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63NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting
2. When the Network Management Card reboots, the BOOTP server provides it with the TCP/IP
settings.
– If you specified a bootup file name, the Network Management Card attempts to transfer that
file from the BOOTP server using TFTP or FTP. The Network Management Card assumes all
settings specified in the bootup file.
– If you did not specify a bootup file name, the Network Management Card can be configured
remotely by using the control console or the Web interface (user name and password are both
apc, by default).
To create the bootup file, see your BOOTP server documentation.
DHCP. You can use an RFC2131/RFC2132-compliant DHCP server to configure the TCP/IP settings for
the Network Management Card.
This section briefly summarizes the Network Management Card communication with a
DHCP server. For more detail about how a DHCP server is used to configure the network
settings for a Network Management Card, see “DHCP Configuration” in the NetworkAIR
FM DX 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 64.
To change the Web interface setting Require vendor specific cookie to accept
DHCP Address, which is enabled by default, first choose DHCP under the
TCP/IP Configuration heading by selecting the Administration tab, the
Network option on the top menu bar, and TCP/IP on the left navigation menu. To
disable the APC cookie requirement, click Next to access the DHCP
Configuration page, and unmark the checkbox "Require vendor specific cookie to
accept DHCP Address."