ECS4100 Series Web Management Guide-R07
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
- 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
- DHCPv6 Snooping
- IPv4 Source Guard
- IPv6 Source Guard
- ARP Inspection
- Application Filter
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Power over Ethernet
- 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
- 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 Packets on an Interface
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Configuring MLD Snooping and Query Parameters
- Setting Immediate Leave Status for MLD Snooping per Interface
- Specifying Static Interfaces for an IPv6 Multicast Router
- Assigning Interfaces to IPv6 Multicast Services
- Filtering MLD Query Packets on an Interface
- Showing MLD Snooping Groups and Source List
- Displaying MLD Snooping Statistics
- Filtering and Throttling MLD Groups
- Multicast VLAN Registration for IPv4
- Multicast VLAN Registration for IPv6
- 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
Chapter 12
| Security Measures
DHCPv6 Snooping
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◆ Table entries are only learned for trusted interfaces. Each entry includes a MAC
address, IPv6 address, lease time, binding type, VLAN identifier, and port
identifier.
◆ When DHCPv6 snooping is enabled, the rate limit for the number of DHCPv6
messages that can be processed by the switch is 100 packets per second. Any
DHCPv6 packets in excess of this limit are dropped.
◆ Filtering rules are implemented as follows:
■
If global DHCPv6 snooping is disabled, all DHCPv6 packets are forwarded.
■
If DHCPv6 snooping is enabled globally, and also enabled on the VLAN
where the DHCPv6 packet is received, DHCPv6 packets are forwarded for a
trusted port as described below.
■
If DHCPv6 snooping is enabled globally, and also enabled on the VLAN
where the DHCP packet is received, but the port is not trusted, DHCP
packets are processed according to message type as follows:
DHCP Client Packet
■
Request: Update entry in binding cache, recording client’s DHCPv6
Unique Identifier (DUID), server’s DUID, Identity Association (IA) type, IA
Identifier, and address (4 message exchanges to get IPv6 address), and
forward to trusted port.
■
Solicit: Add new entry in binding cache, recording client’s DUID, IA type,
IA ID (2 message exchanges to get IPv6 address with rapid commit
option, otherwise 4 message exchanges), and forward to trusted port.
■
Decline: If no matching entry is found in binding cache, drop this
packet.
■
Renew, Rebind, Release, Confirm: If no matching entry is found in
binding cache, drop this packet.
■
If the DHCPv6 packet is not a recognizable type, it is dropped.
If a DHCPv6 packet from a client passes the filtering criteria above, it will
only be forwarded to trusted ports in the same VLAN.
DHCP Server Packet
■
If a DHCP server packet is received on an untrusted port, drop this
packet and add a log entry in the system.
■
If a DHCPv6 Reply packet is received from a server on a trusted port, it
will be processed in the following manner:
A. Check if IPv6 address in IA option is found in binding table: