Chapter 6 LAN Setup

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

This field specifies the first of the contiguous addresses in the IP

Starting

address pool.

Address

 

 

 

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

Select this if your ISP dynamically assigns DNS server information.

from a WAN

 

interface

 

 

 

WAN

Select a WAN interface through which you obtain the DNS related

Interfaces

information.

 

 

Use the following

Select this if you want to configure the DNS server addresses

Static DNS IP

manually.

address

 

 

 

First DNS

Enter the first DNS server IP address the P-2812HNU-51c passes to

Server

the DHCP clients.

 

 

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P-2812HNU-51c User’s Guide