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Chapter 9 802.1x
MES-2110 User’s Guide
71
9.6 Technical Reference
This section provides technical background information about the topics covered in
this chapter.
9.6.1 RADIUS and TACACS+
RADIUS and TACACS+ are security protocols used to authenticate users by means
of an external server instead of (or in addition to) an internal device user database
that is limited to the memory capacity of the device. In essence, RADIUS and
TACACS+ authentication both allow you to validate an unlimited number of users
from a central location.
The following table describes some key differences between RADIUS and
TACACS+.
9.6.2 Supported RADIUS Attributes
Remote Authentication Dial-In User Service (RADIUS) attributes are data used to
define specific authentication, and accounting elements in a user profile, which is
stored on the RADIUS server. This appendix lists the RADIUS attributes supported
by the Switch.
Guest VLAN This shows if a Guest VLAN is enabled on the port.
Reauthenticat
ion
This shows if a subscriber has to periodically re-enter his or her username
and password to stay connected to the port.
Reauth-Period This shows how often (in minutes) a client has to re-enter his or her
username and password to stay connected to the port.
Undo Click this to restore your last saved settings.
Apply
Click this to save your changes.
Table 17 Configuration > 802.1x Status (continued)
LABEL DESCRIPTION
Table 18 RADIUS vs. TACACS+
RADIUS TACACS+
Transport
Protocol
UDP (User Datagram Protocol) TCP (Transmission Control Protocol)
Encryption Encrypts the password sent for
authentication.
All communication between the client
(the Switch) and the TACACS server
is encrypted.
- MES-2110 1
- About This User's Guide 3
- Customer Support 4
- Document Conventions 5
- Icons Used in Figures 6
- Safety Warnings 7
- Contents Overview 10
- MES-2110 User’s Guide 10
- Table of Contents 11
- Introduction and 17
- Hardware 17
- CHAPTER 1 19
- 1.1.2 Bridging Example 20
- 1.1.5 Metro Ethernet 22
- Figure 5 Metro Ethernet 23
- CHAPTER 2 25
- 2.3.1.1 Precautions 27
- CHAPTER 3 29
- 3.1.1 Console Port 30
- 3.1.3 Mini-GBIC Slots 31
- 3.1.3.2 Transceiver Removal 32
- 3.1.4 Power Connector 33
- 3.2 LEDs 34
- Basic Configuration 35
- CHAPTER 4 37
- (1234 by default) 38
- 4.3 The Main Screen 39
- LINK DESCRIPTION 42
- 4.5 Switch Lockout 45
- 4.6 Resetting the Switch 45
- Username: admin 46
- Password: 46
- MES-2110> enable 46
- MES-2110# reset default 46
- CHAPTER 5 47
- Chapter 5 System Details 50
- PART III 51
- CHAPTER 6 53
- Chapter 6 Configuration 54
- Chapter 6 Configuration 55
- Status screen as shown next 55
- 6.4 The RMON Status Screen 57
- CHAPTER 7 59
- Chapter 7 Loop Detection 61
- Chapter 7 Loop Detection 62
- CHAPTER 8 63
- Chapter 8 Jumbo Frame 64
- CHAPTER 9 65
- 9.1.2 Guest VLAN 66
- 9.6 Technical Reference 71
- CHAPTER 10 75
- 10.1.2 How STP Works 76
- 10.1.3 STP Port States 77
- Chapter 10 Bridge 79
- Chapter 10 Bridge 80
- CHAPTER 11 83
- 11.3 The VLAN Type Screen 85
- 11.5.1 VLAN Stacking 87
- 11.5.2 VLAN Stacking Example 87
- 11.5.4 VLAN Tag Format 89
- 11.5.5 Frame Format 89
- Table 32 802.1Q Frame 90
- Chapter 11 VLAN 91
- CHAPTER 12 95
- Chapter 12 Bandwidth Control 96
- CHAPTER 13 97
- CHAPTER 14 99
- Chapter 14 Port Mirroring 100
- LABEL DESCRIPTION 100
- CHAPTER 15 101
- 15.3 Static Trunking Example 102
- 15.6 LACP Link Status 105
- Chapter 15 Link Aggregation 106
- CHAPTER 16 107
- 16.2 IGMP Configuration 108
- Chapter 16 IGMP 109
- 16.3 IGMP Status 110
- 16.4 MVR Overview 110
- 16.4.1 Types of MVR Ports 111
- 16.4.2 MVR Modes 111
- 16.4.3 How MVR Works 111
- Chapter 16 IGMP 118
- CHAPTER 17 119
- Chapter 17 IP Source Guard 122
- 17.3 DHCP Binding Table 123
- CHAPTER 18 127
- MAC Table Configuration 128
- Chapter 18 MAC 131
- Chapter 18 MAC 134
- CHAPTER 19 135
- Chapter 19 QoS 137
- 19.4 The Tag Priority Table 139
- Chapter 19 QoS 142
- Management 143
- CHAPTER 20 145
- Table 62 SNMP Commands 147
- 20.4 The SNTP Screen 148
- 20.5 Alarms and Logs 150
- 20.7 The Cable Test Screen 152
- 20.8 The Host DoS Protection 153
- 20.10 Upgrading the Firmware 155
- 20.12 Restarting the System 156
- Troubleshooting & 159
- Product 159
- Specifications 159
- CHAPTER 21 161
- 21.2 Switch Access and Login 162
- CHAPTER 22 165
- FEATURE DESCRIPTION 166
- STANDARD DESCRIPTION 168
- Appendices and 169
- APPENDIX A 171
- Appendix A Changing a Fuse 172
- APPENDIX B 173
- Appendix B Common Services 174
- Appendix B Common Services 175
- APPENDIX C 177
- FCC Warning 178
- CE Mark Warning: 178
- Warning: 178
- Notices 178
- ZyXEL Limited Warranty 179
- Appendix C Legal Information 180
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