Panasonic NN46110-600 - Manual (Page 67)

Chapter 2 Configuring servers 57
Configuring DHCP servers
Dynamic Host Configuration Protocol (DHCP) dynamically assigns IP addresses
to clients and provides centralized network administration. When a DHCP client
requests an IP address, a DHCP server grants the client exclusive use of an
assigned IP address for a specified period of time.
When you configure both the DHCP server and DHCP relay on the same
interface, the DHCP server takes precedence and the DHCP packets received by
the VPN Router are processed by the DHCP server. For DHCP relay to be
functional, you must disable the DHCP server for the interface on which the
DHCP relay is configured.
The DHCP server requires that either the Stateful Firewall or interface filter is
enabled. Incoming DHCP packets are discarded if the SFW or interface filter is
not enabled.
Note: The VPN Router includes a full implementation of a DHCP
server that is in compliance with RFC 2131 and RFC 2132.
The following restrictions apply to the DHCP server:
• DHCP server is enabled by default on the private (trusted) interface.
• DHCP Relay and the DHCP Server are mutually exclusive on a physical port.
Note: You can enter duplicate IP addresses for the DNS servers without
receiving error messages stating that there are duplicate addresses. This
applies to both the UI and CLI interfaces.
To configure the DHCP server:
1 Select Servers > DHCP.
2 Click DHCP Service Enabled to enable the DHCP server .
3 In the Default Options section, specify the lease time in the ddd:hh:mm:ss
format or select Infinite to indicate an unspecified period of time.
Nortel VPN Router Security — Servers, Authentication, and Certificates