Web Management Guide-R02
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
- 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
- ND 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
- Setting a Time Range
- Ethernet Ring Protection Switching
- MLAG Configuration
- OAM Configuration
- LBD 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
- IP Tools
- IP Configuration
- General IP Routing
- IP Services
- Appendices
Chapter 12
| Security Measures
Configuring the Secure Shell
– 320 –
3. Import Client’s Public Key to the Switch – See “Importing User Public Keys” on
page 323 to copy a file containing the public key for all the SSH client’s granted
management access to the switch. (Note that these clients must be configured
locally on the switch via the User Accounts page as described on page 301.) The
clients are subsequently authenticated using these keys. The current firmware
only accepts public key files based on standard UNIX format as shown in the
following example for an RSA key:
-----BEGIN RSA PUBLIC KEY-----
MIIBCgKCAQEAmk9QvzWeYFgvjInC/jyvalribLTmx5ncPJcnC0RHsAgbuzefGRhV
RSdcx63mRUXiG968LksVXPKJeEa6cX02xZoLwbg96VPoarLTrnI8UC55XFw4c32I
q0FERXUIVQPfSt2XgPqOHi+uIaokeKJ6SV3V05CmdXwRYmSr4ZGQB2SjOp4cMpmy
TKIIfHxQ0L7WfSKJnBMgsk9ZyzvD1pZxXoHKdG87k4k9gn8d+fcV9d7xHf2255jI
1xNwPOZDHy57yjC63sO4xoYcTE7TBrCM5vqJwr17R8ioNXorpRvWZ1ump2FZTZHE
nyuoYvSJMaR8iTtboFIjEonqVX6gsLFwhwIDAQAB
-----END RSA PUBLIC KEY-----
4. Set the Optional Parameters – On the SSH Settings page, configure the optional
parameters, including the authentication timeout, the number of retries, and
the server key size.
5. Enable SSH Service – On the SSH Settings page, enable the SSH server on the
switch.
6. Authentication – One of the following authentication methods is employed:
Password Authentication (for SSH V2 Clients)
a. The client sends its password to the server.
b. The switch compares the client's password to those stored in memory.
c. If a match is found, the connection is allowed.
Note:
To use SSH with only password authentication, the host public key must still
be given to the client, either during initial connection or manually entered into the
known host file. However, you do not need to configure the client’s keys.
Public Key Authentication – When an SSH client attempts to contact the switch,
the SSH server uses the host key pair to negotiate a session key and encryption
method. Only clients that have a private key corresponding to the public keys
stored on the switch can access it. The following exchanges take place during
this process:
Authenticating SSH v2 Clients
a. The client first queries the switch to determine if public key
authentication using a preferred algorithm is acceptable.
b. If the specified algorithm is supported by the switch, it notifies the
client to proceed with the authentication process. Otherwise, it rejects
the request.
c. The client sends a signature generated using the private key to the
switch.