Dhcp Server Configuration Guidelines - HP 5130 EI series Configuration Manual

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HTTP server—Assigns files for automatic configuration to the device, for example, the configuration
file.
TFTP server—Stores files required for device automatic configuration, including the configuration
files and host name files. For more information about the TFTP server, see "Configuring TFTP."
DNS server—Resolves the device's temporary IP address to its host name so the device can request
a configuration file named in the format host name.cfg from the TFTP server. The DNS server might
also need to resolve the TFTP server domain name to the TFTP server IP address. For more
information about the DNS server, see Layer 3—IP Services Configuration Guide.
If the DHCP server, the HTTP server, the TFTP server, the DNS server, and the device reside on different
network segments, you must perform the following tasks:
Configure the DHCP relay agent on the gateway.
Configure routing protocols to make sure the servers have routes to the device and vice versa.
A configuration file for automatic configuration can be in the form of a script (Tcl script). A script can be
used to implement automatic version update or configuration assignment. For more information about Tcl
scripts, see "Using Tcl"

DHCP server configuration guidelines

To make a device request a configuration file from an HTTP server, specify the HTTP URL of the
configuration file. To make a device request a configuration file from a TFTP server, specify the path
of the file in the working directory and the file name.
If the devices on a network segment share the same configuration file, configure the dynamic
address allocation mechanism on the connected interface of the DHCP server.
If the devices on a network segment share most of their configurations, configure the dynamic
address allocation mechanism on the connected interface of the DHCP server. You can put the
configurations that the devices share to the configuration file, and provide a method for the device
administrators to change the configurations after their devices start up. For example, you can use a
configuration file to enable the Telnet service and create a local user, so administrators can Telnet
to their devices to perform specific configurations after their devices start up.
If the devices on a network segment require different configurations, configure the static address
allocation mechanism on the connected interface of the DHCP server. This method allows you to
have a separate configuration file for each device.
Before you configure a static binding for a device, you must obtain the client ID of the device. To
do so, you can ask the device administrator for the client ID or use the following procedure to view
the client ID:
a.
Configure dynamic address allocation on the DHCP server's interface that is connected to the
client.
b.
Ask the device administrator to power on the device.
c.
Execute the display dhcp server ip-in-use command on the DHCP server to view the client ID of
the device after the device starts up.
After you complete the static binding configuration, ask the device administrator to power off the
device and then power it on. The device then gets the IP address and configuration parameters you
configured for it.
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