HP LaserJet 3055 - Manual (Page 180)

TCP/IP configuration
To operate correctly on a TCP/IP network, the all-in-one must be configured with valid TCP/IP
network configuration parameters, such as an IP address that is valid for your network.
CAUTION Changes to these settings might result in a loss of functionality with your all-in-
one. For example, network scanning, network faxing, or HP Web JetAdmin might stop working
with certain settings changes.
Server-based, AutoIP, and manual TCP/IP configuration
When in a factory-default state and powered on, the all-in-one will first try to obtain its TCP/IP
configuration using a server-based method, such as BOOTP or DHCP. If the server-based method
fails, the all-in-one will then be configured using the AutoIP protocol. The all-in-one may also be
configured manually. Manual-based tools include a Web browser, the all-in-one control panel, or the
HP ToolboxFX utility. TCP/IP configuration values assigned manually will be retained when the all-in-
one is powered off/on. The all-in-one can also be reconfigured to use either server-based only
(BOOTP and/or DHCP), and/or AutoIP only, or manual configuration of TCP/IP settings at any time.
Server-based TCP/IP configuration
In its factory-default state, the all-in-one will first try BOOTP. If this fails it will then try DHCP. If this
fails, it will then obtain an IP address via AutoIP. In addition, a default IP address will not be assigned
if a network cable is not attached to the all-in-one.
Default IP address configuration (AutoIP)
A default IP address will be assigned via the AutoIP protocol if the server based methods fail. When
DHCP or BOOTP fails to obtain an IP address, the all-in-one uses a link-local addressing technique
to assign a unique IP address. Link-local addressing may be referenced as AutoIP. The IP address
assigned will be in the range of 169.254.1.0 to 169.254.254.255 (commonly referenced as
169.254/16), and should be valid. However, it can be further modified for your network using
supported TCP/IP configuration tools if necessary. With link-local addresses, subnetting is not used.
The subnet mask will be 255.255.0.0, and cannot be changed. Link-local addresses will not route off
the local link, and access to or from the Internet will not be available. The default gateway address
will be the same as the link-local address. If a duplicate address is sensed, the all-in-one will
automatically reassign its address, if necessary, in accordance with standard link-local addressing
methods. The IP address configured on your all-in-one may be determined by inspecting the network
configuration page for the all-in-one. Since it may take some time for the server-based protocols to
time out, the AutoIP process can be sped up by disabling the BOOTP and DHCP services on the all-
in-one. This can be done via a Web browser.
162 Chapter 9 Networking ENWW