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 System Information
- 4.2.2 IP Configurations
- 4.2.3 IPv6 Configuration
- 4.2.4 User Configuration
- 4.2.5 Time Settings
- 4.2.6 Log Management
- 4.2.7 SNMP Management
- 4.2.8 RMON
- 4.2.9 Fault Alarm Configuration
- 4.2.10 Remote Management
- 4.3 Port Management
- 4.3.1 Port Configuration
- 4.3.2 Port Counters
- 4.3.3 Bandwidth Utilization
- 4.3.4 Port Mirroring
- 4.3.5 Jumbo Frame
- 4.3.6 Port Error Disabled Configuration
- 4.3.7 Port Error Disabled Status
- 4.3.8 Protected Ports
- 4.3.9 EEE
- 4.3.10 SFP Module Information
- 4.4 Link Aggregation
- 4.5 VLAN
- 4.5.1 VLAN Overview
- 4.5.2 IEEE 802.1Q VLAN
- 4.5.3 Management VLAN
- 4.5.4 Create VLAN
- 4.5.5 Interface Settings
- 4.5.6 Port to VLAN
- 4.5.7 Port VLAN Membership
- 4.5.8 Protocol VLAN Group Setting
- 4.5.9 Protocol VLAN Port Setting
- 4.5.10 GVRP Setting
- 4.5.11 GVRP Port Setting
- 4.5.12 GVRP VLAN
- 4.5.13 GVRP Statistics
- 4.5.14 VLAN Setting Example:
- 4.6 Spanning Tree Protocol
- 4.7 Multicast
- 4.8 IGMP Snooping
- 4.9 MLD Snooping
- 4.10 LLDP
- 4.11 MAC Address Table
- 4.12 Quality of Service
- 4.13 Security
- 4.14 Ring
- 4.15 Maintenance
- 4.16 Diagnostics
- 5. SWITCH OPERATION
- 6. TROUBLESHOOTING
- APPENDIX A Switch's RJ45 Pin Assignments
User’s Manual of IGS-4215 series
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authentication server, the server's frame header is removed, leaving the EAP frame, which is then encapsulated for
Ethernet and sent to the client.
Authentication Initiation and Message Exchange
The switch or the client can initiate authentication. If you enable authentication on a port by using the dot1x port-control auto
interface configuration command, the switch must initiate authentication when it determines that the port link state transitions
from down to up. It then sends an EAP-request/identity frame to the client to request its identity (typically, the switch sends an
initial identity/request frame followed by one or more requests for authentication information). Upon receipt of the frame, the
client responds with an EAP-response/identity frame.
However, if during bootup, the client does not receive an EAP-request/identity frame from the switch, the client can initiate
authentication by sending an EAPOL-start frame, which prompts the switch to request the client's identity
If 802.1X is not enabled or supported on the network access device, any EAPOL frames from the
client are dropped. If the client does not receive an EAP-
request/identity frame after three attempts
to start authentication, the client transmits frames as if the port is in the authorized state. A port in
the authorized state effectively means that the client has been successfully authenticated.
When the client supplies its identity, the switch begins its role as the intermediary, passing EAP frames between the client and
the authentication server until authentication succeeds or fails. If the authentication succeeds, the switch port becomes
authorized.
The specific exchange of EAP frames depends on the authentication method being used. “Figure 4-9-2” shows a message
exchange initiated by the client using the One-Time-Password (OTP) authentication method with a RADIUS server.
Figure 4-9-2: EAP Message Exchange