User`s guide
®
USER’S GUIDE
Metered Rack PDU
44
Setting Description
Manual The IP address, subnet mask, and default gateway must be configured manually.
Click Next>>, and enter the new values.
BOOTP A BOOTP server provides the TCP/IP settings. At 32-second intervals, the Rack PDU
requests network assignment from any BOOTP server:
• If it receives a valid response, it starts the network services.
• If it finds a BOOTP server, but a request to that server fails or times out, the Rack
PDU stops requesting network settings until it is restarted.
• By default, if previously configured network settings exist, and the Rack PDU
receives no valid response to five requests (the original and four retries), it uses the
previously configured settings so that it remains accessible.
Click Next>> to access the BOOTP Configuration page to change the number of
retries or the action to take if all retries fail
1
:
• Maximum retries: Enter the number of retries that will occur when no valid response
is received, or zero (0) for an unlimited number of retries.
• If retries fail: Select Use prior settings (the default) or Stop BOOTP request.
DHCP At 32-second intervals, the Rack PDU requests a network assignment from any
DHCP server. By default, the number of retries is unlimited.
• If the Rack PDU receives a valid response, by default it requires the APC cookie
from the DHCP server in order to accept the lease and start the network services.
• If it finds a DHCP server, but the request to that server fails or times out, the Rack
PDU stops requesting network settings until it is restarted.
To change these values, click Next>> for the DHCP Configuration page
1
:
• Require vendor specific cookie to accept DHCP Address: Disable or enable the
requirement that the DHCP server provide the APC cookie.
• Maximum retries: Enter the number of retries that will occur when no valid response
is received, or zero (0) for an unlimited number of retries.
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 Rack PDU, which uniquely identifies it on the local area
network (LAN)
•User Class: The name of the application firmware module