[bmsleight]

From the openwrt machine

root@OpenWrt:~# cat ./test.sh 
rm  /tmp/example.pipe
mkfifo /tmp/example.pipe
cat /tmp/example.pipe  | netcat -l -vvv  -p  5001 &
sleep 1

screen -dmS default_session -t screen_name 
screen -S default_session -p screen_name  -X stuff 'ssh  root@192.168.1.105 "nc 192.168.1.126 5001 | tee -i" \r'


sleep 1
echo "hi" >/tmp/example.pipe 
echo "world" >/tmp/example.pipe 

root@OpenWrt:~# /bin/ash test.sh 
Listening on any address 5001
Connection from 192.168.1.105:37688
root@OpenWrt:~# screen -S default_session -p screen_name  -X kill
root@OpenWrt:~# Total received bytes: 0
Total sent bytes: 9

I can have KUAL trigger the openwrt machine

Thanks for the replies. Back to tidying up and finding the next snag.