ZyXEL P-2812HNU-51c User Manual Page 140

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Chapter 6 LAN Setup
P-2812HNU-51c User’s Guide
140
The following table describes the fields in this screen.
Table 32 LAN > IP
LABEL DESCRIPTION
LAN TCP/IP
Group Name Select the interface group for which you want to configure the LAN
TCP/IP settings. See Chapter 13 on page 117 for how to create a new
interface group.
IP Address Enter the LAN IPv4 address you want to assign to your P-2812HNU-
51c in dotted decimal notation, for example, 192.168.1.1 (factory
default).
IP Subnet Mask Type the subnet mask of your network in dotted decimal notation, for
example 255.255.255.0 (factory default).
DHCP Setup
Active DHCP Select this to have the P-2812HNU-51c act as a DHCP server or DHCP
relay agent.
Otherwise, deselect this to not have the P-2812HNU-51c provide any
DHCP services. The DHCP server will be disabled.
DHCP Server Select this option to have the P-2812HNU-51c assign IP addresses and
provide subnet mask, gateway, and DNS server information to the
network. The P-2812HNU-51c is the DHCP server for the network.
When the P-2812HNU-51c acts as a DHCP server, the following items
need to be set:
IP Pool
Starting
Address
This field specifies the first of the contiguous addresses in the IP
address pool.
Pool Size This field specifies the size, or count of the IP address pool.
DHCP Relay Select this option to have the P-2812HNU-51c forward DHCP request
to the DHCP server.
Relay Server If you select DHCP Relay, enter the IP address of the DHCP server.
DNS Servers Assigned by DHCP Server
The P-2812HNU-51c passes DNS (Domain Name System) server addresses to the LAN
DHCP clients.
If you do not configure DNS servers, the P-2812HNU-51c uses its LAN IP address and tells
the DHCP clients on the LAN that itself is the DNS server. When a LAN client sends a DNS
query to the P-2812HNU-51c, the P-2812HNU-51c forwards the query to its system DNS
server you configured in the WAN screen.
Obtain DNS info
from a WAN
interface
Select this if your ISP dynamically assigns DNS server information.
WAN
Interfaces
Select a WAN interface through which you obtain the DNS related
information.
Use the following
Static DNS IP
address
Select this if you want to configure the DNS server addresses
manually.
First DNS
Server
Enter the first DNS server IP address the P-2812HNU-51c passes to
the DHCP clients.
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