APC ACRC103 Specifications download pdf (Page 37)

29InRow RC Operation and Maintenance

DHCP. You can use a RFC2131/RFC2132-compliant DHCP server to configure the TCP/IP settings for

the Network Management Card.

This section summarizes communication between the Network Management Card and a

DHCP server. For more detail about how a DHCP can configure the network settings for a

Network Management Card, see “DHCP Configuration” in the APC InRow RC User’s Guide

on the Utility CD.

1. The Network Management Card sends out a DHCP request that uses the following to identify

itself:

– Vendor Class Identifier (APC by default)

– Client Identifier (by default, the Network Management Card’s MAC address value)

– User Class Identifier (by default, the identification of the Network Management Card’s

application firmware)

2. A properly configured DHCP server responds with a DHCP offer that includes all of the settings

that the Network Management Card needs for network communication. The DHCP offer also

includes the Vendor Specific Information option (DHCP option 43). By default, the Network

Management Card will ignore DHCP offers that do not encapsulate the APC cookie in DHCP

option 43 using the following hexadecimal 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 your DHCP server documentation to add code to the Vendor Specific Information option.

To disable the requirement that a DHCP offer include the APC cookie, use the DHCP Cookie

Is setting in the control console:

Network>TCP/IP>Boot Mode>DHCP only>Advanced>DHCP Cookie Is

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APC ACRC103 Specifications Page 37