3com S7906E Guide De Référence

 

2-3 

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

characters. 

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

user-defined circuit ID sub-option. 

Use the undo dhcp relay 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:  

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

adopted as the code type. 

Related commands: dhcp relay information format. 

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

<Sysname> system-view 

[Sysname] interface vlan-interface 1 

[Sysname-Vlan-interface1] dhcp relay information circuit-id string company001 

Interface view 

2: System level 

None 

Use the dhcp relay information enable command to enable the relay agent to support Option 82.  

Use the undo dhcp relay information enable command to disable Option 82 support. 

By default, Option 82 support is disabled on DHCP relay agent. 

# Enable Option 82 support on the relay agent. 

<Sysname> system-view 

[Sysname] interface vlan-interface 1