Setting The Maximum Number Of Dhcp Snooping Users; Establishing The Configuration Task; Enabling Dhcp Snooping - Huawei Quidway S9300 Configuration Manual

3 DHCP Snooping Configuration
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3.6 Setting the Maximum Number of DHCP Snooping Users

This section describes how to set the maximum number of DHCP snooping users. This is because
authorized users cannot access the network when an attacker applies for IP addresses
continuously.

3.6.1 Establishing the Configuration Task

3.6.2 Enabling DHCP Snooping

3.6.3 Setting the Maximum Number of DHCP Snooping Users
3.6.4 (Optional) Configuring MAC Address Security on an Interface
3.6.5 Checking the Configuration
3.6.1 Establishing the Configuration Task
Applicable Environment
To prevent malicious users from applying for IP addresses, you can set the maximum number
of DHDCP snooping users.
When the number of DHCP snooping users reaches the maximum value, users cannot
successfully apply for IP addresses.
Pre-configuration Tasks
Before setting the maximum number of DHCP snooping users, complete the following tasks:
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Data Preparation
To set the maximum number of DHCP snooping users, you need the following data.
No.
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3.6.2 Enabling DHCP Snooping
3-18
Run the display dhcp option82 interface interface-type interface-number command to
check the status of the Option 82 field.
Enabling DHCP snooping globally
Enabling check of the DHCP snooping binding table
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Quidway S9300 Terabit Routing Switch
Configuration Guide - Security
Data
Type and number of the interface, VLAN ID,
and maximum number of DHCP snooping
users
Issue 06 (2010–01–08)