R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

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dynamic: Specifies dynamic client entries to be removed.
static: Specifies manual client entries to be removed.
Description
Use the dhcp relay security static command to configure a static client entry, which is the binding
between IP address, MAC address, and Layer 3 interface on the relay agent.
Use the undo dhcp relay security command to remove specified client entries from the relay agent.
No manual client entry is configured on the DHCP relay agent by default.
• When using the dhcp relay security static command to bind an interface to a static client entry,
make sure that the interface is configured as a DHCP relay agent; otherwise, entry conflicts may
occur.
• The undo dhcp relay security interface command is used to remove all the dynamic client entries
from the interface.
Related commands: display dhcp relay security.
Examples
# Bind DHCP relay interface GigabitEthernet 0/1 to IP address 10.10.1.1 and MAC address
0005-5d02-f2b3 of the client.
<Sysname> system-view
[Sysname] dhcp relay security static 10.10.1.1 0005-5d02-f2b3 interface GigabitEthernet
0/1
dhcp relay security refresh enable
Syntax
dhcp relay security refresh enable
undo dhcp relay security refresh enable
View
System view
Default level
2: System level
Parameters
None
Description
Use the dhcp relay security refresh enable command to enable the DHCP relay agent to periodically
refresh dynamic client entries.
Use the undo dhcp relay security refresh enable command to disable periodic refresh of dynamic client
entries.
By default, the DHCP relay agent is enabled to periodically refresh dynamic client entries.
If you disable the DHCP relay agent from periodically refreshing dynamic client entries, such entries do
not age automatically. Therefore, if a client relinquishes its IP address, you need to manually remove the
corresponding dynamic client entry on the DHCP relay agent.
Related commands: dhcp relay security tracker and dhcp relay security static.