diff --git a/net/bsbf-openwrt-resources/Makefile b/net/bsbf-openwrt-resources/Makefile
index 9cece8d8d6..7588b7f1f5 100644
--- a/net/bsbf-openwrt-resources/Makefile
+++ b/net/bsbf-openwrt-resources/Makefile
@@ -4,7 +4,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bsbf-openwrt-resources
-PKG_VERSION:=3
+PKG_VERSION:=4
 
 PKG_LICENSE:=AGPL-3.0-or-later
 PKG_MAINTAINER:=Chester A. Unal <chester.a.unal@arinc9.com>
diff --git a/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-cellular b/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-cellular
index da37783025..f4149b88d3 100644
--- a/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-cellular
+++ b/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-cellular
@@ -61,5 +61,11 @@ uci set network.wwan$index.proto="$cur_proto"
 uci set network.wwan$index.apn='internet'
 uci set network.wwan$index.peerdns='0'
 uci set network.wwan$index.metric="$metric"
-uci commit network
+
+# Add wwan network entry to firewall wan zone.
+fw_section=$(uci show firewall | grep "name='wan'" | cut -d. -f2)
+[ -n "$fw_section" ] && uci add_list firewall.$fw_section.network="wwan$index"
+
+uci commit
+service firewall reload
 ifup wwan$index
diff --git a/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-dhcp b/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-dhcp
index 4b4c27d0a2..36ceee0742 100644
--- a/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-dhcp
+++ b/net/bsbf-openwrt-resources/files/etc/hotplug.d/net/99-bsbf-autoconf-dhcp
@@ -29,5 +29,11 @@ uci set network.wan_"$DEVICENAME".device="$DEVICENAME"
 uci set network.wan_"$DEVICENAME".proto='dhcp'
 uci set network.wan_"$DEVICENAME".peerdns='0'
 uci set network.wan_"$DEVICENAME".metric="$metric"
-uci commit network
+
+# Add wan network entry to firewall wan zone.
+fw_section=$(uci show firewall | grep "name='wan'" | cut -d. -f2)
+[ -n "$fw_section" ] && uci add_list firewall.$fw_section.network="wan_$DEVICENAME"
+
+uci commit
+service firewall reload
 ifup wan_"$DEVICENAME"