12-27-2022 07:35 PM - edited 12-27-2022 07:37 PM
Hi, i have an issue with configuring dot1x.
Switch version is:
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960+48PST-S 15.2(7)E6 C2960-LANLITEK9-M
We have the following configuration on the port:
C2960-1#show run int fa 0/32
Building configuration...
Current configuration : 552 bytes
!
interface FastEthernet0/32
switchport access vlan 10
switchport mode access
switchport voice vlan 6
authentication event fail action next-method
authentication host-mode multi-domain
authentication order mab dot1x
authentication priority mab dot1x
authentication timer inactivity server
authentication violation restrict
mab
dot1x pae authenticator
dot1x timeout tx-period 10
storm-control broadcast level 20.00
storm-control multicast level 30.00
storm-control action shutdown
spanning-tree bpduguard enable
end
Here is the radius configuration:
VTDU-C04-C2960-1#show run | sec radius
aaa group server radius ISE
server name ISE_Main
aaa authentication dot1x default group radius
aaa authorization network default group radius
aaa accounting dot1x default start-stop group radius
aaa server radius dynamic-author
ip radius source-interface Vlan250
radius-server attribute 6 on-for-login-auth
radius-server attribute 6 support-multiple
radius-server attribute 8 include-in-access-req
radius-server attribute 25 access-request include
radius-server dead-criteria time 30 tries 3
radius-server vsa send cisco-nas-port
radius server ISE_Main
address ipv4 x.x.x.x auth-port 1812 acct-port 1813
key 7 152B312E1779130932
We see the session is on Unauthorized state:
C2960-1#show authentication sessions int fa 0/32 details
Interface: FastEthernet0/32
MAC Address: 001b.4f2c.869d
IPv6 Address: Unknown
IPv4 Address: Unknown
User-Name: 00-1B-4F-2C-86-9D
Status: Unauthorized
Domain: VOICE
Oper host mode: multi-domain
Oper control dir: both
Session timeout: N/A
Restart timeout: N/A
Periodic Acct timeout: N/A
Session Uptime: 478s
Common Session ID: 0A10FAFA000004360C1BC3EF
Acct Session ID: Unknown
Handle: 0x8F000053
Current Policy: POLICY_Fa0/32
Local Policies:
Service Template: DEFAULT_LINKSEC_POLICY_SHOULD_SECURE (priority 150)
Method status list:
Method State
mab Authc Success
----------------------------------------
Interface: FastEthernet0/32
MAC Address: 5065.f339.a045
IPv6 Address: Unknown
IPv4 Address: Unknown
User-Name: USERNAME
Status: Unauthorized
Domain: DATA
Oper host mode: multi-domain
Oper control dir: both
Session timeout: N/A
Restart timeout: N/A
Periodic Acct timeout: N/A
Session Uptime: 470s
Common Session ID: 0A10FAFA000004370C1BE0E7
Acct Session ID: Unknown
Handle: 0xAA000054
Current Policy: POLICY_Fa0/32
On debug we see that EAPOL is ignored, could someone tell me what should i check:
Dec 27 11:36:18.430 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] queuing an EAPOL pkt on Auth Q
Dec 27 11:36:18.430 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:18.430 ALM: dot1x-packet: length: 0x0000
Dec 27 11:36:18.430 ALM: dot1x-ev:[Fa0/32] Dequeued pkt: Int Fa0/32 CODE= 0,TYPE= 0,LEN= 0
Dec 27 11:36:18.430 ALM: dot1x-ev:[Fa0/32] Received pkt saddr =5065.f339.a045 , daddr = 0180.c200.0003, pae-ether-type = 888e.0101.0000
Dec 27 11:36:18.430 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] Received an EAPOL-Start packet
Dec 27 11:36:18.430 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:18.430 ALM: dot1x-packet: length: 0x000
Dec 27 11:36:18.430 ALM: dot1x-sm:[5065.f339.a045, Fa0/32] Posting EAPOL_START on Client 0xF200002E
Dec 27 11:36:18.430 ALM: dot1x_auth Fa0/32: during state auth_authc_result, got event 4(eapolStart) (ignored)
Dec 27 11:36:23.455 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] queuing an EAPOL pkt on Auth Q
Dec 27 11:36:23.455 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:23.464 ALM: dot1x-packet: length: 0x0000
Dec 27 11:36:23.464 ALM: dot1x-ev:[Fa0/32] Dequeued pkt: Int Fa0/32 CODE= 0,TYPE= 0,LEN= 0
Dec 27 11:36:23.464 ALM: dot1x-ev:[Fa0/32] Received pkt saddr =5065.f339.a045 , daddr = 0180.c200.0003, pae-ether-type = 888e.0101.0000
Dec 27 11:36:23.464 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] Received an EAPOL-Start packet
Dec 27 11:36:23.464 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:23.464 ALM: dot1x-packet: length: 0x0000
Dec 27 11:36:23.464 ALM: dot1x-sm:[5065.f339.a045, Fa0/32] Posting EAPOL_START on Client 0xF200002E
Dec 27 11:36:23.464 ALM: dot1x_auth Fa0/32: during state auth_authc_result, got event 4(eapolStart) (ignored)
Dec 27 11:36:28.463 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] queuing an EAPOL pkt on Auth Q
Dec 27 11:36:28.463 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:28.463 ALM: dot1x-packet: length: 0x0000
Dec 27 11:36:28.463 ALM: dot1x-ev:[Fa0/32] Dequeued pkt: Int Fa0/32 CODE= 0,TYPE= 0,LEN= 0
Dec 27 11:36:28.463 ALM: dot1x-ev:[Fa0/32] Received pkt saddr =5065.f339.a045 , daddr = 0180.c200.0003, pae-ether-type = 888e.0101.0000
Dec 27 11:36:28.463 ALM: dot1x-packet:[5065.f339.a045, Fa0/32] Received an EAPOL-Start packet
Dec 27 11:36:28.463 ALM: dot1x-packet:EAPOL pak rx - Ver: 0x1 type: 0x1
Dec 27 11:36:28.463 ALM: dot1x-packet: length: 0x0000
Dec 27 11:36:28.463 ALM: dot1x-sm:[5065.f339.a045, Fa0/32] Posting EAPOL_START on Client 0xF200002E
Dec 27 11:36:28.463 ALM: dot1x_auth Fa0/32: during state auth_authc_result, got event 4(eapolStart) (ignored)
Authentication is passed but authorization is not. On the Cisco ISE we see that server is sending right policy to the switch port.
01-02-2023 07:05 AM
>>>On the Cisco ISE we see that server is sending right policy to the switch port. <<<
-> what do you mean by this statement ?
I believe a policy is not sent to the switch ? but executed by ISE , and then an ACL is sent to the switch
my guess is the ACL sent to the switch is faulty (wrong syntax or not compatible)
01-02-2023 07:15 AM
authentication order mab dot1x
authentication priority dot1x mab <<<- only try change the priortiy setting put dot1x first
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