCP client identifier and hostname when requesting a DHCP lease. Some ISPs may require this (for client identification).
PPPoE configuration
Username
Password
Service name
Hint: this field can usually be left empty
Dial on demand onClick="enable_change(false)" > Enable Dial-On-Demand mode
This option causes the interface to operate in dial-on-demand mode, allowing you to have a virtual full time connection. The interface is configured, but the actual connection of the link is delayed until qualifying outgoing traffic is detected.
Idle timeout seconds
If no qualifying outgoing packets are transmitted for the specified number of seconds, the connection is brought down. An idle timeout of zero disables this feature.
PPTP configuration
Username
Password
Local IP address /
Remote IP address
Dial on demand onClick="enable_change_pptp(false)" > Enable Dial-On-Demand mode
This option causes the interface to operate in dial-on-demand mode, allowing you to have a virtual full time connection. The interface is configured, but the actual connection of the link is delayed until qualifying outgoing traffic is detected.
Idle timeout seconds
If no qualifying outgoing packets are transmitted for the specified number of seconds, the connection is brought down. An idle timeout of zero disables this feature.
BigPond Cable configuration
Username
Password
Authentication server
If this field is left empty, the default ("dce-server") is used.
Authentication domain
If this field is left empty, the domain name assigned via DHCP will be used.

Note: the BigPond client implicitly sets the "Allow DNS server list to be overridden by DHCP/PPP on WAN" on the System: General setup page.
Min. heartbeat interval seconds
Setting this to a sensible value (e.g. 60 seconds) can protect against DoS attacks.
FTP Helper
FTP Helper onclick="enable_change(false)" /> Disable the userland FTP-Proxy application
  > Block private networks
When set, this option blocks traffic from IP addresses that are reserved for private
networks as per RFC 1918 (10/8, 172.16/12, 192.168/16) as well as loopback addresses
(127/8). You should generally leave this option turned on, unless your WAN network
lies in such a private address space, too.
  > Block bogon networks
When set, this option blocks traffic from IP addresses that are reserved (but not RFC 1918) or not yet assigned by IANA.
Bogons are prefixes that should never appear in the Internet routing table, and obviously should not appear as the source address in any packets you receive.