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X Global Settings, Host-based Network Access Control

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xStack® DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch Web UI Reference Guide Host-based Network Access Control In order to successfully make use of 802.1X in a shared media LAN segment, it would be necessary to create "logical" Ports, one for each attached device that required access to the LAN. The Switch would regard the single physical Port connecting it to the shared media segment as consisting of a number of distinct logical Ports, each logical Port being independently controlled from the point of view of EAPOL exchanges and authorization state. The Switch learns each attached devices' individual MAC addresses, and effectively creates a logical Port that the attached device can then use to communicate with the LAN via the Switch. Ethernet Switch RADIUS Server 802.1X 802.1X 802.1X Client Client Client 802.1X 802.1X 802.1X Client Client Client 802.1X 802.1X 802.1X Client Client Client ... 802.1X 802.1X 802.1X Client Client Client Network access controlled port Network access uncontrolled port Figure 8-8 Example of Typical Host-based Configuration 802.1X Global Settings Users can configure the 802.1X global parameter. To view this window, click Security > 802.1X > 802.1X Global Settings, as shown below: Figure 8-9 802.1X Global Settings window The fields that can be configured are described below: Parameter Description Authentication State Choose the 802.1X authenticator state. Authentication Protocol Choose the authenticator protocol, Local or RADIUS EAP. Forward EAPOL PDU This is a global setting to control the forwarding of EAPOL PDU. When 802.1X functionality is disabled globally or for a port, and if 802.1X forward PDU is enabled both globally and for the port, a received EAPOL packet on the port will be flooded in the same VLAN to those ports for which 802.1X forward PDU is enabled and 802.1X is disabled (globally or just for the port). The default state is disabled. Max Users (1-448) Specifies the maximum number of users. The limit on the maximum users is 448 users. RADIUS Authorization This option is used to enable or disable acceptation of authorized configuration. When the authorization is enabled for 802.1X's RADIUS, the authorized data assigned by the RADIUS server will be accepted if the global authorization network is enabled. Click the Apply button to accept the changes made. 205

Section	Page
Intended Readers	10
Typographical Conventions	10
Notes, Notices and Cautions	10
Chapter 1 Web-based Switch Configuration	11
Introduction	11
Login to the Web Manager	11
Web-based User Interface	12
Web Pages	13
Chapter 2 System Configuration	14
Device Information	14
System Information Settings	15
Dual Configuration Settings	16
Firmware Information Settings	17
Port Configuration	18
PoE	21
Serial Port Settings	24
System Log configuration	25
Time Range Settings	29
Time Settings	29
User Accounts Settings	30
Stacking	31
Chapter 3 Management	35
ARP	35
Gratuitous ARP	37
IPv6 Neighbor Settings	38
IP Interface	39
Management Settings	43
Session Table	44
Single IP Management	44
SNMP Settings	54
Telnet Settings	64
Web Settings	64
Chapter 4 L2 Features	65
VLAN	65
Q-in-Q	88
Layer 2 Protocol Tunneling Settings	90
Spanning Tree	91
Link Aggregation	100
FDB	103
L2 Multicast Control	107
Multicast Filtering	132
ERPS Settings	136
LLDP	139
Chapter 5 L3 Features	149
Local Route Settings	149
IPv4 Static/Default Route Settings	149
IPv4 Route Table	150
IPv6 Static/Default Route Settings	151
IPv6 Route Table	151
Policy Route Settings	152
IP Forwarding Table	153
Chapter 6 QoS	154
802.1p Settings	156
Bandwidth Control	159
Traffic Control Settings	161
DSCP	164
HOL Blocking Prevention	167
Scheduling Settings	168
SRED	171
Chapter 7 ACL	174
ACL Configuration Wizard	174
Access Profile List	175
CPU Access Profile List	193
ACL Finder	207
ACL Flow Meter	208
Chapter 8 Security	211
802.1X	211
RADIUS	224
IP-MAC-Port Binding (IMPB)	229
MAC-based Access Control (MAC)	236
Web-based Access Control (WAC)	240
Japanese Web-based Access Control (JWAC)	245
Compound Authentication	252
Port Security	256
ARP Spoofing Prevention Settings	258
BPDU Attack Protection	259
Loopback Detection Settings	261
Traffic Segmentation Settings	262
NetBIOS Filtering Settings	263
DHCP Server Screening	264
Access Authentication Control	265
SSL Settings	274
SSH	276
Trusted Host Settings	280
Safeguard Engine Settings	281
Chapter 9 Network Application	284
DHCP	284
DNS	296
PPPoE Circuit ID Insertion Settings	298
SNTP	299
Chapter 10 OAM	302
CFM	302
Ethernet OAM	311
DULD Settings	315
Cable Diagnostics	316
Chapter 11 Monitoring	318
Utilization	318
Statistics	320
Mirror	332
sFlow	334
Ping Test	337
Trace Route	338
Peripheral	340
Chapter 12 Save and Tools	341
Save Configuration ID 1	341
Save Configuration ID 2	341
Save Log	342
Save All	342
Stacking Information	342
Download Firmware	344
Download Configuration File	344
Upload Configuration File	345
Upload Log File	346
Reset	347
Reboot System	347
Appendix A Mitigating ARP Spoofing Attacks Using Packet Content ACL	348
How Address Resolution Protocol Works	348
How ARP Spoofing Attacks a Network	350
Prevent ARP Spoofing via Packet Content ACL	351
Configuration	351
Appendix B System Log and Trap List	354
System Log Entries	354
DES-3528/DES-3552 Series Trap List	362
Proprietary Trap List	362
Appendix C Password Recovery Procedure	365

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xStack® DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch Web UI Reference Guide

Host-based Network Access Control

In order to successfully make use of 802.1X in a

shared media LAN segment, it would be necessary to

create “logical” Ports, one for each attached device

that required access to the LAN. The Switch would

regard the single physical Port connecting it to the

shared media segment as consisting of a number of

distinct logical Ports, each logical Port being

independently controlled from the point of view of

EAPOL exchanges and authorization state. The Switch

learns each attached devices’ individual MAC

addresses, and effectively creates a logical Port that

the attached device can then use to communicate with

the LAN via the Switch.

802.1X

Client

Network access controlled port

Network access uncontrolled port

RADIUS

Server

Ethernet Switch

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

802.1X

Client

…

Figure 8-8 Example of Typical Host-based Configuration

802.1X Global Settings

Users can configure the 802.1X global parameter.

To view this window, click

Security > 802.1X > 802.1X Global Settings

, as shown below:

Figure 8-9 802.1X Global Settings window

The fields that can be configured are described below:

Parameter

Description

Authentication State

Choose the 802.1X authenticator state.

Authentication Protocol

Choose the authenticator protocol,

Local

RADIUS EAP

Forward EAPOL PDU

This is a global setting to control the forwarding of EAPOL PDU. When 802.1X

functionality is disabled globally or for a port, and if 802.1X forward PDU is enabled

both globally and for the port, a received EAPOL packet on the port will be flooded in

the same VLAN to those ports for which 802.1X forward PDU is enabled and 802.1X is

disabled (globally or just for the port). The default state is disabled.

Max Users (1-448)

Specifies the maximum number of users. The limit on the maximum users is

448

users.

RADIUS Authorization

This option is used to enable or disable acceptation of authorized configuration. When

the authorization is enabled for 802.1X’s RADIUS, the authorized data assigned by the

RADIUS server will be accepted if the global authorization network is enabled.

Click the

Apply

button to accept the changes made.

205