Environmental Manager: Main Module 17
BOOTP. For the Main Module to use a BOOTP
server to configure its TCP/IP settings, it must find a
properly configured RFC951-compliant BOOTP
server.
1. In the BOOTPTAB file of the BOOTP server,
enter the Main Module’s MAC address, IP
address, subnet mask, and default gateway,
and, optionally, a bootup file name. For the
MAC address, look on the bottom of the Main
Module or on the Quality Assurance slip
included in the package.
2. When the Main Module starts, the BOOTP
server provides it with the TCP/IP settings.
–If you specified a bootup file name, the Main
Module attempts to transfer that file from
the BOOTP server using TFTP or FTP. The
Main Module assumes all settings specified
in the bootup file.
–If you did not specify a bootup file name, you
can configure the Main Module remotely by
using the Web interface or control console;
the user name and password are both apc,
by default.
To create the bootup fil e, see
your BOOTP server
documentation.
DHCP. You can use an RFC2131/RFC2132-
compliant DHCP server to configure the TCP/I P
settings for the Main Module.
This section briefly summarizes the Main
Module’s communication with a DHCP
server. For more detail about how a
DHCP server is used to configure the
network settings for the Main Module,
see “DHCP Configuration” in the
Environmental Manager: Main Module
User’s Guide.
1. The Main Module sends out a DHCP request
that uses the fo llowing to ident ify itself:
–Vendor Class Identifier (APC by default)
–Client Identifier (by default, the Main
Module’s MAC address value)
–User Class Identifier (by default, the
identification of the Main Module’s
application firmware)
2. A properly configured DHCP server responds
with a DHCP offer that includes all of the
settings that the Main Module needs for
network communication. The DHCP offer
also includes the Vendor Specific Information
option (DHCP option 43). By default, the
Main Module ignores DHCP offers that do not
encapsulate the APC cookie in DHCP option
43 using the following hexidecimal format:
Option 43 = 01 04 31 41 50 43