Chapter 8 LAN
SBG3500-N Series User’s Guide
164
DHCP Server
Lease Time
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.
Days/Hours/
Minutes
Enter the lease time of the DHCP server.
DNS Values This field is only available when you select Enable in the DHCP field.
DNS 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.
DNS Server 1
DNS Server 2
Enter the first and second DNS (Domain Name System) server IP address the SBG3500-N
Series passes to the DHCP clients.
LAN IPv6 Mode Setup
IPv6 State
Select Enable to activate the IPv6 mode and configure IPv6 settings on the SBG3500-N
Series.
LAN IPv6 Address Setup
Delegate prefix
from WAN
Select this option to automatically obtain an IPv6 network prefix from the service provider
or an uplink router.
Static
Select this option to configure a fixed IPv6 address for the SBG3500-N Series’s LAN IPv6
address.
Note: This fixed address is for local hosts to access the Web Configurator only as the global
LAN IPv6 address might be changed by your ISP any time. This address is not the
routing gateway’s address for LAN IPv6 hosts.
ULA Pseudo-
Random Global
ID
Select this option to get IP addresses with same prefix using the Unique Local Address
Random Global ID.
ULA IPv6 Address Setup
IPv6 Address
If you select static IPv6 address, enter the IPv6 address prefix that the SBG3500-N Series
uses for the LAN IPv6 address.
Prefix Length
If you select static IPv6 address, enter the IPv6 prefix length that the SBG3500-N Series
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.
MLD Snooping
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 SBG3500-N Series. This allows the SBG3500-N Series to check MLD
packets passing through it and learn the multicast group membership. It helps reduce
multicast traffic.
Table 32 Network Setting > LAN > LAN Setup (continued)
LABEL DESCRIPTION
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