Forwarding UDP debug data through server - I thought this would be easy!

I like to be able to keep an eye on Mgcamd's logging output as I'm playing around, and as you know it can send it out to a UDP port.
So I set the logging option in mg_cfg to

L: { 03 } 192.168.0.5 29000

and on the PC (Ubuntu laptop on .5) use netcat to view it

nc -u -l -vv 29000

which works fine.

However, as I have a few different PCs on my home network, it was a pain in the arse having to change mg_cfg and restart if I wanted to view the output with a different PC.

I tried setting mgcamd to send it to the broadcast address 192.168.0.255 29000 - but that didn't work. No problem I thought, I'll get mgcamd to send to my home server (ie an ancient laptop :-) ) and just broadcast it from there.

Fuck me, something so simple has been doing my head in!

I tried various approaches with netcat, but netcat couldn't open a broadcast connection

y@ubuntu:~$ echo "test" | nc -u -vv 192.168.0.255 29123
nc: connect to 192.168.0.255 port 29123 (udp) failed: Permission denied

so after a bit of googling I moved to socat to do the forwarding on the server, eventually arriving with

socat EDP4-RECVFROM:29000,fork UDP4-SENDTO:192.168.0.255:29001,broadcast

But with the data being forwarded, when I try to receive it with netcat an a PC, it only gets one line, and then just sits there!

nc -u -l -vv 29000

AAARRRGGGGHHHHHHH! I really thought that even to a Linux & networking imbecile like me this would be simple!

Hopefully some of the experts can tell me what stupid mistake I'm making!

Got this sorted, so you can put the world's most boring thread to bed....

I had to use

socat -u udp-recv:29001 -

on the receiving laptop, instead of good old netcat. Even that took me a while as it throws an error if you don't include the last hypen...