CLI Reference Guide-R04

Chapter 1 | Initial Switch Configuration
Automatic Installation of Operation Code and Configuration Settings
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◆ If the switch does not receive a DHCP(v6) response prior to completing the
bootup process, it will continue to send a DHCP(v6) client request once a
minute. These requests will only be terminated if the switch’s address is
manually configured, but will resume if the address mode is set back to
DHCP(v6).
DHCP Daemon
To successfully transmit a bootup configuration file to the switch, the DHCP
daemon (using a Linux based system for this example) must be configured with the
following information:
◆ Options 60, 66 and 67 statements can be added to the 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 these items, 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 following configuration example is provided for a Linux-based DHCP daemon
(dhcpd.conf file). In the “Vendor class” section, the server will always send Option
66 and 67 to tell the switch to download the “test” configuration file from server
192.168.255.101.
ddns-update-style ad-hoc;
default-lease-time 600;
max-lease-time 7200;
log-facility local7;
Table 1: 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 2: Options 55 and 124 Statements
Option
Statement
Keyword Parameter
55 dhcp-parameter-request-list a list of parameters, separated by a comma ', '
124 vendor-class-identifier a string indicating the vendor class identifier