found it:
set vlans [vlan name] filter input block_mDNS
and here is my config:
[edit firewall family ethernet-switching]
# show
filter classify-voip {
term classify-all {
then {
accept;
forwarding-class ezqos-voice-fc;
loss-priority low;
}
}
}
filter block_mDNS {
term blocknDNS {
from {
destination-address {
224.0.0.251/32;
}
##
## Warning: value port ignored: unsupported platform (ex2200-c-12p-2g)
##
port 5353;
}
then discard;
}
term accept_other {
then accept;
}
}
I am tetsing this first with 2200C then will apply to 3300