Bay Networks 8000 RAC Installing Manual page 65

Chapter 2
When the RAC receives a BootP response with the sm, gw, and ip set, it
sets the respective parameters: subnet_mask, load_dump_gateway, and
inet_addr. The Vendor Magic Cookie must be set to auto. This indicates
that bootpd should respond to the client (Model 8000 Remote Access
Concentrator, in this case) with whatever format the client requests. The
Model 8000 Remote Access Concentrator (client) always makes requests
with the Vendor Magic Cookie set to 99.130.83.99.
The bootpd daemon adds the address of the host on which it is running
as the Server Address in the bootp response message. The ROM uses the
Server Address as the preferred load host and stores it in the
pref_load_addr parameter.
The host running bootpd (the preferred load host) must also be
running erpcd or tftpd.
RARP
If the RAC does not receive a successful BootP response, it uses RARP
to get the boot information. For a successful RARP retrieval, TCP/IP
must be running on a host that is on the same subnet as the RAC, and the
host's ARP table must be initialized with the RAC's IP and Ethernet
addresses (see the arp man page for arp –s
The only boot information that RARP provides is the RAC's IP address.
The ROM saves this information in the inet_addr parameter. The ROMs
use default information for the subnet mask and preferred load host. This
means the ROM will broadcast its requests.
Installing the Model 8000 Remote Access Concentrator
Installing the Model 8000 Remote Access Concentrator
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