HP Color LaserJet CP1515n Printer - Manual (Page 39)

Configure IP parameters
TCP/IP configuration parameters can be configured manually, or they can be automatically downloaded
by using DHCP or BOOTP each time the product is turned on.
When turned on, a new product that is unable to retrieve a valid IP address from the network
automatically assigns itself a default IP address. On a small private network, a unique IP address in the
range of 169.254.1.0 to 169.254.254.255 is assigned. The IP address for the product is listed on the
product Configuration page and the Network report. See
Use the control-panel menus on page 44 .
Dynamic Host Configuration Protocol (DHCP)
DHCP allows a group of devices to use a set of IP addresses that are maintained by a DHCP server.
The device sends a request to the server, and if an IP address is available, the server assigns it to that
device.
BOOTP
BOOTP is a bootstrap protocol used to download configuration parameters and host information from
a network server.
The client broadcasts a boot request packet that contains the product hardware address. The server
answers with a boot reply packet that contains the information that the device needs for configuration.
Subnets
When an IP network address for a particular network class is assigned to an organization, no provision
is made for more than one network being present at that location. Local network administrators use
subnets to partition a network into several different subnetworks. Splitting a network into subnets can
result in better performance and improved use of limited network address space.
Subnet mask
The subnet mask is a mechanism used to divide a single IP network into several different subnetworks.
For a given network class, a portion of an IP address that would normally be used to identify a node is
used, instead, to identify a subnetwork. A subnet mask is applied to each IP address to specify the
portion used for subnetworks, and the portion used to identify the node.
Gateways
Gateways (routers) are used to connect networks together. Gateways are devices that act as translators
between systems that do not use the same communication protocols, data formatting, structures,
languages, or architectures. Gateways repackage the data packets and change the syntax to match
that of the destination system. When networks are divided into subnets, gateways are required to
connect one subnet to another.
Default gateway
The default gateway is the IP address of the gateway or router that moves packets between networks.
If multiple gateways or routers exist, then the default gateway is typically the address of the first, or
nearest, gateway or router. If no gateways or routers exist, then the default gateway will typically assume
the IP address of the network node (such as the workstation or product).
ENWW Network configuration 29