Table 183: options 60, 66 and 67 statements, Table 184: options 55 and 124 statements – LevelOne GTL-2691 User Manual
Page 1362
C
HAPTER
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| DHCP Commands
DHCP Client
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D
EFAULT
S
ETTING
Class identifier option enabled, with the name GTL-2691
C
OMMAND
M
ODE
Interface Configuration (VLAN)
C
OMMAND
U
SAGE
◆
Use this command without any keyword to restore the default setting.
◆
This command is used to identify the vendor class and configuration of
the switch to the DHCP server, which then uses this information to
decide on how to service the client or the type of information to return.
◆
The general framework for this DHCP option is set out in RFC 2132
(Option 60). This information is used to convey configuration settings
or other identification information about a client, but the specific string
to use should be supplied by your service provider or network
administrator. Options 60, 66 and 67 statements can be added to the
server daemon’s configuration file.
◆
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” set by the ip dhcp client class-id
command 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 using the ip dhcp client class-id command, but the
format used by both the client and server must be the same.
Table 183: 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 184: 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