II-5-6 IGMP
II-5-6 IGMP
IGMP is the abbreviation of Internet Group Management Protocol. It is a communication
protocol which is mainly used for managing the membership of Internet Protocol multicast
groups.
II-5-
II-5-
6
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-1 General Setting
-1 General Setting
Available settings are explained as follows:
Item Description
IGMP Proxy Check this box to enable this function. The application of
multicast will be executed through WAN /PVC/VLAN port.
In addition, such function is available in NAT mode.
Interface – Specify an interface for packets passing
through.
IGMP version – At present, two versions (v2 and v3) are
supported by Vigor router. Choose the correct version
based on the IPTV service you subscribe.
General Query Interval – Vigor router will periodically
check which IP obtaining IPTV service by sending query. It
might cause inconvenience for client. Therefore, set a
suitable time (unit: second) as the query interval to limit
the frequency of query sent by Vigor router.
Add PPP header – Check this box if the interface type for
IGMP is PPPoE. It depends on the specifications regulated
by each ISP. If you have no idea to enable or disable,
simply contact your ISP providers.
IGMP Snooping Check this box to enable this function. Multicast traffic
will be forwarded to ports that have members of that
group. Disabling IGMP snooping will make multicast traffic
treated in the same manner as broadcast traffic.
IGMP Fast Leave Check this box to make the router stop forwarding
multicast traffic to a LAN port as soon as it receives a
leave message from that port. Each LAN port should have
one IGMP host connected.
Vigor2762 Series User’s Guide
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