ZyXEL UAG4100 User Guide - Page 180
Add Static DHCP, Pool Size, Subnet Mask, IP Pool Start Address, Custom Defined, From ISP, Device,
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Chapter 10 Interfaces Table 74 Configuration > Network > Interface > VLAN > Edit (continued) LABEL IP Pool Start Address DESCRIPTION Enter the IP address from which the UAG begins allocating IP addresses. If you want to assign a static IP address to a specific computer, click Add Static DHCP. Pool Size If this field is blank, the Pool Size 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. 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 Server Second DNS Server Third DNS Server Specify the IP addresses up to three DNS servers for the DHCP clients to use. Use one of the following ways to specify these IP addresses. Custom Defined - enter a static IP address. From ISP - select the DNS server that another interface received from its DHCP server. First WINS Server, Second WINS Server Default Router Device - the DHCP clients use the IP address of this interface and the UAG works as a DNS relay. Type the IP address of the WINS (Windows Internet Naming Service) server that you want to send to the DHCP clients. The WINS server keeps a mapping table of the computer names on your network and the IP addresses that they are currently using. 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. Lease time To use another IP address as the default router, select Custom Defined and enter the IP address. 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. Extended Options Add Edit Remove # Name Code Type Value Enable IP/MAC Binding days, hours, and minutes - select this to enter how long IP addresses are valid. This table is available if you selected DHCP server. Configure this table if you want to send more information to DHCP clients through DHCP packets. Click this to create an entry in this table. See Section 10.3.3 on page 166. Select an entry in this table and click this to modify it. 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. This is the name of the DHCP option. This is the code number of the DHCP option. This is the type of the set value for the DHCP option. This is the value set for the DHCP option. Select this option to have the UAG enforce links between specific IP addresses and 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. UAG Series User's Guide 180