3com WX3000 Manuel D’Utilisation

 

3-7 

Enter system view 

— 

Enable DHCP-snooping Option 
82 support 

Required 

By default, DHCP snooping 
Option 82 support is disabled.  

 

Follow these steps to configure a handling policy for DHCP packets with Option 82: 

Enter system view 

Optional 

Configure a global handling 
policy for requests that contain 
Option 82  

dhcp-snooping information 
strategy { drop | keep | replace } 

Optional 

The default handling 
policy is replace.  

Enter Ethernet port view 

interface interface-type 
interface-number 

— 

Configure a handling policy for 
requests that contain Option 82 
received on the specified 
interface 

dhcp-snooping information 
strategy { drop | keep | replace } 

Optional 

The default policy is 
replace. 

 

If a handling policy is configured on a port, this configuration overrides the globally configured handling 

policy for requests received on this port, while the globally configured handling policy applies on those 

ports where a handling policy is not natively configured. 

 

The device supports the HEX or ASCII format for the Option 82 field. 

 Follow these steps to configure a storage format for the Option 82 field: 

Enter system view 

system-view 

— 

Configure a storage format for 
the Option 82 field 

dhcp-snooping information 
format { hex | ascii } 

Optional 

By default, the format is hex.