Dhcp-Snooping Trust - H3C S7500E Series Command Manual

Command Manual – DHCP
H3C S7500E Series Ethernet Switches
Parameters
drop: Drops the requesting message containing Option 82.
keep: Forwards the requesting message containing Option 82 without changing Option
82.
replace: Forwards the requesting message containing Option 82 after replacing the
original Option 82 with the one padded in specified format.
Description
Use the dhcp-snooping information strategy command to configure the handling
strategy for Option 82 in requesting messages.
Use the undo dhcp-snooping information strategy command to restore the default
setting.
By default, the handling strategy for Option 82 in requesting messages is replace.
Examples
# Configure the handling strategy for Option 82 in requesting messages as keep.
<Sysname> system-view
[Sysname] interface gigabitethernet2/0/1
[Sysname-GigabitEthernet2/0/1] dhcp-snooping information enable
[Sysname-GigabitEthernet2/0/1] dhcp-snooping information strategy keep

4.1.5 dhcp-snooping trust

Syntax
dhcp-snooping trust [ no-user-binding ]
undo dhcp-snooping trust
View
Ethernet port view
Parameters
no-user-binding: Specifies the port not to record the clients' IP-to-MAC bindings in
DHCP requests it receives. The command without this keyword allows the port to
record the IP-to-MAC bindings of clients.
Description
Use the dhcp-snooping trust command to set a port as trusted.
Use the undo dhcp-snooping trust command to restore the default state of a port.
All ports are untrusted by default.
Chapter 4 DHCP Snooping Configuration Commands
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