Disabling Dhcp Snooping On An Interface; Configuring Option 82 - HPE FlexNetwork 10500 Series Configuration Manual

Configuring basic DHCP snooping in a VXLAN network (DHCP server at a remote site)
Step
1. Enter system view.
2. Enter VSI view.
3. Configure the VXLAN tunnel
interfaces as the DHCP
snooping trusted interface.
4. (Optional.) Enable recording
of client information in DHCP
snooping entries on the ACs
mapped to the VSI and
XLAN tunnel interfaces
assigned to the VSI.

Disabling DHCP snooping on an interface

About disabling DHCP snooping on an interface
This feature allows you to narrow down the interface range where DHCP snooping takes effect. For
example, to make DHCP snooping enable globally except for a specific interface, you can enable
DHCP snooping globally and disable DHCP snooping on the target interface.
Procedure
To disable DHCP snooping on an interface:
Step
1. Enter system view.
2. Enter interface view.
3. Disable DHCP
snooping on the
interface.

Configuring Option 82

Follow these guidelines when you configure Option 82:
•
The Option 82 configuration on a Layer 2 Ethernet interface that has been added to an
aggregation group does not take effect unless the interface leaves the aggregation group.
•
To support Option 82, you must configure Option 82 on both the DHCP server and the DHCP
snooping device. For information about configuring Option 82 on the DHCP server, see
"Enabling handling of Option
Command
system-view
vsi vsi-name
dhcp snooping trust tunnel
dhcp snooping binding record
Commands
system-view
interface interface-type
interface-number
dhcp snooping disable
82."
95
Remarks
N/A
N/A
By default, all ports are untrusted
after DHCP snooping is enabled.
This command sets all VXLAN
tunnel interfaces in the VSI as
DHCP snooping trusted
interfaces.
By default, the recording of DHCP
snooping entries is disabled.
Remarks
N/A
N/A
By default:
•
If you enable DHCP snooping globally or
for a VLAN, DHCP snooping is enabled
on all interfaces on the device or on all
interfaces in the VLAN.
•
If you do not enable DHCP snooping
globally or for a VLAN, DHCP snooping is
disabled on all interfaces on the device or
on all interfaces in the VLAN.