HP Ew2400 - JetDirect Print Server Administrator's Manual page 37

DHCP Requests Enable/Disable
When a default IP address is assigned, you can configure the print
server to send, or not send, periodic DHCP requests. DHCP requests
are used to retrieve IP configuration settings from a DHCP server
on the network. By default, this parameter is enabled, allowing
DHCP requests to be transmitted. However, this parameter may be
disabled through supported configuration tools such as Telnet, a
Web browser, and SNMP management applications.
HP Jetdirect Wireless Print Server. When initially powered
on, a factory-default wired/wireless print server that has no
connection to a network will likely self-assign a link-local IP
address. If a network connection to a DHCP server-based network
is made, the IP address will likely be reconfigured because DHCP
requests on the print server are enabled by default.
Default IP on Wireless and Wired Print Servers
Wired and wireless print servers may have different default IP
configuration results:
When powered on, a factory-default print server connected to a
network through a cable (wired) will systematically use BOOTP,
DHCP, and RARP to retrieve its IP settings. Up to two minutes
are used. If configuration is not successful, a default IP address
will be assigned as described previously.
For a factory-default wired/wireless print server that is not
connected through a cable, only a wireless Ad Hoc connection is
initially available. In this case, retrieval of IP settings from a
network is limited to about four seconds. During this time, a
single BOOTP request is transmitted, and broadcast packets
are sensed. Because a response from a BOOTP server on an Ad
Hoc network is unlikely, and the number of broadcast packets
sensed will be minimal, a default IP configuration using
link-local addressing is likely.
However, the IP configuration may change once the wireless
print server is connected a DHCP network because the sending
of DHCP requests will be enabled by default.
Configuration tools that require a specific default IP address on the
print server for initial communication may not work without
modification. For the default IP address settings actually
configured on the print server, see the Jetdirect configuration page.
ENWW
TCP/IP Configuration 37