ZyXEL Communications 91-009-073003B manual 263

	Chapter 11 Interfaces
Table 68 Configuration > Network > Interface > Bridge > Edit (continued)
LABEL	DESCRIPTION
IP Pool Start	Enter the IP address from which the ZyWALL begins allocating IP
Address	addresses. If 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	Specify the IP addresses up to three DNS servers for the DHCP clients
Server	to use. Use one of the following ways to specify these IP addresses.
Second DNS
Server	Custom Defined - enter a static IP address.
Third DNS
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, Second	server that you want to send to the DHCP clients. The WINS server
WINS Server	keeps a mapping 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.
Enable IP/MAC	Select this option to have this interface enforce links between specific
Binding	IP addresses and 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	Select this option to have the ZyWALL generate a log if a device
for IP/MAC	connected to this interface attempts to use an IP address that is
Binding	bound to another device’s MAC address.
Violation
Static DHCP	Configure a list of static IP addresses the ZyWALL assigns to
Table	computers connected to 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 USG 50 User’s Guide