ZyXEL Communications UAG2100 User Manual page 116

Table 51 Configuration > Network > Interface > Ethernet > Edit (continued)
LABEL DESCRIPTION
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 UAG 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
UAG 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 Specify the IP addresses up to three DNS servers for the DHCP clients to use. Use one
Server, Second
of the following ways to specify these IP addresses.
DNS Server,
Third DNS
Custom Defined - enter a static IP address.
Server
From ISP - select the DNS server that another interface received from its DHCP server.
Device - the DHCP clients use the IP address of this interface and the UAG works as a
DNS relay.
First WINS Type the IP address of the WINS (Windows Internet Naming Service) server that you
Server, Second
want to send to the DHCP clients. The WINS server keeps a mapping table of the
WINS Server
computer names on your network and the IP addresses that they are currently using.
Default Router If you set this interface to DHCP Server, you can select to use either the interface's IP
address or another IP address as the default router. This default router will become the
DHCP clients' default gateway.
To use another IP address as the default router, select Custom Defined and enter the
IP address.
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.
Extended This table is available if you selected DHCP server.
Options
Configure this table if you want to send more information to DHCP clients through DHCP
packets.
Add Click this to create an entry in this table. See
Edit Select an entry in this table and click this to modify it.
Remove Select an entry in this table and click this to delete it.
# This field is a sequential value, and it is not associated with any entry.
Name This is the name of the DHCP option.
Code This is the code number of the DHCP option.
Type This is the type of the set value for the DHCP option.
Value This is the value set for the DHCP option.
Enable IP/MAC Select this option to have this interface enforce links between specific IP addresses and
Binding
specific MAC addresses. This stops anyone else from manually using a bound IP address
on another device connected to this interface. Use this to make use only the intended
users get to use specific IP addresses.
Enable Logs for Select this option to have the UAG generate a log if a device connected to this interface
IP/MAC Binding
attempts to use an IP address that is bound to another device's MAC address.
Violation
Static DHCP Configure a list of static IP addresses the UAG assigns to computers connected to the
Table
interface. Otherwise, the UAG assigns an IP address dynamically using the interface's
IP Pool Start Address and Pool Size.
Chapter 10 Interfaces
UAG2100 User's Guide
116
Section 10.3.3 on page 118.