User's Manual
Table Of Contents
- 1. INTRODUCTION
- 2. INSTALLATION
- 3. SWITCH MANAGEMENT
- 4. WEB CONFIGURATION
- 4.1 Main Web Page
- 4.2 System
- 4.2.1 Management
- 4.2.1.1 System Information
- 4.2.1.2 IP Configuration
- 4.2.1.3 IP Status
- 4.2.1.4 Users Configuration
- 4.2.1.5 Privilege Levels
- 4.2.1.6 NTP Configuration
- 4.2.1.6.1 System Time Correction Manually
- 4.2.1.7 Time Configuration
- 4.2.1.8 UPnP
- 4.2.1.9 DHCP Relay
- 4.2.1.10 DHCP Relay Statistics
- 4.2.1.11 CPU Load
- 4.2.1.12 System Log
- 4.2.1.13 Detailed Log
- 4.2.1.14 Remote Syslog
- 4.2.1.15 SMTP Configuration
- 4.2.2 Simple Network Management Protocol
- 4.2.3 RMON
- 4.2.4 DHCP server
- 4.2.5 LCD
- 4.2.1 Management
- 4.3 Switching
- 4.3.1 Port Management
- 4.3.2 Link Aggregation
- 4.3.3 VLAN
- 4.3.3.1 VLAN Overview
- 4.3.3.2 IEEE 802.1Q VLAN
- 4.3.3.3 VLAN Port Configuration
- 4.3.3.4 VLAN Membership Status
- 4.3.3.5 VLAN Port Status
- 4.3.3.6 Port Isolation
- 4.3.3.7 VLAN setting example:
- 4.3.3.7.1 Two Separate 802.1Q VLANs
- 4.3.3.7.2 VLAN Trunking between two 802.1Q aware switches
- 4.3.3.7.3 Port Isolate
- 4.3.3.8 MAC-based VLAN
- 4.3.3.9 Protocol-based VLAN
- 4.3.3.10 Protocol-based VLAN Membership
- 4.3.4 Spanning Tree Protocol
- 4.3.5 Multicast
- 4.3.6 MLD Snooping
- 4.3.7 MVR (Multicast VLAN Registration)
- 4.3.8 LLDP
- 4.3.9 MAC Address Table
- 4.3.10 Loop Protection
- 4.3.11 UDLD
- 4.3.12 GVRP
- 4.4 Quality of Service
- 4.5 Security
- 4.6 Ring
- 4.7 Maintenance
- 5. SWITCH OPERATION
- 6. TROUBLESHOOTING
- APPENDIX A: Networking Connection
- APPENDIX B : GLOSSARY
User’s Manual of GS-5220-16T2XV(R) Managed LCD Switch
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Until the client is authenticated, 802.1X access control allows only Extensible Authentication Protocol over LAN (EAPOL)
traffic through the port to which the client is connected. After authentication is successful, normal traffic can pass through the
port.
This section includes this conceptual information:
• Device Roles
• Authentication Initiation and Message Exchange
• Ports in Authorized and Unauthorized States
Device Roles
With 802.1X port-based authentication, the devices in the network have specific roles as shown below.
Figure 4-5-2
Client—the device (workstation) that requests access to the LAN and switch services and responds to requests from
the switch. The workstation must be running 802.1X-compliant client software such as that offered in the Microsoft
Windows XP operating system. (The client is the supplicant in the IEEE 802.1X specification.)
Authentication server—performs the actual authentication of the client. The authentication server validates the
identity of the client and notifies the switch whether or not the client is authorized to access the LAN and switch services.
Because the switch acts as the proxy, the authentication service is transparent to the client. In this release, the Remote
Authentication Dial-In User Service (RADIUS) security system with Extensible Authentication Protocol (EAP)
extensions is the only supported authentication server; it is available in Cisco Secure Access Control Server version 3.0.