diff --git a/Makefile b/Makefile
index 62e8da5..9fa948d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,41 @@
 .PHONY: run
-run: ./ap3825i.expect
-	env OUTPUT_LOG_FILE=$(shell date +%Y-%m-%d_%H-%M-%S).date.log ./ap3825i.expect
+
+run0: ./ap3825i.expect
+	env \
+	LAN_PORT=lan14 \
+	SERIAL_PORT=/dev/ttyUSB0 \
+	MACHINE_ADDRESS=192.168.0.2 \
+	INITRAMFS_FILENAME=openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin \
+	OUTPUT_LOG_FILE=$(shell date +%Y-%m-%d_%H-%M-%S).date.log \
+	./ap3825i.expect
+
+run1: ./ap3825i.expect
+	env \
+	LAN_PORT=lan16 \
+	SERIAL_PORT=/dev/ttyUSB1 \
+	MACHINE_ADDRESS=192.168.0.3 \
+	INITRAMFS_FILENAME=openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin \
+	OUTPUT_LOG_FILE=$(shell date +%Y-%m-%d_%H-%M-%S).date.log \
+	./ap3825i.expect
+
+run2: ./ap3825i.expect
+	env \
+	LAN_PORT=lan18 \
+	SERIAL_PORT=/dev/ttyUSB2 \
+	MACHINE_ADDRESS=192.168.0.4 \
+	INITRAMFS_FILENAME=openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin \
+	OUTPUT_LOG_FILE=$(shell date +%Y-%m-%d_%H-%M-%S).date.log \
+	./ap3825i.expect
+
+run3: ./ap3825i.expect
+	env \
+	LAN_PORT=lan20 \
+	SERIAL_PORT=/dev/ttyUSB3 \
+	MACHINE_ADDRESS=192.168.0.5 \
+	INITRAMFS_FILENAME=openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin \
+	OUTPUT_LOG_FILE=$(shell date +%Y-%m-%d_%H-%M-%S).date.log \
+	./ap3825i.expect
+
+.PHONY: follow
+follow:
+	find . -type f -name '*.log' | xargs ls -tr | tail -1 | xargs tail -f
diff --git a/ap3825i.expect b/ap3825i.expect
index 13da918..e30c3b0 100755
--- a/ap3825i.expect
+++ b/ap3825i.expect
@@ -38,9 +38,9 @@ proc reliable_send {str} {
     }
 }
 
-spawn picocom -b 115200 /dev/ttyUSB1 --logfile $env(OUTPUT_LOG_FILE)
+spawn picocom -b 115200 $env(SERIAL_PORT) --logfile $env(OUTPUT_LOG_FILE)
 set term_id $spawn_id
-spawn ./toggle_jg928a_port.sh
+spawn ./toggle_jg928a_port.sh $env(LAN_PORT)
 set spawn_id $term_id
 
 expect "DRAM"
@@ -54,8 +54,16 @@ send "new2day\n"
 
 expect {
 	"Boot (PRI)-> " {
-		send -s {setenv ramboot_openwrt "setenv ipaddr 192.168.0.2; setenv serverip 192.168.0.1; tftpboot 0x2000000 openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin; interrupts off; bootm 0x2000000;"; setenv boot_openwrt "bootm 0xEC000000;"; setenv bootcmd "run boot_openwrt"; saveenv;
-}
+		send -s {setenv ramboot_openwrt "setenv ipaddr }
+		# "
+		send -s "$env(MACHINE_ADDRESS)"
+		send -s {; setenv serverip 192.168.0.1; tftpboot 0x2000000 }
+		send -s "$env(INITRAMFS_FILENAME)"
+		send -s {; interrupts off; bootm 0x2000000;"}
+		# "
+		send -s "\n"
+		send -s {setenv boot_openwrt "bootm 0xEC000000;"; setenv bootcmd "run boot_openwrt"; saveenv;}
+		send -s "\n"
 	}
 }
 expect {
diff --git a/toggle_jg928a_port.sh b/toggle_jg928a_port.sh
index 52c6a9c..f17a5f3 100755
--- a/toggle_jg928a_port.sh
+++ b/toggle_jg928a_port.sh
@@ -6,10 +6,10 @@ function s {
 
 echo before: | tr '\n' '\t'
 s ubus call poe info
-s ubus call poe manage '{"port": "lan16", "enable": false}'
+s ubus call poe manage '{"port": "'$1'", "enable": false}'
 sleep 2;
 
 echo after shutoff: | tr '\n' '\t';
 s ubus call poe info;
-s ubus call poe manage '{"port": "lan16", "enable": true}'
+s ubus call poe manage '{"port": "'$1'", "enable": true}'
 sleep 2;