APC AP7820 Power Supply User Manual


 
Metered Rack Power Distribution Unit 11
DHCP. You can use a RFC2131/RFC2132-
compliant DHCP server to configure the
TCP/IP settings for the
PDU.
1. The
PDU sends a DHCP request that uses the
following to identify itself:
Vendor Class Identifier (APC by default)
Client Identifier (by default, the PDU’s
MAC address)
User Class Identifier (by default, the
identification of the
PDU’s application
firmware)
2. A properly configured DHCP server responds
with a DHCP offer that includes all of the
settings that the
PDU needs for network
communication. The DHCP offer also includes
the Vendor Specific Information option
(DHCP option 43). By default, the
PDU
ignores DHCP offers that do not encapsulate
the APC cookie in the Vendor Specific
Information option using the following
hexidecimal format:
Option 43 = 01 04 31 41 50 43
where
The first byte (01) is the code
The second byte (04) is the length
The remaining bytes (31 41 50 43) are
the APC cookie
See also
This section summarizes the PDU
communication with a DHCP server.
For more detail about how a DHCP
server is used to configure the network
settings for the
PDU, see “DHCP
Configuration Settings” in the User’s
Guide.
See also
See your DHCP server documentation
to add code to the Vendor Specific
Information option.
You can use a local computer to disable
the APC cookie requirement. To use a
local computer, see “Local access to
the control console” on page 12. To
change the control console’s DHCP
Cookie Is setting, an Advanced option
in the TCP/IP menu, use Telnet or
another remote accessing method. To
access the control console, see
“Remote access to the control console”
on page 13.