Web Management Guide-R07
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Introduction
- Key Features
- Description of Software Features
- Configuration Backup and Restore
- Authentication
- Access Control Lists
- Port Configuration
- Rate Limiting
- Port Mirroring
- Port Trunking
- Storm Control
- Static MAC Addresses
- IP Address Filtering
- IEEE 802.1D Bridge
- Store-and-Forward Switching
- Spanning Tree Algorithm
- Virtual LANs
- IEEE 802.1Q Tunneling (QinQ)
- Traffic Prioritization
- Quality of Service
- IP Routing
- Address Resolution Protocol
- Multicast Filtering
- Link Layer Discovery Protocol
- System Defaults
- Introduction
- 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
- Using Cloud Management
- Interface Configuration
- VLAN Configuration
- Address Table Settings
- Spanning Tree Algorithm
- Congestion Control
- Class of Service
- 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
- DHCP Snooping
- IPv4 Source Guard
- ARP Inspection
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Power over Ethernet
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Setting Community Access Strings
- 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
- 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)
- Filtering and Throttling MLD Groups
- Filtering MLD Query Packets on an Interface
- IP Tools
- IP Configuration
- General IP Routing
- Unicast Routing
- Overview
- Configuring the Routing Information Protocol
- Configuring General Protocol Settings
- Clearing Entries from the Routing Table
- Specifying Network Interfaces
- Specifying Passive Interfaces
- Specifying Static Neighbors
- Configuring Route Redistribution
- Specifying an Administrative Distance
- Configuring Network Interfaces for RIP
- Displaying RIP Interface Settings
- Displaying Peer Router Information
- Resetting RIP Statistics
- IP Services
- Appendices
- Glossary
Chapter 12
| Security Measures
DHCP Snooping
– 312 –
DHCP Snooping
Global Configuration
Use the Security > 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)
Information
◆ DHCP Snooping Information Option Status – Enables or disables DHCP
Option 82 information relay. (Default: Disabled)
◆ DHCP Snooping Information Option Sub-option Format – Select either to
include (Extra Subtype Included) or exclude (No Extra Subtype Included) the
extra subtype (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.
◆ DHCP Snooping Information Option Remote ID TR101 VLAN Field – Adds
“:VLAN” in TR101 field for untagged packets.
The format for TR101 option 82 is: “<IP> eth <SID>/<PORT>[:<VLAN>]”. Note
that the SID (Switch ID) is always 0. By default the PVID is added to the end of
the TR101 field for untagged packets. For tagged packets, the VLAN ID is always
added.