APC ACRD200 Installation Manual download pdf (Page 38)

InRow RD Fluid Cooled Operation and Maintenance30

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 server can configure the network settings

for a Network Management Card, see “DHCP Configuration” in the User’s Guide.

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

– A Vendor Class Identifier (APC by default)

– A Client Identifier (by default, the MAC address value of the Network Management Card)

– A User Class Identifier (by default, the identification of the application firmware of the

Network Management Card)

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 the Vendor

Specific Information option 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 change the control console DHCP Cookie Is setting, use the Advanced option

in the TCP/IP menu. See “Remote access to the control console” on page 31.

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).

Local access to the control console

You can use a computer connected to the serial port on the front of the Network Management Card to

access the control console.

1. Select a serial port at the local computer, and disable any service that uses that port.

2. Use the configuration cable to connect the selected port to the serial port on the front panel of the

InRow RD. Use either 940-0103, the 6-ft cable that came with your UPS, or AP9804 (990-1524),

the 15-ft cable available from APC.

3. Run a terminal program (such as HyperTerminal) and configure the selected port for 9600 or

19200 bps, 8 data bits, no parity, 1 stop bit, and no flow control. Save the changes.

4. Press E

NTER to display the User Name prompt.

5. Use apc for the user name and password.

See “Control console” on page 32 to finish the configuration.

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APC ACRD200 Installation Manual Page 38

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