HP Officejet Pro 251dw Printer series - Manual (Page 136)

Product security features
This product supports security standards and protocols that help secure the product, protect
information on your network, and simplify monitoring and maintenance of the product.
For information about HP's secure imaging and printing solutions, visit www.hp.com/go/
Secureprinting. The site provides links to white papers and FAQ documents about security
features and may include information about additional security features that are not contained in
this document.
Assign an administrator password in the embedded web server
The embedded web server allows you to assign an administrator password so that unauthorized
users cannot change product configuration settings in the embedded web server. When the admin
password is assigned and applied, you must enter the password to make any configuration
changes that are done through the embedded web server. If you change an existing password,
you must first enter that password. You can also remove the password by entering the existing
password and then deleting the assigned password.
Control panel lock
The embedded web server allows the ability to lock certain features on the product’s control panel
to prevent unauthorized use. Once the control panel lock is enabled, certain control panel
configuration features cannot be changed from the control panel. The control panel lock setting
itself can also be secured. This is accomplished by setting the embedded web server
administrator password. Once the embedded web server administrator password is set, the admin
password must be entered when accessing the control panel lock enable/disable setting.
Disable unused protocols and services
The embedded web server allows the ability to disable unused protocols and services. These
protocol and services settings can also be protected from being changed by setting the EWS
admin password. These protocols and services include the following:
•
IPv4 and IPv6 disable/enable: To operate properly on a TCP/IP network, the product must
be configured with valid TCP/IP network configuration settings, such as an IP address that
is valid for your network. This product supports two versions of this protocol: version 4
(IPv4) and version 6 (IPv6). IPv4 and IPv6 can be enabled/disable individually or
simultaneously enabled.
• Bonjour disable/enable: Bonjour services are typically used on small networks for IP
address and name resolution where conventional a DNS server is not used. The Bonjour
service can be enabled or disabled.
• SNMP disable/enable: SNMP (Simple Network Management Protocol) is used by network
management applications for product management. This product supports the SNMPv1
protocol on IP networks. This product allows the ability to enable/disable SNMPv1.
• WINS disable/enable: If you have a Dynamic Host Configuration Protocol (DHCP) service
on your network, the product automatically obtains its IP address from that server and
registers its name with any RFC 1001 and 1002-compliant dynamic name services as long
as the Windows Internet Name Service (WINS) server IP address has been specified. The
WINS server IP address configuration can be enable or disabled. If enabled, then the
primary and secondary WINS server can be specified.
• SLP disable/enable: Service Location Protocol (SLP) is an Internet standard network
protocol that provides a framework to allow network applications to discover the existence,
location and configuration of networked services in enterprise networks. This protocol can
be enabled or disabled.
• LPD disable/enable: Line Printer Daemon (LPD) refers to the protocol and programs
associated with line-printer spooling services that may be installed on various TCP/IP
systems. LPD can be enabled or disabled.
Appendix D
132 Printer management tools