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dot1x with Cisco Switch in GNS3 and CentOS Client

Today, I successfully completed a lab in GNS3 to work with dot1x wired authentication. In my lab, I used Cisco IOU L2 Image, FreeRADIUS Servers for remote authentication and CentOS 7 as a Client operating system.

In this post I will show my working configuration for Cisco L2 Switch, where "no ip routing" is configured. And a snapshot for from CentOS for network security setting to authenticate with 802.1x protocol.

On switch I used following configurations
My Cisco IOU L2 Image is

ACCESS-SW#sh version | in  Version
Cisco IOS Software, Solaris Software (I86BI_LINUXL2-IPBASEK9-M), Experimental Version 15.1(20130726:213425) [dstivers-july26-2013-team_track 105]

!
ACCESS-SW#show run
!
! output only dot1x related configuration
!
aaa new-model
aaa group server radius RADIUS1
 server name FreeRADIUS
aaa authentication dot1x default group RADIUS1 local
dot1x system-auth-control
!
interface Ethernet3/0
 switchport access vlan 10
 switchport mode access
 authentication port-control auto
 dot1x pae authenticator
 spanning-tree portfast
end
!

To authenticate CentOS as a wired 802.1x client, see the below Snapshot for exact configuration


802.1x Configuration on CentOS

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