American Power Conversion AP7902 AP7911 - Manual (Page 14)

Quick Configuration
10 Switched Rack PDU Installation and Quick Start
DHCP.
You can use a RFC2131/RFC2132-compliant DHCP server to
configure the TCP/IP settings for the Rack PDU.
1. The Rack PDU sends a DHCP request that uses the following to
identify itself:
– Vendor Class Identifier (APC by default)
– Client Identifier (by default, the Rack PDU’s MAC address)
– User Class Identifier (by default, the identification of the Rack
PDU’s application firmware)
2. A properly configured DHCP server responds with a DHCP offer
that includes all of the settings that the Rack PDU needs for
network communication. The DHCP offer also includes the Vendor
Specific Information option (DHCP option 43). By default, the
Rack 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 Rack PDU communication
with a DHCP server. For more detail about how a DHCP
server is used to configure the network settings for the Rack
PDU, see “DHCP Configuration” in the User’s Guide.
See also
See your DHCP server documentation to add code to
the Vendor Specific Information option.
To disable the APC cookie requirement you can use a local
computer. See “Local access to the control console” on
page 11. 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. See “Remote
access to the control console” on page 11.