Alcatel-Lucent 6850-48 参照ガイド
DHCP Relay Commands
OmniSwitch CLI Reference Guide
September 2009
page 36-27
ip helper dhcp-snooping option-82 format
Configures the type of information that is inserted in both the Circuit ID and Remote ID suboption fields
of the Option-82 field.
of the Option-82 field.
ip helper dhcp-snooping option-82 data-insertion format {base-mac | system-name | user-string
string | interface-alias | auto-interface-alias}
string | interface-alias | auto-interface-alias}
Syntax Definitions
base-mac
The base MAC address of the switch.
system-name
The system name of the switch.
string
A user-defined text string up to 64 characters.
interface-alias
The alias configured for the interface.
auto-interface-alias
The switch automatically generates the interface-alias in the following
format: SystemName_slot_port.
format: SystemName_slot_port.
Defaults
Platforms Supported
OmniSwitch 6400, 6850, 6855, 9000, 9000E
Usage Guidelines
• The string parameter specifies user-defined information to insert into the Circuit ID and Remote ID
fields.
• When entering a string for user-defined Option-82 information, quotes are required around ambiguous
characters, such as hex characters, spaces, etc, so they are interpreted as text. For example, the string
“Building B Server” requires quotes because of the spaces between the words.
“Building B Server” requires quotes because of the spaces between the words.
• The interface-alias parameter will use the alias configured with the interfaces alias command. If no
alias is configured a NULL string will be inserted.
• A maximum of 63 characters can be inserted when using the interface-alias and auto-interface-alias
commands, remaining characters will be truncated.
• The Option-82 format option is a global setting, the format specified will be applied to all ports on the
switch.
• The data specified with this command is added to the Circuit ID and Remote ID fields only when
DHCP Option-82 data insertion is enabled for the switch.
• When DHCP Snooping is enabled at the switch level, Option-82 data insertion is enabled by default.
parameter
value
base-mac | system-name |
user-string string
user-string string
base-mac