APC 200 - Page 58

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USER’S GUIDE
NetBotz Rack Monitor 200
52
DHCP response options
Each valid DHCP response contains options that provide the TCP/IP settings that the
Main Module needs to operate on a network plus other information that affects Main
Module operation.
Vendor Specific Information (option 43). The Main Module (NetBotz Rack Monitor
200) requires option 43 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 Main Module that a DHCP server is configured to
service APC devices. By default, the DHCP response must contain the APC Cookie
for the Main Module to accept the lease.
DHCP &
BOOTP
The default setting. The Main Module 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 Main Module.
Click Next>> to configure the same settings that are on the BOOTP Configuration
and DHCP Configuration pages
1
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 Main Module, which uniquely identifies it on the local area
network (LAN)
•User Class: The name of the application firmware module
To disable the requirement for an APC cookie, see DHCP.