TRENDnet TE100 S810Fi - Manual (Page 58)

Note: This Router supports IGMP protocol, but IGMP function has to be in
enable mode, and the Router has to be the Queryer.
3. This topology must be set for when the Switch
’s IP address is not the
smallest in the subnet. If in Auto mode, the network will cause multi-cast
storm from the client IGMP report, the topology shown as below is
necessary to be set for.
Note: Suggest VOD server set with Switch has smallest IP address.
4. All of Switch must be in Disable mode, When VOD server is set up for
IGMP Queryer.
GVRP (GARP [Generic Attribute Registration Protocol] VLAN
Registration Protocol)
GVRP allows automatic VLAN configuration between the switch and
nodes. If the switch is connected to a device with GVRP enabled, you can
send a GVRP request using the VID of a VLAN defined on the switch, the
switch will automatically add that device to the existing VLAN.