Specifications

Managing Load Hosts
4-8
Using a BOOTP/TFTP Server
Introduction
A BOOTP/TFTP server is a UNIX host that downloads the access server software
using the BOOTP and TFTP protocols. The BOOTP/TFTP server stores the
information necessary to downline load the access server software in the
/etc/bootptab file.
Reference
For information about installing and configuring a BOOTP/TFTP server refer to
the Cabletron Network Access Software Installation guide.
IP Address Configuration Via BOOTP
The Cabletron Network Access Software contains enhanced BOOTP functionality.
The access server stores several important Internet parameters from the BOOTP
server. This ability to store data for future use may be used whether the access
server operating software is loading from FLASH RAM, or via a load host using
the MOP protocol. The factory default settings for this feature now send a BOOTP
request on the network in order to obtain one if the access server unit does not
have an IP address defined in NVRAM. Customers who do not wish to run IP on
their access server, and, therefore, may wish to disable this feature, may issue the
DEFINE INTERNET DISABLE command to explicitly disable it.
The parameters that the access server unit can obtain from the BOOTP server
include the Internet (IP) address, subnet mask, default gateway address, and
domain name server address. The BOOTP server stores the information for the
default domain only; it will always store the IP address. The other parameters are
BOOTP vendor extensions and may or may not be learned, depending on the
capabilities of the BOOTP server used, and the configuration of data in the
BOOTP server database.
Remote Connection Password
CNAS has a password feature for remote logins, similar to the main login
password. CNAS uses a single value for the remote password server-wide that is
separate from the main login password. The factory default value is the same,
however, for both the remote login password and the main login password.