Planet WSW-2401A Инструкция по эксплуатации онлайн [55/95] 65301
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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. RADIUS operates
in a client/server model in which secure authentication information is exchanged between the RADIUS
server and one or more RADIUS clients.
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Switch (802.1X device)—controls the physical access to the network based on the authentication status
of the client. The switch acts as an intermediary (proxy) between the client and the authentication server,
requesting identity information from the client, verifying that information with the authentication server, and
relaying a response to the client. The switch includes the RADIUS client, which is responsible for
encapsulating and decapsulating the Extensible Authentication Protocol (EAP) frames and interacting
with the authentication server. When the switch receives EAPOL frames and relays them to the
authentication server, the Ethernet header is stripped and the remaining EAP frame is re-encapsulated in
the RADIUS format. The EAP frames are not modified or examined during encapsulation, and the
authentication server must support EAP within the native frame format. When the switch receives frames
from the 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
NOTICE:
If 802.1X is not enabled or supported on the network access device, any EAPOL frames from the client are
Содержание
- Port 10 100mbps 1 port 100base fx open slot managed ethernet switch 1
- User s manual 1
- Wsw 2401a 1
- Table of contents 3
- How to use this manual 6
- Introduction 6
- Packet contents 6
- Product feature 6
- Product specification 7
- Management function 8
- Management interface 8
- Network standard 8
- Snmp version 8
- Support mib 8
- Installation 9
- Led color function 9
- Led indications 9
- Product description 9
- Product overview 9
- Switch front panel 9
- Desktop installation 10
- Install the switch 10
- Switch rear panel 10
- Rack mounting 11
- Connecting to the switch 12
- Console management 12
- Login in the console interface 12
- Console management 13
- Commands 14
- First level commands 14
- Telnet login 14
- Clear command 15
- Privileged command 15
- Copy command 16
- Disable command 17
- Reboot command 17
- Set command 17
- Show command 20
- About web based management 22
- Preparing for web management 22
- System login 22
- Web based management 22
- Ip configuration 23
- System 23
- Theory 24
- Snmp configuration 25
- The added string then shows in the current communities field 26
- Password 27
- Console 28
- System upgrade 28
- Parameters backup recovery 29
- Saving parameters 29
- Load default 30
- Port configuration 30
- Port management 30
- Reboot 30
- Port band restrict 31
- Port statistics 31
- Redundancy 32
- Spanning tree 32
- Spanning tree protocol 32
- Stp parameters 35
- Illustration of stp 37
- Lan 2 lan 3 37
- Portcast 19 37
- Portcast 19 portcast 19 37
- Portcast 4 37
- Designated port 38
- Lan 2 lan 3 38
- Root port root port 38
- Spanning tree configuration 38
- Bridge information 39
- Stp port configuration 39
- Link aggregation 40
- Security 41
- Theory 41
- Vlan configuration 45
- Understand nomenclature of the switch 47
- Mac address bind 50
- Mac address filtering 51
- Mac address learning 52
- Mac address aging time 53
- Theory 54
- X port based network access control 54
- X configuration 58
- Configure sample eap md5 authentication 64
- X client configuration 64
- Qos terminology 67
- Understand qos 67
- Mac cos mapping 68
- Qos configuration 68
- Vlan cos mapping 69
- P cos mapping 70
- Cos queue mapping 71
- Port cos mapping 71
- Queue management 72
- Igmp snooping 73
- Igmp versions 1 and 2 73
- Multicast 73
- Theory 73
- Port analysis 75
- Port mirror 76
- Storm control 77
- About ip stacking 78
- Ip stacking 78
- Ip stacking configuration 78
- Master switch configuration 79
- Client switch configuration 80
- Cabling 83
- Diagnosing led indicators 83
- Faulty or loose cables 83
- Improper network topologies 83
- Incorrect connections 83
- Non standard cables 83
- Trouble shooting 83
- Appendix 85
- Console port pin assignments 85
- Base tx 10base t pin assignments 86
- 802 q vlan multi untagged vlan setting sample 1 87
- Appendix b 87
- 802 q vlan multi untagged vlan setting sample 2 90
- 802 q vlan multi untagged vlan setting sample 3 93
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