Das mag er auch nicht 

Code:
root@dm820:~# echo "1:1" | nc -u -w 192.168.0.50 14450
nc: invalid option -- 'u'
BusyBox v1.24.1 (2016-11-24 23:17:13 CET) multi-call binary.
Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]
Open a pipe to IP:PORT or FILE
-l Listen mode, for inbound connects
(use -ll with -e for persistent server)
-p PORT Local port
-w SEC Connect timeout
-i SEC Delay interval for lines sent
-f FILE Use file (ala /dev/ttyS0) instead of network
-e PROG Run PROG after connect


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