H3C Technologies H3C S7500E Series Switches - Manual (Page 85)

8-4
If a client’s
requesting message
has…
Handling
strategy
Padding format The DHCP snooping device will…
Drop Random Drop the message.
Keep Random
Forward the message without changing Option
82.
normal
Forward the message after replacing the
original Option 82 with the Option 82 padded in
normal format.
verbose
Forward the message after replacing the
original Option 82 with the Option 82 padded in
verbose format.
Option 82
Replace
user-defined
Forward the message after replacing the
original Option 82 with the user-defined Option
82.
— normal
Forward the message after adding the Option
82 padded in normal format.
— verbose
Forward the message after adding the Option
82 padded in verbose format.
no Option 82
— user-defined
Forward the message after adding the
user-defined Option 82.
The handling strategy and padding format for Option 82 on the DHCP snooping device are the same
as those on the relay agent.
Configuring DHCP Snooping Basic Functions
Follow these steps to configure DHCP snooping basic functions:
To do… Use the command… Remarks
Enter system view system-view —
Enable DHCP snooping dhcp-snooping
Required
Disabled by default.