Lucent Technologies 6000 - Manual (Page 229)

Configuring Individual WAN Connections
Configuring DHCP services
MAX 6000/3000 Network Configuration Guide 4-97
How the MAX assigns IP addresses
When you configure a MAX unit to be a DHCP server and it receives a DHCP client request, it
assigns an IP address by means of Plug and Play, reserved address, lease renewal, or
assignment from a pool.
Plug and Play
When you enable the Plug and Play option (DHCP PNP Enabled=Yes), the MAX unit takes its
own IP address, increments it by one, and returns it in the BOOTP reply message along with IP
addresses for the Default Gateway and Domain Name Server. Plug and Play works with
Microsoft Windows 95 (and possibly with other IP stacks) to assign an IP address and other
wide-area networking settings to a requesting device automatically. With Plug and Play, you
can use the unit to respond to distant networks without having to configure an IP address first.
Reserved address
If there is an IP address that is reserved for the host, the MAX unit assigns the reserved
address.
Lease renewal
If the host is renewing the address it currently has, the unit assigns the host the same address.
When a host gets a dynamically assigned IP address from one of the address pools, it
periodically renews the lease on the address until it has finished using it, as defined by the
DHCP protocol. If the host renews the address before its lease expires, the unit always
provides the same address.
Assignment from a pool
If the host is making a new request and there is no IP address reserved for the host, the unit
assigns the next available address from its address pools. It can draw from up to two
20-address pools of contiguous IP addresses. Addresses are assigned by using the first
available address from the first pool or, if there are no available addresses in that pool and there
is a second pool, the first available address in the second pool.
Configuring DHCP services
To configure a DHCP service, open Ethernet > Mod Config > DHCP Spoofing. Although the
name of this menu is DHCP Spoofing, it contains parameters for all DHCP services, including
DHCP Spoofing, DHCP Server, and Plug and Play:
Ethernet
Mod Config
DHCP Spoofing
DHCP Spoofing=Yes
DHCP PNP Enabled=Yes
Renewal Time=10
Become Def. Router=No
Dial If link down=No
Always Spoof=Yes
Validate IP=Yes