Basic Configuration Of Dhcp Snooping/Option82 - Zte ZXR10 2900 Series User Manual

ZXR10 2900 Series User Manual
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nique to provide more additional information, and then strengthen
the network safety ability.
Basic Configuration of DHCP
Snooping/Option82
Configure the following commands to support Snooping and Op-
tion82 functions.
Command
clear dhcp snp-bind-entry
zte(cfg)#
{all | port <portname>| mac
<HH.HH.HH.HH.HH.HH>}
clear dhcp option82 ani
zte(cfg)#
set dhcp snooping-and-optio
zte(cfg)#
n82 {enable | disable}
set dhcp port <portname>{ser
zte(cfg)#
ver | cascade | client}
set dhcp snooping {add |
zte(cfg)#
delete}{port <portlist>|trunk<trunklist>}
set dhcp option82 {add |
zte(cfg)#
delete}{port <portlist>|trunk<trunklist>}
Function
This clears DHCP
Snooping dynamic
binding table.
This clears the switch
accessing node
identifier.
This enables/disables
DHCP, the default is
disable.
This configures DHCP
attribute of port.
There are three kinds of
attributes of the port:
server port, cascade
port and client port.
Only server port is the
trusted port.
If the switch is
connected with DHCP
relay device and the
uplink port is setting as
trunk, then the uplink
port attribute must be
trusted.
The trusted port
receives and transmits
DHCP Offer normally,
but the untrusted port
discards DHCP Offer
packet. This ensures
that the client terminal
can obtain IP address
from the legal DHCP
server.
This enables/disables
DHCP Snooping
function based on
port.
This enables/disables
DHCP Option82 function
based on port.