84
dhcp relay information circuit-id
Use dhcp relay information circuit-id to configure the padding mode and padding format for the
Circuit ID sub-option of Option 82.
Use undo dhcp relay information circuit-id to restore the default.
Syntax
dhcp relay information circuit-id { string circuit-id | { normal | verbose [ node-identifier { mac |
sysname | user-defined node-identifier } ] [ interface ] } [ format { ascii | hex } ] }
undo dhcp relay information circuit-id
Default
The padding mode is normal and the padding format is hex.
Views
Interface view
Predefined user roles
network-admin
Parameters
string circuit-id: Specifies the string mode that uses a case-sensitive string of 3 to 63 characters as
the content of the Circuit ID sub-option.
normal: Specifies the normal mode, in which the padding content consists of the VLAN ID and port
number.
verbose: Specifies the verbose mode. The padding content includes the node identifier, interface
information, and VLAN ID. The default node identifier is the MAC address of the access node. The
default interface information consists of the Ethernet type (fixed to eth), chassis number, slot number,
sub-slot number, and interface number.
node-identifier { mac | sysname | user-defined node-identifier }: Specifies the access node
identifier.
• mac: Uses the MAC address of the access node as the node identifier.
• sysname: Uses the device name as the node identifier. You can set the device name by using
the sysname command in system view. The padding format for the device name is always
ASCII regardless of the specified padding format.
NOTE:
If sysname is specified as the node identifier, do not include any spaces when you set the
device name. Otherwise, the DHCP relay agent fails to add or replace Option 82.
• user-defined node-identifier: Uses a case-sensitive string of 1 to 50 characters as the node
identifier. The padding format for the specified character string is always ASCII regardless of
the specified padding format.
interface: Uses the interface name as the interface information. The padding format for the interface
name is always ASCII regardless of the specified padding format.
format: Specifies the padding format for the Circuit ID sub-option.
ascii: Specifies the ASCII padding format.
hex: Specifies the hex padding format.
To Next Page
Loading...
Need help?
General