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Table 24 Network Setting > Home Networking > LAN Setup (continued)
LABEL
DHCP Server
Lease Time
Days/Hours/
Minutes
DNS Values
DNS
DNS Server 1
DNS Server 2
LAN IPv6 Mode Setup
IPv6 State
LAN IPv6 Address Setup
Delegate prefix
from WAN
Static
ULA Pseudo-
Random Global
ID
ULA IPv6 Address Setup
IPv6 Address
Prefix Length
MLD Snooping
MLD Mode
VMG5313-B10A/-B30A Series User's Guide
DESCRIPTION
This is the period of time DHCP-assigned addresses is used. DHCP automatically assigns IP
addresses to clients when they log in. DHCP centralizes IP address management on central
computers that run the DHCP server program. DHCP leases addresses, for a period of time,
which means that past addresses are "recycled" and made available for future reassignment
to other systems.
This field is only available when you select Enable in the DHCP field.
Enter the lease time of the DHCP server.
This field is only available when you select Enable in the DHCP field.
Select the type of service that you are registered for from your Dynamic DNS service
provider.
Select Dynamic if you have the Dynamic DNS service.
Select Static if you have the Static DNS service.
Enter the first and second DNS (Domain Name System) server IP address the VMG passes
to the DHCP clients.
Select Enable to activate the IPv6 mode and configure IPv6 settings on the VMG.
Select this option to automatically obtain an IPv6 network prefix from the service provider
or an uplink router.
Select this option to configure a fixed IPv6 address for the VMG's LAN IPv6 address.
A unique local address (ULA) is a unique IPv6 address for use in private networks but not
routable in the global IPv6 Internet.
Select this to have the VMG automatically generate a globally unique address for the LAN
IPv6 address. The address format is like fdxx:xxxx:xxxx:xxxx::/64.
If you select static IPv6 address, enter the IPv6 address prefix that the VMG uses for the
LAN IPv6 address.
If you select static IPv6 address, enter the IPv6 prefix length that the VMG uses to generate
the LAN IPv6 address.
An IPv6 prefix length specifies how many most significant bits (starting from the left) in the
address compose the network address. This field displays the bit number of the IPv6 subnet
mask.
Multicast Listener Discovery (MLD) allows an IPv6 switch or router to discover the presence
of MLD hosts who wish to receive multicast packets and the IP addresses of multicast
groups the hosts want to join on its network. Select Enable MLD Snooping to activate MLD
Snooping on the VMG. This allows the VMG to check MLD packets passing through it and
learn the multicast group membership. It helps reduce multicast traffic.
Select Standard Mode to have the VMG forward IPv6 multicast packets to a port that joins
the IPv6 multicast group and broadcast unknown IPv6 multicast packets from the WAN to all
LAN ports.
Select Blocking Mode to have the VMG block all unknown IPv6 multicast packets from the
WAN.
Chapter 8 Home Networking
117
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