V300ATA VoIP User Manual
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6 Basic Configurations
6.1 WAN Configuration
This page let you configure the WAN settings.
Figure 6-1 WAN Configuration
Bridge:
Enable to connect the LAN to the WAN (bridge the two connections). This is
available in Bridge Mode only. Default is Disabled.
IGMP:
IGMP (Internet Group Management Protocol) relay/proxy specification and
environment, default is Disabled. IGMP is available in all modes and all encapsulations.
Support IGMP proxy/relay function for ADSL Bridge/Router, based on the following
requirement and cases:
•
On CO side, there must be at least one IGMP querier (router) present. IGMP querier
will send IGMP query packet. The ADSL Bridge/Router is responsible to relay these
IGMP queries to Ethernet.
•
End-user multicast application device sends IGMP report while receiving IGMP
query or being activated by the user. The ADSL Bridge/Router should be responsible
to proxy (that is, change source IP to ADSL Bridge/Router’s WAN IP) the IGMP
report to ADSL WAN side, including all PVCs. The same case is for IGMP leave
packet.
•
Not necessary to relay multicast routing between two ADSL PVCs or two interfaces
in LAN side.
