Tie cudne IP su multicasty. Dropuj to v bridge filters a vypni ten prechod az to firewallu, nieco na sposob tohto:
/interface bridge settings
set use-ip-firewall=no use-ip-firewall-for-pppoe=no use-ip-firewall-for-vlan=no
/interface bridge filter
add action=drop chain=forward comment="BLOCK MCAST" disabled=no \
dst-address=224.0.0.0/4 in-bridge=bridge1 mac-protocol=ip out-bridge=bridge1