HP Enterprise printers and scanners - Imaging and Printing Security Best Practices (white paper)

LLMNR
Link-Local Multicast Name Resolution (LLMNR) is a protocol that provides a method for resolving host names on the same local
link. It is useful in networks that do not have a DNS server. It does not require any configuration or administration in order to work,
and it supports IPv4 and IPv6. A host on the network that needs to resolve a host name sends a query to a multicast address. Other
hosts on the network who support LLMNR listen to this multicast address and respond to the query.
Figure 58: The Configuration Categories Menu Network option.
HP Jetdirect XML Server
The HP Jetdirect XML Services setting is used to enable/disable the IXDM Access Interface (IXA). XML Device Model (XDM) provides a
method for collecting or configuring complex data where SNMP is impractical. One such example is IPsec. Web Jetadmin 10.4
supports configuring IPsec on a device through XDM. To configure IPsec, WJA constructs an XML document and sends it to the IXA
interface on the device. When the HP Jetdirect XML services setting is disabled, the IXA interface is disabled and configuration
through XDM cannot take place.