Chapter 10 Interface

 

Table 50 Network > Interface > Ethernet > Edit (continued)

 

LABEL

DESCRIPTION

 

Relay Server 2

This field is optional. Enter the IP address of another DHCP server for the

 

 

network.

 

 

 

 

 

These fields appear if the ZyWALL is a DHCP Server.

 

 

 

 

IP Pool Start

Enter the IP address from which the ZyWALL begins allocating IP addresses. If

 

Address

you want to assign a static IP address to a specific computer, click Add Static

 

 

DHCP.

 

 

If this field is blank, the Pool Size must also be blank. In this case, the ZyWALL

 

 

can assign every IP address allowed by the interface’s IP address and subnet

 

 

mask, except for the first address (network address), last address (broadcast

 

 

address) and the interface’s IP address.

 

 

 

 

Pool Size

Enter the number of IP addresses to allocate. This number must be at least one

 

 

and is limited by the interface’s Subnet Mask. For example, if the Subnet Mask

 

 

is 255.255.255.0 and IP Pool Start Address is 10.10.10.10, the ZyWALL can

 

 

allocate 10.10.10.10 to 10.10.10.254, or 245 IP addresses.

 

 

If this field is blank, the IP Pool Start Address must also be blank. In this case,

 

 

the ZyWALL can assign every IP address allowed by the interface’s IP address

 

 

and subnet mask, except for the first address (network address), last address

 

 

(broadcast address) and the interface’s IP address.

 

 

 

 

First DNS Server

Specify the IP addresses of a maximum of three DNS servers that the network

 

Second DNS

can use. The ZyWALL provides these IP addresses to DHCP clients. You can

 

Server

specify these IP addresses two ways.

 

Third DNS

Custom Defined - enter a static IP address.

 

Server

 

From ISP - use the IP address of a DNS server that another interface received

 

 

 

 

from its DHCP server.

 

 

 

 

First WINS

Type the IP address of the WINS (Windows Internet Naming Service) server

 

Server, Second

that you want to send to the DHCP clients. The WINS server keeps a mapping

 

WINS Server

table of the computer names on your network and the IP addresses that they

 

 

are currently using.

 

 

 

 

Lease time

Specify how long each computer can use the information (especially the IP

 

 

address) before it has to request the information again. Choices are:

 

 

infinite - select this if IP addresses never expire.

 

 

days, hours, and minutes - select this to enter how long IP addresses are

 

 

valid.

 

 

 

 

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ZyWALL USG 1000 User’s Guide