Web Management Guide-R04
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Web Configuration
- Using the Web Interface
- Basic Management Tasks
- Displaying System Information
- Displaying Hardware/Software Versions
- Configuring Support for Jumbo Frames
- Displaying Bridge Extension Capabilities
- Managing System Files
- Setting the System Clock
- Configuring the Console Port
- Configuring Telnet Settings
- Displaying CPU Utilization
- Configuring CPU Guard
- Displaying Memory Utilization
- Resetting the System
- Interface Configuration
- VLAN Configuration
- Address Table Settings
- Spanning Tree Algorithm
- Congestion Control
- Class of Service
- Layer 2 Queue Settings
- Layer 3/4 Priority Settings
- Setting Priority Processing to IP Precedence/DSCP or CoS
- Mapping Ingress DSCP Values to Internal DSCP Values
- Mapping CoS Priorities to Internal DSCP Values
- Mapping Internal DSCP Values to Egress CoS Values
- Mapping IP Precedence Values to Internal DSCP Values
- Mapping IP Port Priority to Internal DSCP Values
- Quality of Service
- VoIP Traffic Configuration
- Security Measures
- AAA Authentication, Authorization and Accounting
- Configuring User Accounts
- Web Authentication
- Network Access (MAC Address Authentication)
- Configuring HTTPS
- Configuring the Secure Shell
- Access Control Lists
- Filtering IP Addresses for Management Access
- Configuring Port Security
- Configuring 802.1X Port Authentication
- DoS Protection
- DHCPv4 Snooping
- DHCPv6 Snooping
- IPv4 Source Guard
- IPv6 Source Guard
- ARP Inspection
- Application Filter
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting Community Access Strings
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Configuring Local SNMPv3 Users
- Configuring Remote SNMPv3 Users
- Specifying Trap Managers
- Creating SNMP Notification Logs
- Showing SNMP Statistics
- Remote Monitoring
- Switch Clustering
- Setting a Time Range
- Ethernet Ring Protection Switching
- OAM Configuration
- Connectivity Fault Management
- Configuring Global Settings for CFM
- Configuring Interfaces for CFM
- Configuring CFM Maintenance Domains
- Configuring CFM Maintenance Associations
- Configuring Maintenance End Points
- Configuring Remote Maintenance End Points
- Transmitting Link Trace Messages
- Transmitting Loop Back Messages
- Transmitting Delay-Measure Requests
- Displaying Local MEPs
- Displaying Details for Local MEPs
- Displaying Local MIPs
- Displaying Remote MEPs
- Displaying Details for Remote MEPs
- Displaying the Link Trace Cache
- Displaying Fault Notification Settings
- Displaying Continuity Check Errors
- OAM Configuration
- UDLD Configuration
- LBD Configuration
- Smart Pair Configuration
- Multicast Filtering
- Overview
- Layer 2 IGMP (Snooping and Query for IPv4)
- Configuring IGMP Snooping and Query Parameters
- Specifying Static Interfaces for a Multicast Router
- Assigning Interfaces to Multicast Services
- Setting IGMP Snooping Status per Interface
- Filtering IGMP Query Packets and Multicast Data
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Multicast VLAN Registration for IPv4
- Multicast VLAN Registration for IPv6
- Basic IP Functions
- IP Configuration
- General IP Routing
- IP Services
- Appendices
- Glossary
Chapter 12
| Security Measures
DHCPv4 Snooping
– 371 –
DHCP Snooping
Global Configuration
Use the IP Service > DHCP > Snooping (Configure Global) page to enable DHCP
Snooping globally on the switch, or to configure MAC Address Verification.
Parameters
These parameters are displayed:
General
◆ DHCP Snooping Status – Enables DHCP snooping globally. (Default: Disabled)
◆ DHCP Snooping MAC-Address Verification – Enables or disables MAC
address verification. If the source MAC address in the Ethernet header of the
packet is not same as the client's hardware address in the DHCP packet, the
packet is dropped. (Default: Enabled)
◆ DHCP Snooping Rate Limit – Sets the maximum number of DHCP packets
that can be trapped by the switch for DHCP snooping. (Range: 1-2048 packets/
second)
Information
◆ DHCP Snooping Information Option Status – Enables or disables DHCP
Option 82 information relay. (Default: Disabled)
◆ DHCP Snooping Information Option Sub-option Format – Enables or
disables use of sub-type and sub-length fields in circuit-ID (CID) and remote-ID
(RID) in Option 82 information. (Default: Extra Subtype Included)
◆ DHCP Snooping Information Option Remote ID – Specifies the MAC address,
IP address, or arbitrary identifier of the requesting device (i.e., the switch in this
context).
■
MAC Address – Inserts a MAC address in the remote ID sub-option for the
DHCP snooping agent (i.e., the MAC address of the switch’s CPU). This
attribute can be encoded in Hexadecimal or ASCII.
■
IP Address – Inserts an IP address in the remote ID sub-option for the
DHCP snooping agent (i.e., the IP address of the management interface).
This attribute can be encoded in Hexadecimal or ASCII.
■
string - An arbitrary string inserted into the remote identifier field.
(Range: 1-32 characters)
■
TR-101 - The remote ID generated by the switch as based on TR-101 syntax
(R-124, Access_Node_ID).
■
IP Address - Specifies the switch’s IP address as the node identifier.
■
System Name - Specifies the system name as the node identifier.