3com S7906E Guide De Référence

 

4-3 

Ethernet port view 

2: System level 

vlan vlan-id: Specifies a VLAN ID, in the range of 1 to 4094. 

circuit-id: Padding content for the user-defined circuit ID sub-option, a case-sensitive string of 3 to 63 

characters. 

Use the dhcp-snooping information circuit-id string command to configure the padding content for 

the user-defined circuit ID sub-option. 

Use the undo dhcp-snooping information circuit-id string command to restore the default. 

By default, the padding content for the circuit ID sub-option depends on the padding format of Option 

82. 

Note that: 

z 

After you configure the padding content for the circuit ID sub-option using this command, ASCII is 

adopted as the code type. 

z 

If a VLAN is specified, the configured circuit ID sub-option only takes effect within the VLAN; if no 

VLAN is specified, the configured circuit ID sub-option takes effect in all VLANs. The former case 

has a higher priority; that is, the circuit ID sub-option specified for a VLAN will be padded for 

packets within the VLAN. 

Related commands: dhcp-snooping information format. 

# Configure the global padding content for the user-defined circuit ID sub-option as company001. 

<Sysname> system-view 

[Sysname] interface gigabitethernet 2/0/1 

[Sysname-GigabitEthernet2/0/1] dhcp-snooping information circuit-id string company001 

Ethernet port view 

2: System level