Zyxel Switches from GS1900-10HP up to XGS4600 and ADSL/VDSL DSLAM allow us to drop Multicast in the local Network. The benefit of this is that Switch doesn’t flood Multicast in hole Network.
1) Configure Multicast Block
Navigate to:
SWITCHING > Multicast > IPv4 Multicast > IGMP Snooping
Set Unknown Multicast Frame / Unknown Multicast Frame to Querier Port /
Reserved Multicast Group to Drop. (Info: It is not needed to set IGMP Snooping => Active)
Multicast will be dropped now in your Network.
2) Configure Multicast Block in Legacy GUI
Go to Multicast Setup under Advanced Applications and select here IPv4 Multicast:
Go to IGMP Snooping:
Set Unknown Multicast Frame / Unknown Multicast Frame to Querier Port /
Reserved Multicast Group to Drop. (Info: It is not needed to set IGMP Snooping => Active)
Multicast will be dropped now in your Network.