HP 630n HP Jetdirect Print Servers - Administrator's Guide - Page 30

Default IPv4 address configuration options, Default IPv4 behavior, HP Jetdirect Wireless Print Server - state

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Default IP on wireless and wired print servers Wired and wireless print servers can have different default IP configuration results: ● When turned on, a print server in a factory default state that is connected to a network through a cable (wired), retrieves its IP settings by systematically using BOOTP, DHCP, and RARP. If configuration fails, a default IP address is assigned. ● A wired/wireless print server in a factory default state that is not connected by a cable initially has only a wireless ad hoc connection available. Retrieval of IP settings from a network is limited to a few seconds, during which 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 are minimal, a default IP configuration using link-local addressing is likely. The IP configuration can change when the wireless print server is connected to a DHCP network because, sending DHCP requests is enabled by default even after a link-local address is assigned. Configuration tools that require a specific default IP address on the print server for initial communication might not work without modification. For the default IP address settings actually configured on the print server, see the HP Jetdirect configuration page. Default IPv4 address configuration options Default IPv4 parameter A default IP configuration parameter on the print server controls how the default IPv4 address is assigned. Whenever the print server is unable to obtain an IP address during a forced TCP/IP reconfiguration (for example, when manually configured to use BOOTP or DHCP), this parameter determines the default IPv4 address to use. When the print server is in a factory default state, this parameter is undefined. If the print server is initially configured with a default IPv4 address by using either a link-local IPv4 address or the legacy default 192.0.0.192 IP address, the default IP parameter is set to either Auto IP or Legacy Default IP to match. You can change the Default IP parameter by using a supported configuration tool, such as Telnet, a Web browser, a printer control panel, or SNMP management applications. DHCP requests enable/disable When a default IPv4 address is assigned, you can configure the print server to send periodic DHCP requests, which are used to retrieve IP configuration settings from a DHCP server on the network. By default, this parameter is enabled, allowing transmission of DHCP requests. To disable this parameter, use a supported configuration tool such as Telnet, a Web browser, or SNMP management applications. When an HP Jetdirect Wireless Print Server in a factory default state (without a network connection) is initially turned on, it likely self-assigns a link-local IP address. If a network connection to a DHCP server-based network is made, the IP address might be reconfigured because DHCP requests on the print server are enabled by default. Default IPv4 behavior When turned on, a factory-default print server connected to a network through a cable (wired), retrieves its IPv4 settings by systematically using BOOTP, DHCP, and RARP. This can take several minutes to complete. If configuration fails, a default IPv4 address is assigned. 20 Chapter 3 TCP/IP configuration ENWW

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Default IP on wireless and wired print servers
Wired and wireless print servers can have different default IP configuration results:
●
When turned on, a print server in a factory default state that is connected to a network through a
cable (wired), retrieves its IP settings by systematically using BOOTP, DHCP, and RARP. If
configuration fails, a default IP address is assigned.
●
A wired/wireless print server in a factory default state that is not connected by a cable initially has
only a wireless ad hoc connection available. Retrieval of IP settings from a network is limited to a
few seconds, during which 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 are minimal, a default IP configuration using link-local
addressing is likely.
The IP configuration can change when the wireless print server is connected to a DHCP network
because, sending DHCP requests is enabled by default even after a link-local address is assigned.
Configuration tools that require a specific default IP address on the print server for initial communication
might not work without modification. For the default IP address settings actually configured on the print
server, see the HP Jetdirect configuration page.
Default IPv4 address configuration options
Default IPv4 parameter
A default IP configuration parameter on the print server controls how the default IPv4 address is
assigned. Whenever the print server is unable to obtain an IP address during a forced TCP/IP
reconfiguration (for example, when manually configured to use BOOTP or DHCP), this parameter
determines the default IPv4 address to use.
When the print server is in a factory default state, this parameter is undefined.
If the print server is initially configured with a default IPv4 address by using either a link-local IPv4
address or the legacy default 192.0.0.192 IP address, the default IP parameter is set to either
Auto IP
or
Legacy Default IP
to match.
You can change the Default IP parameter by using a supported configuration tool, such as Telnet, a
Web browser, a printer control panel, or SNMP management applications.
DHCP requests enable/disable
When a default IPv4 address is assigned, you can configure the print server to send periodic DHCP
requests, which are used to retrieve IP configuration settings from a DHCP server on the network. By
default, this parameter is enabled, allowing transmission of DHCP requests. To disable this parameter,
use a supported configuration tool such as Telnet, a Web browser, or SNMP management applications.
When an
HP Jetdirect Wireless Print Server
in a factory default state (without a network connection)
is initially turned on, it likely self-assigns a link-local IP address. If a network connection to a DHCP
server-based network is made, the IP address might be reconfigured because DHCP requests on the
print server are enabled by default.
Default IPv4 behavior
When turned on, a factory-default print server connected to a network through a cable (wired), retrieves
its IPv4 settings by systematically using BOOTP, DHCP, and RARP. This can take several minutes to
complete. If configuration fails, a default IPv4 address is assigned.
20
Chapter 3
TCP/IP configuration
ENWW