Chapter 16
| IP Services
Dynamic Host Configuration Protocol
– 650 –
◆ By default, DHCP option 66/67 parameters are not carried in a DHCP server
reply. To ask for a DHCP reply with option 66/67 information, the DHCP client
request sent by this switch includes a “parameter request list” asking for this
information. Besides, the client request also includes a “vendor class identifier”
that allows the DHCP server to identify the device, and select the appropriate
configuration file for download. This information is included in Option 55 and
124.
◆ The server should reply with the TFTP server name and boot file name.
◆ Note that the vendor class identifier can be formatted in either text or
hexadecimal, but the format used by both the client and server must be the
same.
Parameters
These parameters are displayed:
◆ VLAN – ID of configured VLAN.
◆ Vendor Class ID – The following options are supported when the check box is
marked to enable this feature:
■
Default – The default string is the model number.
■
Tex t – A text string. (Range: 1-32 characters)
■
Hex – A hexadecimal value. (Range: 1-64 characters)
Table 38: Options 60, 66 and 67 Statements
Option
Statement
Keyword Parameter
60 vendor-class-identifier a string indicating the vendor class identifier
66 tftp-server-name a string indicating the tftp server name
67 bootfile-name a string indicating the bootfile name
Table 39: Options 55 and 124 Statements
Option
Statement
Keyword Parameter
55 dhcp-parameter-request-list a list of parameters, separated by ','
124 vendor-class-identifier a string indicating the vendor class identifier
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