yes, they are in the same VLAN
I try also this:
udp-sender --file /opt/fog/.fogsettings --log /opt/fog/log/multicast.log --ttl 1 --nopointopoint --portbase 9000
with this:
nc -u 10.1.10.164 9000
but I have no answer
there is no error in /aparche2/error.log