Netgear Switch M4100 User Manual download pdf (Page 280)

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280 | Chapter 15. Security Management

ProSafe M4100 and M7100 Managed Switches

802.1x Port Security

This section describes how to configure the 802.1x port security feature on a switch port.

IEEE 802.1x authentication prevents unauthorized clients from connecting to a VLAN unless

these clients are authorized by the server

. 802.1x port security prevent unauthorized clients

from connecting to a VLAN. It can be configured on a per-port basis.

PC 1 PC 2

Layer 2

switch

RADIUS

server

Figure 29. Using 802.1x port security

The following example shows how to authenticate the dot1x users by a RADIUS server. The

management IP address is 10.100.5.33/24. The example is shown as CLI commands and as

a Web interface procedure.

CLI: Authenticating dot1x Users by a RADIUS Server

1. Assign an IP address to 1/0/19, and set force authorized mode to this port, and create a

user name list dot1xList.

(Netgear Switch) #config

(Netgear Switch) (Config)#ip routing

(Netgear Switch) (Config)#interface 1/0/1

(Netgear Switch) (Interface 1/0/1)#routing

(Netgear Switch) (Interface 1/0/1)#ip address 192.168.1.1 255.255.255.0

(Netgear Switch) (Config)#dot1x system-auth-control

(Netgear Switch) (Config)#interface 1/0/19

(Netgear Switch) (Interface 1/0/19)#routing

(Netgear Switch) (Interface 1/0/19)#ip address 10.100.5.33 255.255.255.0

(Netgear Switch) (Interface 1/0/19)#dot1x port-control force-authorized

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