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Captive Portal (CP), Global Configuration

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DWS-3160 Series Gigabit Ethernet Unified Switch Web UI Reference Guide Figure 11-66 Safeguard Engine Settings window The fields that can be configured are described below: Parameter Description Safeguard Engine State Use the radio button to globally enable or disable Safeguard Engine settings for the Switch. Rising Threshold (20% - 100%) Used to configure the acceptable level of CPU utilization before the Safeguard Engine mechanism is enabled. Once the CPU utilization reaches this percentage level, the Switch will move into Exhausted mode, based on the parameters provided in this window. Falling Threshold (20% Used to configure the acceptable level of CPU utilization as a percentage, where the - 100%) Switch leaves the Safeguard Engine state and returns to normal mode. Trap / Log Use the drop-down menu to enable or disable the sending of messages to the device's SNMP agent and switch log once the Safeguard Engine has been activated by a high CPU utilization rate. Mode Used to select the type of Safeguard Engine to be activated by the Switch when the CPU utilization reaches a high rate. The user may select: Fuzzy - If selected, this function will instruct the Switch to minimize the IP and ARP traffic flow to the CPU by dynamically allotting an even bandwidth to all traffic flows. Strict - If selected, this function will stop accepting all ARP packets not intended for the Switch, and will stop receiving all unnecessary broadcast IP packets, until the storm has subsided. The default setting is Fuzzy mode. Click the Apply button to accept the changes made. Captive Portal (CP) Captive Portal (CP) is the feature that controls the accessibility of both wired and wireless users to the network. The verification can be configured to allow access for guests and authenticated users in this section. NOTE: The Captive Portal (CP) folder is also accessible from the WLAN tab in the navigation window. Any configuration within this folder will be exactly the same as the Captive Portal (CP) folder in the WLAN tab. Global Configuration This window is used to globally configure the CP settings. To view this window, click Security > Captive Portal (CP) > Global Configuration as shown below: 246

Section	Page
Table of Contents	3
Intended Readers	6
Typographical Conventions	6
Notes, Notices and Cautions	6
Section 1 Web-based Switch Configuration	7
Chapter 1 Introduction	7
Chapter 2 Login to the Web Manager	7
Chapter 3 Web-based User Interface	8
Areas of the User Interface	8
Chapter 4 Web Pages	9
Section 2 LAN	11
Chapter 1 System Configuration	11
Device Information	11
System Information Settings	12
Port Configuration	12
PoE	16
Serial Port Settings	19
Warning Temperature Settings	19
System Log Configuration	20
Time Range Settings	23
Port Group Settings	24
Time Settings	24
User Accounts Settings	25
Command Logging Settings	26
Chapter 2 Management	27
ARP	27
Gratuitous ARP	28
IPv6 Neighbor Settings	30
IP Interface	31
Management Settings	35
Session Table	36
Single IP Management	37
SNMP Settings	46
Telnet Settings	55
Web Settings	55
Chapter 3 L2 Features	56
VLAN	56
QinQ	74
Spanning Tree	77
Link Aggregation	84
FDB	87
L2 Multicast Control	91
Multicast Filtering	113
ERPS Settings	118
LLDP	121
NLB FDB Settings	130
Chapter 4 L3 Features	131
IPv4 Static/Default Route Settings	131
IPv4 Route Table	132
IPv6 Static/Default Route Settings	132
IP Forwarding Table	133
VRRP	133
Chapter 5 QoS	138
802.1p Settings	139
Bandwidth Control	141
Traffic Control Settings	143
DSCP	145
HOL Blocking Prevention	147
Scheduling Settings	147
Chapter 6 ACL	150
ACL Configuration Wizard	150
Access Profile List	151
CPU Access Profile List	167
ACL Finder	181
ACL Flow Meter	181
Egress Access Profile List	184
Egress ACL Flow Meter	196
Chapter 7 Security	199
802.1X	199
RADIUS	211
IP-MAC-Port Binding (IMPB)	215
MAC-based Access Control (MAC)	220
Compound Authentication	223
Port Security	226
ARP Spoofing Prevention Settings	228
BPDU Attack Protection	229
Loopback Detection Settings	230
Traffic Segmentation Settings	231
NetBIOS Filtering Settings	232
DHCP Server Screening	233
Access Authentication Control	235
SSL Settings	243
SSH	245
Trusted Host Settings	249
Safeguard Engine Settings	249
Captive Portal (CP)	251
Chapter 8 Network Application	271
DHCP	271
SNTP	277
Flash File System Settings	279
Chapter 9 OAM	281
CFM	281
Ethernet OAM	291
Cable Diagnostics	295
Chapter 10 Monitoring	297
Utilization	297
Statistics	298
Received (RX)	299
UMB_Cast (RX)	300
Transmitted (TX)	302
Received (RX)	303
Transmitted (TX)	305
Mirror	308
sFlow	310
Ping Test	313
Trace Route	314
Peripheral	315
Chapter 11 Save and Tools	316
Section 3 WLAN	317
Chapter 1 Security	317
Captive Portal (CP)	317
Chapter 2 Monitoring	336
Global	336
Peer Switch	344
Access Point	347
Client	368
QoS	387
Chapter 3 Administration	395
Basic Setup	395
AP Management	407
Advanced Configuration	416
Chapter 4 QoS	443
Access Control Lists	443
Differentiated Services	456
Chapter 5 Network Visualization	462
Download Image	462
Launch…	462
Section 4 Save and Tools	465
Chapter 1 Save	465
Save Configuration / Log	465
Chapter 2 Tools	466
License Management	466
Download Firmware	466
Upload Firmware	467
Download Configuration	467
Upload Configuration	468
Upload Log File	469
Reset	470
Reboot System	471
Appendices	473
Appendix A Mitigating ARP Spoofing Attacks Using Packet Content ACL	473
Appendix B Password Recovery Procedure	479
Appendix C System Log Entries	480
Appendix D Trap Log Entries	491
Appendix E RADIUS Attributes Assignment	495

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DWS-3160 Series Gigabit Ethernet Unified Switch Web UI Reference Guide

246

Figure 11-66 Safeguard Engine Settings window

The fields that can be configured are described below:

Parameter

Description

Safeguard Engine

State

Use the radio button to globally enable or disable Safeguard Engine settings for the

Switch.

Rising Threshold (20%

- 100%)

Used to configure the acceptable level of CPU utilization before the Safeguard

Engine mechanism is enabled. Once the CPU utilization reaches this percentage

level, the Switch will move into Exhausted mode, based on the parameters provided

in this window.

Falling Threshold (20%

- 100%)

Used to configure the acceptable level of CPU utilization as a percentage, where the

Switch leaves the Safeguard Engine state and returns to normal mode.

Trap / Log

Use the drop-down menu to enable or disable the sending of messages to the

device’s SNMP agent and switch log once the Safeguard Engine has been activated

by a high CPU utilization rate.

Mode

Used to select the type of Safeguard Engine to be activated by the Switch when the

CPU utilization reaches a high rate. The user may select:

Fuzzy

– If selected, this function will instruct the Switch to minimize the IP and ARP

traffic flow to the CPU by dynamically allotting an even bandwidth to all traffic flows.

Strict

– If selected, this function will stop accepting all ARP packets not intended for

the Switch, and will stop receiving all unnecessary broadcast IP packets, until the

storm has subsided.

The default setting is

Fuzzy

mode.

Click the

Apply

button to accept the changes made.

Captive Portal (CP)

Captive Portal (CP) is the feature that controls the accessibility of both wired and wireless users to the network.

The verification can be configured to allow access for guests and authenticated users in this section.

NOTE:

The Captive Portal (CP) folder is also accessible from the WLAN tab in the navigation

window. Any configuration within this folder will be exactly the same as the Captive Portal

(CP) folder in the WLAN tab.

Global Configuration

This window is used to globally configure the CP settings.

To view this window, click

Security > Captive Portal (CP) > Global Configuration

as shown below: