ZyXEL Communications NBG7510, User Manual, Page: 131 / 149

Chapter 10 Home Networking
NBG7510 User’s Guide
131
The following table describes the fields in this screen.
Table 42 Network Setting > Home Networking > LAN Setup
LABEL DESCRIPTION
Interface Group
Group Name
This displays the name of the group that your Zyxel Device belongs to.
LAN IP Setup
IP Address
Enter the LAN IP address you want to assign to your Zyxel Device in dotted decimal notation,
for example, 192.168.123.1 (factory default).
Subnet Mask Type the subnet mask of your network in dotted decimal notation, for example 255.255.255.0
(factory default). Your Zyxel Device automatically computes the subnet mask based on the
IP address you enter, so do not change this field unless you are instructed to do so.
DHCP Server State
DHCP
Select
Enable
to have your Zyxel Device assign IP addresses, an IP default gateway and DNS
servers to LAN computers and other devices that are DHCP clients.
If you select
Disable
, you need to manually configure the IP addresses of the computers and
other devices on your LAN.
If you select
DHCP Relay
, the Zyxel Device acts as a surrogate DHCP server and relays DHCP
requests and responses between the remote server and the clients.
When DHCP is used, the following fields need to be set:
IP Addressing Values
Beginning IP
Address
This field specifies the first of the contiguous addresses in the IP address pool.
Ending IP
Address
This field specifies the last of the contiguous addresses in the IP address pool.
Auto reserve IP
for the same
host
Enable this if you want to reserve the IP address for the same host.
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
DHCP server leases an address to a new device for a period of time, called the DHCP lease
time. When the lease expires, the DHCP server might assign the IP address to a different
device.
DNS Values
DNS
The Zyxel Device supports DNS proxy by default. The Zyxel Device sends out its own LAN IP
address to the DHCP clients as the first DNS server address. DHCP clients use this first DNS
server to send domain-name queries to the Zyxel Device. The Zyxel Device sends a response
directly if it has a record of the domain-name to IP address mapping. If it does not, the Zyxel
Device queries an outside DNS server and relays the response to the DHCP client.
Select
From ISP
if your ISP dynamically assigns DNS server information (and the Zyxel Device's
WAN IP address).
Select
Static
if you have the IP address of a DNS server. Enter the DNS server's IP address in
the field to the right.
Select
DNS Proxy
to have the DHCP clients use the Zyxel Device’s own LAN IP address. The
Zyxel Device works as a DNS relay.
LAN IPv6 Mode Setup