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btheu/udp multicast

Last active September 18, 2018 21:00
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udp multicast
## http://www.dest-unreach.org/socat/doc/socat-multicast.html
## SIMPLE
# receive
socat - udp4-listen:5000,reuseaddr,fork
# send
echo "hello" | socat - udp-sendto:127.0.0.1:5000
## MULTICAST
# receive
socat UDP4-RECVFROM:6666,ip-add-membership=224.1.0.1:192.168.1.67,fork EXEC:hostname
# send
socat STDIO UDP4-DATAGRAM:224.1.0.1:6666,range=192.168.1.0/24
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