05-14-2018 05:21 AM - edited 02-21-2020 10:55 AM
Hi,
We are having difficulty setting a policy to authenticate known devices based on location & MAC address in ISE v2.3.
I have created a network device group called "test" which I have my test 3650 switch in & an endpoint identity group called computing which has a few MAC addresses added for testing.
My policy set condition is set to use device location "test group" & radius flow type = WiredMAB with the default authentication policy set to use internal endpoints.
Here is my interface config;
interface GigabitEthernet1/0/2
switchport access vlan 400
switchport mode access
switchport voice vlan 108
authentication event fail action next-method
authentication host-mode multi-auth
authentication open
authentication order dot1x mab
authentication priority dot1x mab
authentication port-control auto
mab
snmp trap mac-notification change added
snmp trap mac-notification change removed
dot1x pae authenticator
dot1x timeout tx-period 2
spanning-tree portfast
end
Below is the AAA config;
aaa new-model
!
!
aaa group server radius ISE-RADIUS
server name NPLNX-ISE1
deadtime 15
!
aaa group server tacacs+ ISE-SERVERS
server name NPLNX-ISE1
!
aaa authentication login CON group ISE-SERVERS local
aaa authentication login VTY group ISE-SERVERS local
aaa authentication enable default group ISE-SERVERS enable
aaa authentication dot1x default group ISE-RADIUS
aaa authorization console
aaa authorization config-commands
aaa authorization exec CON none
aaa authorization exec VTY group ISE-SERVERS local if-authenticated
aaa authorization commands 1 VTY group ISE-SERVERS local if-authenticated
aaa authorization commands 15 VTY group ISE-SERVERS local if-authenticated
aaa authorization network default group ISE-RADIUS
aaa authorization network auth-list group ISE-RADIUS
aaa accounting update periodic 10
aaa accounting dot1x default start-stop group ISE-RADIUS
aaa accounting exec default start-stop group ISE-SERVERS
aaa accounting commands 1 default start-stop group ISE-SERVERS
aaa accounting commands 15 default start-stop group ISE-SERVERS
aaa accounting system default start-stop group ISE-RADIUS
!
Authentication is not matching the policy or authorising the devices.
NPSYG01-A-3#sh authentication sessions
Interface MAC Address Method Domain Status Fg Session ID
--------------------------------------------------------------------------------------------
Gi1/0/2 7486.7a2c.5342 N/A UNKNOWN Unauth 00000000000000725E807E2B
Session count = 1
Key to Session Events Blocked Status Flags:
A - Applying Policy (multi-line status for details)
D - Awaiting Deletion
F - Final Removal in progress
I - Awaiting IIF ID allocation
P - Pushed Session
R - Removing User Profile (multi-line status for details)
U - Applying User Profile (multi-line status for details)
X - Unknown Blocker
NPSYG01-A-3#
Any help appreciated.
05-14-2018 05:38 AM
05-14-2018 05:44 AM
Hi,
We are not getting any authentication fail logs in ISE, I am not sure if the switch & interface config is set right but there is no data in the logs.
thanks
05-14-2018 05:48 AM
05-14-2018 05:52 AM
Hi, we have no successful authentication/authorisations in the logs at all accept for TACACS. There is nothing in the RADIUS logs.
NPSYG01-A-3#sh authentication sessions
Interface MAC Address Method Domain Status Fg Session ID
--------------------------------------------------------------------------------------------
Gi1/0/2 7486.7a2c.5342 N/A UNKNOWN Unauth 00000000000000A45EB4FCC9
Session count = 1
05-14-2018 05:58 AM
05-14-2018 06:02 AM
05-14-2018 06:11 AM
I'm getting no output from the show aaa servers.
dot1x system-auth-control is configured globally. The RADIUS shared secret is defined in the network device in ISE.
05-14-2018 06:13 AM
05-14-2018 07:12 AM
Thanks for that. I was missing the radius global config. It is now authenticating, matching the policy set & reassigning the VLAN based on the authorisation profile.
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