Planet Networking & Communication SGS-6340-24T4S Command Manual page 632

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.
Switch(config)#ip dhcp snooping information option self-defined subscriber-id format hex
35.23 ip dhcp snooping information option subscriber-id
Command:
ip dhcp snooping information option subscriber-id {standard | <circuit-id>}
no ip dhcp snooping information option subscriber-id
Function:
Set the suboption1 (circuit ID option) content of option 82 added by DHCP request packets (they are received by the
port). The no command sets the additive suboption1 (circuit ID option) format of option 82 as standard.
Parameters:
standard means the standard format of VLAN name and physical port name, such as Vlan2+Ethernet1/12.
<circuit-id> means the circuit-id content of option 82 specified by users, its length can not exceed 64 characters.
Command Mode:
Port Mode
Default:
Use standard format to set circuit-id.
Usage Guide:
The additive option 82 needs to associate with third-party DHCP server, it is used to specify the circuit-id content by
user when the standard circuit-id format can not satisfy server's request.
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