PLANET WGSW-52040 - Manual (Page 492)

30-32
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
30.9 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.