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 19
| IP Services
Dynamic Host Configuration Protocol
– 538 –
■
The reply packet contains a valid relay agent address field (that is not the
address of this switch), or receives a reply packet with a zero relay agent
address through the management VLAN.
■
A DHCP relay server has been set on the switch, and the switch receives a
reply packet on a non-management VLAN.
Parameters
These parameters are displayed:
◆ Insertion of Relay Information – Enable DHCP Option 82 information relay.
(Default: Disabled)
◆ DHCP Option Policy – Specifies how to handle client requests which already
contain DHCP Option 82 information:
Drop - Floods the original request packet onto the VLAN that received it
instead of relaying it. (This is the default.)
Keep - Retains the Option 82 information in the client request, inserts the relay
agent’s address, and unicasts the packet to the DHCP server.
Replace - Replaces the Option 82 information circuit-id and remote-id fields in
the client’s request with information provided by the relay agent itself, inserts
the relay agent’s address, and unicasts the packet to the DHCP server.
◆ DHCP Sub-option Format – Specifies whether or not to use the sub-type and
sub-length fields in the circuit-ID (CID) and remote-ID (RID) in Option 82
information. (Default: Included)
◆ Server IP Address – Addresses of DHCP servers or relay servers to be used by
the switch’s DHCP relay agent in order of preference.
Web Interface
To configure DHCP relay service:
1. Click IP Service, DHCP, Relay Option 82.
2. Enable or disable Option 82.
3. Set the Option 82 policy to specify how to handle Option 82 information
already contained in DHCP client request packets.
4. Specify whether or not include “type” and “length” sub-options. .
5. Enter up to five IP addresses for DHCP servers or relay servers in order of
preference.
6. Click Apply.