HP 2605dtn - Manual (Page 100)

Configuring IP parameters
TCP/IP configuration parameters (such as IP address, subnet mask, default gateway) can be
configured on the printer in a variety of ways. These values can be configured manually (for
example, through Telnet, the embedded Web server, the arp and ping commands, and HP
management software), or they can be automatically downloaded using DHCP or BOOTP each time
the printer is turned on.
When powered on, a new printer that is unable to retrieve a valid IP address from the network will
automatically assign itself a default IP address. The default IP address will depend on the type of
network to which the printer is connected. On a small private network, a technique called link-local
addressing is used to assign a unique IP address in the range of 169.254.1.0 to 169.254.254.255,
which should be valid. On a large or enterprise network, a temporary address of 192.0.0.192 will be
assigned until it is properly configured for your network. The IP address configured on your printer
may be determined by inspecting the printer Configuration page.
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 or host 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. BOOTP uses UDP for its transport. In order for devices to boot and load
configuration information into RAM, they must communicate through the bootstrap protocol BOOTP
as a client with their server.
To configure the device, the client broadcasts a boot request packet containing at least the hardware
address of the device (printer hardware address). The server answers with a boot reply packet
containing the information the device needs to configure.
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. For
example, see
Table 8-7 Example: Subnet mask 255.255.0.0 applied to class A network .
Table 8-7 Example: Subnet mask 255.255.0.0 applied to class A network
Class A Network Address Network 15 xxx xxx xxx
Subnet Mask 255 255 0 0
88 Chapter 8 Networking ENWW