PLANET WGSW-52040 - Manual (Page 538)

33-78
Usage Guide:
After configure this command, if users do not configure circuit-id on port, it will create circuit-id suboption for option82
according to self-defined method. Self-defined format of circuit-id: if self-defined subscriber-id 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 snooping information option delimiter configuration).
Example:
Set self-defined method of circuit-id suboption as vlan, port, mac and remote-mac for option82.
Switch(config)#ip dhcp snooping information option self-defined subscriber-id vlan port id remote-mac
33.22 ip dhcp snooping information option self-defined
subscriber-id format
Command:
ip dhcp snooping information option self-defined subscriber-id format [ascii | hex]
Function:
Set self-defined format of circuit-id for snooping option82.
Parameters:
None.
Command Mode:
Global Mode
Default:
ascii.
Usage Guide:
self-defined format uses ip dhcp snooping information option type self-defined subscriber-id to create circuit-id
format.
Example:
Set self-defined format of circuit-id as hex for snooping option82.