Netgear Switch M4100 User Manual download pdf (Page 269)

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Chapter 15. Security Management | 269

15. Security Management

In this chapter, examples are provided for the following topics:

• Port Security

• Set the Dynamic and Static Limit on Port 1/0/1 on page 270

• Convert the Dynamic Address Learned from 1/0/1 to a Static Address on page 271

• Create a Static Address on page 272

• Protected Ports on page 273

• 802.1x Port Security on page 280

• Create a Guest VLAN on page 286

• Assign VLANs Using RADIUS on page 291

• Dynamic ARP Inspection on page 297

• Static Mapping on page 303

• DHCP Snooping on page 305

• Enter Static Binding into the Binding Database on page 309

• Maximum Rate of DHCP Messages on page 310

• IP Source Guard on page 312

Port Security

Port Security helps secure the network by preventing unknown devices from forwarding

packets. When a link goes down, all dynamically locked addresses are freed. The port

security feature offers the following benefits:

• You can limit the number of MAC addresses on a given port. Packets that have a

matching MAC address (secure packets) are forwarded; all other packets (unsecure

packets) are restricted.

• You can enable port security on a per port basis.

Port security implements two traffic filtering methods, dynamic locking and static locking.

These methods can be used concurrently.

• Dynamic locking. You can specify the maximum number of MAC addresses that can be

learned on a port. The maximum number of MAC addresses is platform dependent and is

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