APC P D U User's Guide download pdf (Page 63)

USER’S GUIDE

Switched Rack PDU

DHCP response options

Each valid DHCP response contains options that provide the TCP/IP settings that the

Rack PDU needs to operate on a network, and other information that affects the Rack

PDU’s operation.

Vendor Specific Information (option 43). The Rack PDU uses this option in a DHCP

response to determine whether the DHCP response is valid. This option contains up to

two APC-specific options in a TAG/LEN/DATA format: the APC Cookie and the Boot

Mode Transition.

• APC Cookie. Tag 1, Len 4, Data “1APC”

Option 43 communicates to the Rack PDU that a DHCP server is configured to

service APC devices. By default, this DHCP response option must contain the APC

cookie for the Rack PDU to accept the lease.

DHCP

BOOTP

The default setting. The Switched Rack PDU tries to obtain its TCP/IP settings from a

BOOTP server first, and then, if it cannot discover a BOOTP server, from a DHCP

server. If it obtains its TCP/IP settings from either server, it switches this setting to

BOOTP or DHCP, depending on the type of server that supplied the TCP/IP settings

to the Switched Rack PDU.

Click Next>> to configure the same settings that are on the BOOTP Configuration

and DHCP Configuration pages

and to specify that the DHCP and BOOTP setting

be retained after either type of server provides the TCP/IP values.

Setting Description

1. The default values for these three settings on the configuration pages generally do not need to be

changed:

•Vendor Class: APC

•Client ID: The MAC address of the Switched Rack PDU, which uniquely identifies it on the local

area network (LAN)

•User Class: The name of the application firmware module

To disable the requirement of an APC cookie, see DHCP.

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APC P D U User's Guide Page 63