Dynamic Host Configuration Protocol - NEC 4400 - SuperScript Color Laser Printer User Manual

Dynamic Host Configuration Protocol
Dynamic Host Configuration Protocol (DHCP) allows
automatic assignment of IP address and other IP parameters
for attached devices. The 4400N works with DHCP in the
following way.
At power-up, the 4400N NIC broadcasts a DHCP request for
an IP address. If a DHCP server is present, the request will be
processed, and an IP address will be returned to the NIC.
Upon receipt of the IP address, the NIC resets, and prints a
Network Settings page. This shows the new IP address (and
subnet mask, and default gateway, if any). Under factory
default settings, once an IP address has been assigned to it, the NIC
will no longer broadcast DHCP requests. If you uncheck IP
Address in NVRAM, in the Network Administration Page, the
printer will broadcast a DHCP request each time you turn on the
printer.
The DHCP server may grant a temporary IP address, called a
temporary lease or temporary reservation, which expires
later, or may grant a permanent or unlimited lease or
reservation which does not expire.
Devices that are granted a temporary lease will be notified
before the lease expires and asked if they would like to
extend the lease. The NIC will continue extending its lease
indefinitely (unless prohibited by your DHCP server
configuration), and thus maintain a consistent IP address.
Important: If the NIC is not turned on or is not connected to the
network when the DHCP server is sending requests to extend the
lease, the lease will not be extended. The DHCP server will cancel
the lease and may assign the IP address to another device.
Therefore, it is highly recommended to explicitly specify the NIC
lease as permanent or unlimited in your DHCP server
configuration.
DHCP Settings in the Network Administration Page
You can control the way the NIC handles DHCP from the
Network Administration Page. To go there,
1. Go to the URL Configuration Page, the URL is
http://<IP address>/configure.html.
2. Click on the Network Administration link. This displays
the Network Administration Page.
3. Under Protocols, click Setup TCP/IP. The two DHCP
Settings are shown here.
The factory default is that both settings are checked.
When Enable DHCP is not checked, the NIC will not
make DHCP requests.
When IP Address in NVRAM is not checked, the NIC
will always make a new DHCP address request at printer
power on.
Windows 83