diff --git a/package/istoreos-files/files/etc/uci-defaults/09_istoreos b/package/istoreos-files/files/etc/uci-defaults/09_istoreos
index dbc0f6ab4c..f2357edb44 100644
--- a/package/istoreos-files/files/etc/uci-defaults/09_istoreos
+++ b/package/istoreos-files/files/etc/uci-defaults/09_istoreos
@@ -11,7 +11,7 @@ uci -q batch <<-EOF >/dev/null
 EOF
 
 uci set dockerd.globals.data_root=/overlay/upper/opt/docker
-
+WAN_ZONE=
 if grep -qFw nas /proc/device-tree/chosen/default-firewall; then
     WAN_ZONE=`uci show firewall | grep -E '^firewall\.@zone\[[0-9]+\]\.name='"'wan'" | head -n1 | head -c -12`
     uci -q batch <<-EOF >/dev/null
@@ -42,6 +42,22 @@ EOF
     fi
 fi
 
+WWAN_PROTO=`uci -q get network.wwan.proto`
+if [ "none" = "$WWAN_PROTO" ]; then
+    uci -q batch <<-EOF >/dev/null
+        set network.wwan.proto='dhcp'
+        commit network
+EOF
+fi
+
+if [ -n "$WWAN_PROTO" ]; then
+    [ -n "$WAN_ZONE" ] || WAN_ZONE=`uci show firewall | grep -E '^firewall\.@zone\[[0-9]+\]\.name='"'wan'" | head -n1 | head -c -12`
+    uci -q batch <<-EOF >/dev/null
+        add_list ${WAN_ZONE}.network='wwan'
+        commit firewall
+EOF
+fi
+
 if ! grep -qFw router /proc/device-tree/chosen/default-firewall; then
 
     WAN_IF=`jsonfilter -i /etc/board.json -e '@.network.wan.device'`
diff --git a/target/linux/rockchip/armv8/base-files/etc/board.d/02_network b/target/linux/rockchip/armv8/base-files/etc/board.d/02_network
index fda565a275..756e97fd1d 100644
--- a/target/linux/rockchip/armv8/base-files/etc/board.d/02_network
+++ b/target/linux/rockchip/armv8/base-files/etc/board.d/02_network
@@ -50,7 +50,6 @@ rockchip_setup_interfaces()
 	friendlyarm,nanopi-r6s)
 		ucidef_set_interfaces_lan_wan 'eth0 eth2' 'eth1'
 		;;
-	linkease,easepi-r2|\
 	hinlink,opc-h68k|\
 	lunzn,fastrhino-r68s|\
 	lyt,t68m|\
@@ -69,6 +68,10 @@ rockchip_setup_interfaces()
 	sinovoip,rk3568-bpi-r2pro)
 		ucidef_set_interfaces_lan_wan 'lan0 lan1 lan2 lan3' 'eth0'
 		;;
+	linkease,easepi-r2)
+		ucidef_set_interfaces_lan_wan 'eth1 eth2 eth3' 'eth0'
+		ucidef_set_interface "wwan" device "usb4g" metric "100" protocol "none"
+		;;
 	radxa,e24c)
 		ucidef_add_switch "switch0" \
 			"0:wan" "1:lan" "2:lan" "3:lan" "6t@eth0"
diff --git a/target/linux/rockchip/armv8/base-files/etc/hotplug.d/usb/24-ml307r-dialup b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/usb/24-ml307r-dialup
new file mode 100644
index 0000000000..23d5376586
--- /dev/null
+++ b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/usb/24-ml307r-dialup
@@ -0,0 +1,99 @@
+#!/bin/sh
+# Copyright (C) 2026 jjm2473@gmail.com
+
+[[ "$ACTION" = bind ]] || exit
+[[ "$PRODUCT" = "2ecc/3012/*" ]] || exit
+
+TTYNAME=
+if [[ $(cat "/sys${DEVPATH}/bInterfaceNumber") = "02" ]]; then
+	TTYNAME=$(cat /sys${DEVPATH}/tty*/tty/tty*/uevent | grep '^DEVNAME=' | head -1 | cut -d= -f2)
+fi
+
+LOG=/tmp/log/ml307r-at-$TTYNAME.log
+
+send_cmd() {
+	echo -ne "$2"'\r\n' >"$1"
+}
+
+# dev, cmd, result, timeout
+send_and_wait() {
+	send_cmd "$1" "$2"
+	local seconds
+	for seconds in $(seq 1 ${4:-1}); do
+		grep -qF "$3" "$LOG" && return 0
+		sleep 1
+	done
+	return 1
+}
+
+ping_at() {
+	local seconds
+	for seconds in $(seq 1 ${2:-1}); do
+		send_and_wait "$1" "AT" "OK" 1 && return 0
+		sleep 1
+	done
+	return 1
+}
+
+LOGPID=
+clean_and_exit() {
+	if [[ -n "$LOGPID" ]]; then
+		kill "$LOGPID" 2>/dev/null
+		wait "$LOGPID" 2>/dev/null
+	fi
+	exit $1
+}
+
+# RNDIS: AT+MDIALUPCFG="mode",0
+# ECM: AT+MDIALUPCFG="mode",1
+# Dialup: AT+MDIALUP=1,1
+# Auto dialup: AT+MDIALUPCFG="auto",1
+# SIM card status: AT+CPIN?
+# SIM card ICCID: AT+MCCID
+# SIM card IMSI: AT+CIMI
+# Modem IMEI: AT+CGSN=1
+# Network status: AT+CEREG?
+# IP address: AT+MDIALUP?
+# Signal quality: AT+CSQ
+# Reboot: AT+MREBOOT=0
+
+if [[ -n "$TTYNAME" && -e "/dev/$TTYNAME" ]]; then
+	# rename /dev/$TTYNAME to avoid conflict with other process
+	TTYNAMEEX="tmp-ml307r-$TTYNAME"
+	while [ -e "/dev/$TTYNAME" ]; do
+		rm -f "/dev/$TTYNAMEEX"
+		mv "/dev/$TTYNAME" "/dev/$TTYNAMEEX"
+	done
+	sleep 1
+	cat "/dev/$TTYNAMEEX" >"$LOG" 2>/dev/null &
+	LOGPID=$!
+	ping_at "/dev/$TTYNAMEEX" 4 || { clean_and_exit 1; }
+	>"$LOG"
+
+	if ! send_and_wait "/dev/$TTYNAMEEX" 'AT+MDIALUPCFG="auto"' '+MDIALUPCFG: "auto",' 1 || grep -qF '+MDIALUPCFG: "auto",1' "$LOG"; then
+		logger -t "ml307r" "send AT+MDIALUP=1,1 to $TTYNAME"
+		send_cmd "/dev/$TTYNAMEEX" 'AT+MDIALUP=1,1'
+		sleep 5
+		mv "/dev/$TTYNAMEEX" "/dev/$TTYNAME"
+	else
+		logger -t "ml307r" "set auto dialup to $TTYNAME"
+
+		SUCCESS=false
+		for i in $(seq 1 3); do
+			send_and_wait "/dev/$TTYNAMEEX" 'AT+MDIALUPCFG="auto",1' "OK" 1 || continue
+			send_and_wait "/dev/$TTYNAMEEX" 'AT+MDIALUPCFG="auto"' '+MDIALUPCFG: "auto",1' 1 && { SUCCESS=true; break; }
+			logger -t "ml307r" "failed to set auto dialup to $TTYNAME, retry $i"
+		done
+		if $SUCCESS; then
+			sleep 2
+			logger -t "ml307r" "reboot $TTYNAME to apply auto dialup"
+			send_cmd "/dev/$TTYNAMEEX" 'AT+MREBOOT=0'
+			sleep 1
+		else
+			logger -t "ml307r" "failed to set auto dialup to $TTYNAME"
+			mv "/dev/$TTYNAMEEX" "/dev/$TTYNAME"
+			clean_and_exit 1
+		fi
+	fi
+	clean_and_exit 0
+fi
diff --git a/target/linux/rockchip/armv8/base-files/lib/board/init.sh b/target/linux/rockchip/armv8/base-files/lib/board/init.sh
index b5719a740c..cf60426703 100755
--- a/target/linux/rockchip/armv8/base-files/lib/board/init.sh
+++ b/target/linux/rockchip/armv8/base-files/lib/board/init.sh
@@ -424,6 +424,13 @@ board_set_iface_smp_affinity() {
 	esac
 }
 
+serial_option_new_id() {
+	# ASR Microelectronics ML307R
+	echo 2ecc 3012 ff > /sys/bus/usb-serial/drivers/option1/new_id
+	# Quectel EC801E
+	echo 2c7c 0903 ff > /sys/bus/usb-serial/drivers/option1/new_id
+}
+
 board_wait_wifi() {
 	local seconds
 	[[ -f "/etc/uci-defaults/01-rk35xx-wifi" ]] || return 0
@@ -445,4 +452,6 @@ board_fixup_iface_name
 
 board_set_iface_smp_affinity
 
+serial_option_new_id
+
 board_wait_wifi