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From Port / To Port, ARP Inspection, Protocol, Zero IP, DHCP Packet, Stop Learning, Threshold, Apply

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DWS-3160 Series Gigabit Ethernet Unified Switch Web UI Reference Guide Figure 11-27 IMPB Port Settings window The fields that can be configured are described below: Parameter Description From Port / To Port Select a range of ports to set for IP-MAC-port binding. ARP Inspection When the ARP inspection function is enabled, the legal ARP packets are forwarded, while the illegal packets are dropped. Disabled - Disable the ARP inspection function. Enabled (Strict) - This mode disables hardware learning of the MAC address. All packets are dropped by default until a legal ARP or IP packets are detected. When enabling this mode, the Switch stops writing dropped FDB entries on these ports. If detecting legal packets, the Switch needs to write forward FDB entry. Enabled (Loose) - In this mode, all packets are forwarded by default until an illegal ARP packet is detected. The default value is Disabled. IP Inspection When both ARP and IP inspections are enabled, all IP packets are checked. The legal IP packets are forwarded, while the illegal IP packets are dropped. When IP Inspection is enabled, and ARP Inspection is disabled, all non-IP packets (Ex. L2 packets, or ARP) are forwarded by default. The default value is Disabled. Protocol Use the drop-down menu to select the protocol. Zero IP Use the drop-down menu to enable or disable this feature. Allow zero IP configures the state which allows ARP packets with 0.0.0.0 source IP to bypass. DHCP Packet By default, the DHCP packet with broadcast DA will be flooded. When set to disable, the broadcast DHCP packet received by the specified port will not be forwarded in strict mode. This setting is effective when DHCP snooping is enabled, in the case when a DHCP packet which has been trapped by the CPU needs to be forwarded by the software. This setting controls the forwarding behavior in this situation. Stop Learning Threshold Here is displayed the number of blocked entries on the port. The default value is 500. Click the Apply button to accept the changes made. 212

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

Match case Limit results 1 per page

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

212

Figure 11-27 IMPB Port Settings window

The fields that can be configured are described below:

Parameter

Description

From Port / To Port

Select a range of ports to set for IP-MAC-port binding.

ARP Inspection

When the ARP inspection function is enabled, the legal ARP packets are forwarded,

while the illegal packets are dropped.

Disabled

- Disable the ARP inspection function.

Enabled (Strict)

- This mode disables hardware learning of the MAC address. All

packets are dropped by default until a legal ARP or IP packets are detected. When

enabling this mode, the Switch stops writing dropped FDB entries on these ports. If

detecting legal packets, the Switch needs to write forward FDB entry.

Enabled (Loose)

- In this mode, all packets are forwarded by default until an illegal

ARP packet is detected.

The default value is Disabled.

IP Inspection

When both ARP and IP inspections are enabled, all IP packets are checked. The

legal IP packets are forwarded, while the illegal IP packets are dropped. When IP

Inspection is enabled, and ARP Inspection is disabled, all non-IP packets (Ex. L2

packets, or ARP) are forwarded by default.

The default value is Disabled.

Protocol

Use the drop-down menu to select the protocol.

Zero IP

Use the drop-down menu to enable or disable this feature. Allow zero IP configures

the state which allows ARP packets with 0.0.0.0 source IP to bypass.

DHCP Packet

By default, the DHCP packet with broadcast DA will be flooded. When set to disable,

the broadcast DHCP packet received by the specified port will not be forwarded in

strict mode. This setting is effective when DHCP snooping is enabled, in the case

when a DHCP packet which has been trapped by the CPU needs to be forwarded by

the software. This setting controls the forwarding behavior in this situation.

Stop Learning

Threshold

Here is displayed the number of blocked entries on the port. The default value is

500

Click the

Apply

button to accept the changes made.