ZyXEL Communications P-870HN-5xb - Page 106

Chapter 6 LAN Setup
P-870HN-5xb User’s Guide
106
The following table describes the fields in this screen.
Table 23 Network > 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 21 on page 247 for how to create a new
interface group.
IP Address Enter the LAN IP address you want to assign to your Device 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 Device act as a DHCP server or DHCP relay
agent.
Otherwise, deselect this to not have the Device provide any DHCP
services. The DHCP server will be disabled.
DHCP Server Select this option to have the Device assign IP addresses and provide
subnet mask, gateway, and DNS server information to the network.
The Device is the DHCP server for the network.
When the Device 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.
Lease Time This field specifies the lease time in days, hours and minutes of the IP
address assigned by the DHCP server.
DHCP Relay Select this option to have the Device 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
If you do not configure DNS servers, the Device 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 Device, the Device forwards the query to its system DNS server you
configured in the WAN screen.
Obtain DNS
info from a
WAN
interface:
Select this to have the Device get the DNS server addresses from one
of the Device’s WAN interfaces.
WAN
Interface
Select a WAN interface through which to get DNS server addresses.
Use the
following
Static DNS IP
address
Select this to have the Device use the DNS server addresses you
configure manually.
First DNS
Server
Enter the first DNS (Domain Name System) server IP address the
Device passes to the DHCP clients.