Question of ISE MAB

Hello

I am working currently on the site and I did facing Aproblem with mac authentication bypass,

I work with on ISE SNS-3415-K9, version 2.0.0.306, active deployment mode / standby.

The ISE do profiling through snmp and DHCP messages.

in most of the switches of MAB is working properly,

but unfortunately I faced a problem in some switches.

> the ISE cannot discover the mac of an endpoint, then the failure of MAB, same I enter the MAC address of endpoint manually, the GCC has failed.

Please check the following configuration on the switch

IP http server
IP http secure server

analysis of IP device

logging of the EMP
logging Source ip id

control-dot1x system-auth

Group AAA dot1x default authentication RADIUS
Group AAA authorization network default RADIUS
Group AAA authorization auth-proxy default RADIUS
start-stop radius group AAA accounting dot1x default
accounting AAA periodic update 5
!
accounting AAA periodic update 5
start-stop radius group AAA accounting system by default
!
AAA server RADIUS Dynamics-author
Client 10.255.255.13 server-key [email protected]/ * /.
Client 10.255.255.14 server-key [email protected]/ * /.

RADIUS attribute 6 sur-pour-login-auth server
No server radius attribute 8 include-in-access-req
No radius attribute 25-application access server include
No dead-criteria time radius server 120 tries 10

No radius key [email protected]server *.
no host 10.255.255.13 radius server auth-port 1812 acct-port 1813
no host 10.255.255.14 radius server auth-port 1812 acct-port 1813
No 10.255.255.13 radius server host doesn't test username ise_probe-idle time 30
No 10.255.255.14 radius server host doesn't test username ise_probe-idle time 30

No radius vsa server send accounting
No radius vsa server send authentication

No radius source-interface vlan300 ip

No dot1x-auth-control system

no host 10.255.255.13 record transport udp port 20514
host 10.255.255.14 record transport udp port 20514

SNMP-server host 10.255.255.14 [email protected]version *.
SNMP-server host 10.255.255.13 [email protected]version *.

interface GigabitEthernet0/2

switchport
switchport mode access
stream of host-authentication mode
authentication order mab
authentication priority mab
Auto control of the port of authentication
periodic authentication
Server to authenticate again authentication timer
MAB
end

> Also, when I open the RADIUS log file, an authentication failure message appear even I manually insert the MAC.

Please note the ise probe in the user name field

Please check the attached screenshots

@pieterh

The number before the commands is rolled by accident.

Tags: Cisco Security

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