Billion 7800DX, Руководство пользователя

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73
LAN - Local Area Network
A Local Area Network (LAN) is a shared communication system network where many computers
are connected. This type of network is area defined and is usually limited to a confined region within
a building.
Ethernet
Parameters
Group Name:
This refers to the group you set in
Interface Grouping
section; you can set the
parameters for the specific group. Select the group via the drop-down box. For more information
please refer to
Interface Grouping of this manual.
IP address:
the IP address of the router. Default is 192.168.1.254.
Subnet Mask:
the default Subnet mask on the router.
IGMP Snooping:
Enable or disable the IGMP Snooping function. Without IGMP snooping,
multicast traffic is treated in the same manner as broadcast traffic - that is, it is forwarded to all
ports. With IGMP snooping, multicast traffic of a group is only forwarded to ports that have
members of that group.”
When enabled, you will see two modes:

Standard Mode:
In standard mode, multicast traffic will flood to all bridge ports when no
client subscribes to a multicast group.

Blocking Mode:
In blocking mode, the multicast data will be blocked when there are no
client subscribes to a multicast group, it won’t flood to the bridge ports.
LAN side firewall:
Enable to drop all traffic from the specified LAN group interface. After activating it,
all incoming packets by default will be dropped, and the user on the specified LAN group interface
can't access CPE anymore. But, you can still access the internet service. If user wants to manage
the CPE, please turn to
IP Filtering Incoming to add the allowing rules.
Note
that all incoming
packets by default will be dropped if the LAN side firewall is enabled and user cannot manage this