SMC Networks 7904WBRA2, User Manual

Page: 72 / 139

C
ONFIGURATION
P
ARAMETERS
4-33
Click
Add VLAN
to setup the profile.
• Description: enter a name or description for the VLAN.
• IP Address: enter the IP address.
• Subnet Mask: enter the subnet mask.
• NAT Domain: select private or public.
• IGMP Snooping: Internet Group Management Protocol (IGMP)
snooping is a method by which Layer 2 devices can “listen in” on
IGMP conversations between hosts and routers. When a switch hears
a group join message from a host, it notes which switch interface it
heard the message on, and adds that interface to the group. Similarly,
when a Layer 2 switch hears a group leave message or a response timer
expires, the switch will remove that host’s switch interface from the
group.
• IGMP Querier: if the IGMP Querier is enabled, then the router will
periodically query all multicast group members on the specified
VLAN.