ZyXEL Communications 110, 1100, 310 infinite, Subnet Mask, Subnet Mask, DHCP server, Custom Defined, days, hours, and minutes, interface’s IP Pool Start Address and Pool Size

	Chapter 7 Interfaces
Table 53 Configuration > Network > Interface > VLAN > Create Virtual Interface (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 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 up to three DNS servers for the DHCP clients to use. Use one
Second DNS	of the following ways to specify these IP addresses.
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.
	ZyWALL - the DHCP clients use the IP address of this interface and the ZyWALL 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 Section 7.3.4 on page 124.
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 option’s name.
Code	This is the option’s code number.
Type	This is the option’s type.
Value	This is the option’s value.
Enable IP/MAC	Select this option to have the ZyWALL enforce links between specific IP addresses and
Binding	specific MAC addresses for this VLAN. 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 ZyWALL generate a log if a device connected to this VLAN
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 ZyWALL assigns to computers connected to
Table	the interface. Otherwise, the ZyWALL assigns an IP address dynamically using the
	interface’s IP Pool Start Address and Pool Size.

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ZyWALL 110/310/1100 Series User’s Guide