diff --git a/conf.default/config.xml b/conf.default/config.xml
index df266f0630..fb5c7be790 100644
--- a/conf.default/config.xml
+++ b/conf.default/config.xml
@@ -194,6 +194,9 @@
 		<disablelargereceiveoffloading/>
 		<ipv6allow/>
 		<powerd_mode>hadp</powerd_mode>
+		<bogons>
+			<interval>monthly</interval>
+		</bogons>
 	</system>
 	<interfaces>
 		<wan>
diff --git a/usr/local/www/interfaces.php b/usr/local/www/interfaces.php
index 7d14829767..c4c127bbe1 100755
--- a/usr/local/www/interfaces.php
+++ b/usr/local/www/interfaces.php
@@ -2619,6 +2619,8 @@ $types6 = array("none" => gettext("None"), "staticv6" => gettext("Static IPv6"),
 								"(but not RFC 1918) or not yet assigned by IANA."); ?>&nbsp;&nbsp;
 								<?=gettext("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."); ?>
+								<br/><br/>
+								<?=gettext("Note: The update frequency can be changed under System->Advanced Firewall/NAT settings.")?>
 							</td>
 						</tr>
 					</table> <!-- End "allcfg" table -->
diff --git a/usr/local/www/system_advanced_firewall.php b/usr/local/www/system_advanced_firewall.php
index db0aaa4741..e65581ed5f 100644
--- a/usr/local/www/system_advanced_firewall.php
+++ b/usr/local/www/system_advanced_firewall.php
@@ -59,6 +59,7 @@ $pconfig['maximumtables'] = $config['system']['maximumtables'];
 $pconfig['maximumtableentries'] = $config['system']['maximumtableentries'];
 $pconfig['disablereplyto'] = isset($config['system']['disablereplyto']);
 $pconfig['disablenegate'] = isset($config['system']['disablenegate']);
+$pconfig['bogonsinterval'] = $config['system']['bogons']['interval'];
 $pconfig['disablenatreflection'] = $config['system']['disablenatreflection'];
 $pconfig['enablebinatreflection'] = $config['system']['enablebinatreflection'];
 $pconfig['reflectiontimeout'] = $config['system']['reflectiontimeout'];
@@ -170,6 +171,22 @@ if ($_POST) {
 			$config['system']['tftpinterface'] = implode(",", $_POST['tftpinterface']);
 		else
 			unset($config['system']['tftpinterface']);
+		
+		if ($_POST['bogonsinterval'] != $config['system']['bogons']['interval']) {
+			switch ($_POST['bogonsinterval']) {
+				case 'daily':
+					install_cron_job("/usr/bin/nice -n20 /etc/rc.update_bogons.sh", true, "1", "3", "*", "*", "*");
+					break;
+				case 'weekly':
+					install_cron_job("/usr/bin/nice -n20 /etc/rc.update_bogons.sh", true, "1", "3", "*", "*", "1");
+					break;
+				case 'monthly':
+					// fall through
+				default:
+					install_cron_job("/usr/bin/nice -n20 /etc/rc.update_bogons.sh", true, "1", "3", "1", "*", "*");
+			}
+			$config['system']['bogons']['interval'] = $_POST['bogonsinterval'];
+		}
 	
 		write_config();
 
@@ -392,6 +409,24 @@ function update_description(itemnum) {
 							<tr>
 								<td colspan="2" class="list" height="12">&nbsp;</td>
 							</tr>
+							<tr>
+								<td colspan="2" valign="top" class="listtopic"><?=gettext("Bogon Networks");?></td>
+							</tr>		
+							<tr>
+								<td width="22%" valign="top" class="vncell"><?=gettext("Update Frequency");?></td>
+								<td width="78%" class="vtable">
+									<select name="bogonsinterval" class="formselect">
+									<option value="monthly" <?php if (empty($pconfig['bogonsinterval']) || $pconfig['bogonsinterval'] == 'monthly') echo "selected"; ?>><?=gettext("Monthly"); ?></option>
+									<option value="weekly" <?php if ($pconfig['bogonsinterval'] == 'weekly') echo "selected"; ?>><?=gettext("Weekly"); ?></option>
+									<option value="daily" <?php if ($pconfig['bogonsinterval'] == 'daily') echo "selected"; ?>><?=gettext("Daily"); ?></option>
+									</select>
+									<br/>
+									<?=gettext("The frequency of updating the lists of IP addresses that are reserved (but not RFC 1918) or not yet assigned by IANA.");?>
+								</td>
+							</tr>
+							<tr>
+								<td colspan="2" class="list" height="12">&nbsp;</td>
+							</tr>
 							<?php if(count($config['interfaces']) > 1): ?>
 							<tr>
 								<td colspan="2" valign="top" class="listtopic"><?=gettext("Network Address Translation");?></td>