3Com S7902E Command Reference Manual - page 538
2-3
Parameters
circuit-id
: Padding content for the user-defined circuit ID sub-option, a case-sensitive string of 3 to 63
characters.
Description
Use the
dhcp relay information circuit-id string
command to configure the padding content for the
user-defined circuit ID sub-option.
Use the
undo dhcp relay information circuit-id string
command to restore the default.
By default, the padding content for the circuit ID sub-option depends on the padding format of Option
82.
Note that:
After you configure the padding content for the circuit ID sub-option using this command, ASCII is
adopted as the code type.
Related commands:
dhcp relay information format
.
Examples
# Configure the padding content for the circuit ID sub-option as
company001
.
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] dhcp relay information circuit-id string company001
dhcp relay information enable
Syntax
dhcp relay information enable
undo dhcp relay information enable
View
Interface view
Default Level
2: System level
Parameters
None
Description
Use the
dhcp relay information enable
command to enable the relay agent to support Option 82.
Use the
undo dhcp relay information enable
command to disable Option 82 support.
By default, Option 82 support is disabled on DHCP relay agent.
Examples
# Enable Option 82 support on the relay agent.
[Sysname] interface vlan-interface 1