HP Color LaserJet Professional CP5225 Printer series - Manual (Page 47)

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).
IP address
You can configure the IP address manually or automatically via DHCP, BootP, or Auto IP.
NOTE: When assigning IP addresses, always consult the IP address administrator. Setting the wrong
address can disable other equipment operating on the network or interfere with communications.
Manual configuration
1. On the control panel, press the OK button.
2. Use the arrow buttons to select the Network Configuration menu, and then press the OK button.
3. Use the arrow buttons to select the TCP/IP Configuration menu, and then press the OK button.
4. Use the arrow buttons to select the Manual option, and then press the OK button.
5. Press the right arrow button to increase the value for the first section of the IP address. Press
the left arrow button to decrease the value. When the value is correct, press the
OK button.
Repeat this process for the other three sections of the IP address.
6. If the address is correct, use the arrow buttons to select the Yes option, and then press the OK
button. Select a subnet mask and repeat step 5 for the default gateway settings.
-or-
If the IP address is incorrect, use the arrow buttons to select the No option, and then press the
OK button. Repeat step 5 to establish the correct IP address, and then select a subnet mask and
repeat step 5 for the default gateway settings.
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