Reference Guide

B-5
Network Addressing
Using Bootp
Network Addressing
Using Bootp
Bootp (Internet Boot Protocol) is used to download network configuration
data from a server (the Bootp server) to the hub. The configuration data the
hub retrieves from the Bootp server is:
■ the IP address for the hub
■ the subnet mask for the subnet on which the hub is installed
■ the default router
If you have configured the hub’s IP parameters on a Bootp server, you do not
need to use the IP Configuration function in HP Stack Manager. As shipped
from the factory, the hub is configured to use Bootp to retrieve the IP
configuration information.
The Bootp Process
When the hub is powered on, it broadcasts Bootp requests that contain the
hub’s station address. The Bootp server receives the request and searches its
Bootp table file for an entry that matches the hub’s station address. If a match
is found, the configuration data in the associated file entry is returned to the
hub as a Bootp reply. For most UNIX systems, the Bootp table is contained in
the /etc/bootptab file. The example below applies to the Bootp table for UNIX
systems.
Bootp Table File Entries
An entry in the Bootp table file /etc/bootptab for an HP AdvanceStack 100VG
Hub-14 would be similar to the following:
100vghub:\
:ht=ether:\
:ha=080009123456:\
:ip=190.40.101.22:\
:sm=255.255.255.0:\
:gw=190.40.101.1:\
:vm=rfc1048: