mac

292
suboption by themselves.
Parameters: WORD the defined character string of circuit-id by themselves, the
maximum length is 64.
Command Mode: Global Mode
Default: Using standard method.
Usage Guide: After configure this command, if users do not configure circuit-id on
interface, it will create circuit-id suboption for option82 according to self-defined method.
Self-defined format of circuit-id: if self-defined format is ascii, the filled format of vlan such
as ―Vlan2‖, the format of port such as ―Ethernet1/1‖, the format of mac and remote-mac
such as ―00-02-d1-2e-3a-0d‖. If self-defined format is hex, the filled format of vlan
occupies 2 bytes, port occupies 4 bytes, a byte means slot (for chassis switch, it means
slot ID, for box switch, it is 1), a byte means Module (the default is 0), two bytes means
port ID beginning from 1, mac and remote-mac occupy 6 bytes. Each option will be filled
to packets according to the configured order of the commands and divide them with
delimiter (delimiter is ip dhcp relay information option delimiter configuration).
Example: Set self-defined method of circuit-id suboption as port, mac for option82.
Switch(config)# ip dhcp relay information option self-defined subscriber-id port id switch-id
mac
17.9 ip dhcp relay information option self-defined
subscriber-id format
Command: ip dhcp relay information option self-defined subscriber-id format [ascii
| hex]
Function: Set self-defined format of circuit-id for relay option82.
Parameters: None.
Command Mode: Global Mode
Default: ascii.
Usage Guide: self-defined format use ip dhcp relay information option type self-defined
subscriber-id to create circuit-id format.
Example: Set self-defined format of circuit-id as hex for relay option82.
Switch(config)# ip dhcp relay information option self-defined subscriber-id format hex
17.10 ip dhcp relay information option subscriber-id
Command: ip dhcp relay information option subscriber-id {standard | <circuit-id>}