Ip Dhcp Snooping Binding - Allied Telesis x510-28GTX Command Reference Manual

DHCP S C
NOOPING OMMANDS

IP DHCP SNOOPING BINDING

ip dhcp snooping binding
Overview Use this command to manually add a dynamic-like entry (with an expiry time) to
the DHCP snooping database. Once added to the database, this entry is treated as
a dynamic entry, and is stored in the DHCP snooping database backup file. This
command is not stored in the switch's running configuration.
Use the no variant of this command to delete a dynamic entry for an IP address
from the DHCP snooping database, or to delete all dynamic entries from the
database.
CAUTION
lose IP connectivity until they request and receive a new DHCP lease. If you clear
all entries, all clients connected to untrusted ports will lose connectivity.
ip dhcp snooping binding <ipaddr> [<macaddr>] vlan <vid>
Syntax
interface <port> expiry <expiry-time>
no ip dhcp snooping binding [<ipaddr>]
Mode Privileged Exec
Usage Note that dynamic entries can also be deleted from the DHCP snooping database
by using the
To add or remove static entries from the database, use the
command.
Example To restore an entry in the DHCP snooping database for a DHCP client with the IP
address 192.168.1.2, MAC address 0001.0002.0003, on port1.0.6 of vlan6, and with
an expiry time of 1 hour, use the commands:
awplus#
vlan 6 interface port1.0.6 expiry 3600
Related clear ip dhcp snooping binding
Commands
ip source binding
show ip dhcp snooping binding
C613-50170-01 Rev B
: If you remove entries from the database for current clients, they will
Parameter Description
<ipaddr>
Client's IP address.
<macaddr>
Client's MAC address in HHHH.HHHH.HHHH format.
<vid>
The VLAN ID for the entry, in the range 1 to 4094.
<port>
The port the client is connected to. The port can be a switch port,
or a static or dynamic link aggregation (channel group).
<expiry-time>
The expiry time for the entry, in the range 5 to 2147483647
seconds.
clear ip dhcp snooping binding
ip dhcp snooping binding 192.168.1.2 0001.0002.0003
Command Reference for x510 Series
AlliedWare Plus™ Operating System - Version 5.4.7-1.x
command.
ip source binding
2004