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Ip dhcp snooping binding – Allied Telesis AT-8100 Series User Manual

Page 651

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AT-8100 Switch Command Line User’s Guide

651

IP DHCP SNOOPING BINDING

Syntax

ip dhcp snooping binding

ipaddr macaddr (vlan vid)

(interface port) (expiry expiry-time)

Parameters

ipaddr

Specifies the client’s IP address.

macaddr

Specifies a client’s MAC address in the HHHH.HHHH.HHHH
format.

vlan

Specifies a VLAN ID for the entry. The range is from 1 to 4094.

interface

Indicates the port the client is connected to. The port can be a
switch port or a static or dynamic link aggregation (a channel
group).

expiry

Specifies the expiry time for the entry. The range is 5 to 21473647
seconds.

Mode

Privileged Exec mode

Description

Use this command to manually add a dynamic-like entry (with an expiry
time) to the DHCP snooping database. After it is added to the database,
this entry is treated as dynamic entry and is stored in the DHCP snooping
database backup file. This command is not stored in the switch’s running
configuration.

Caution

If you remove entries from the database for the current clients, they
lose IP connectivity until they request and receive a new DHCP
lease. If you clear all entries, all clients connected to untrusted ports
lose connectivity.

To add or remove static entries from the database, use the IP SOURCE
BINDING command. See “IP SOURCE BINDING” on page 664.