10-02-2025 03:09 AM
Hello,
I'm trying to configure MAB authentication using Cisco ISE and a switch, but I'm running into an issue:
When I do not configure MAB on the switch, the MAC address of the client shows up normally in the MAC address table.
When I enable the MAB configuration, the switch does not receive any MAC address from the client (it shows 0000.0000.0000), even though the MAB process is running.
Additional info:
Switch version:
When using 802.1X, authentication works correctly.
It seems like MAB is not learning or passing the client MAC address properly
Has anyone faced this issue before? Is it a known limitation/bug of this IOL image?
Any workaround to test MAB in a lab environment?
Thanks in advance.
10-02-2025 04:38 AM
have you tried vIOSL2 ? or Cat9K image.
=====Preenayamo Vasudevam=====
***** Rate All Helpful Responses *****
10-02-2025 08:05 AM
hello ,
thank you for the suggesting ,
I'im using pnetlab , and i don't have access to the CLI , so i can't upload images
10-02-2025 08:14 AM - edited 10-02-2025 08:24 AM
i used pnetlab - IOL have some versions have Limitations
i tried below version as per my notes it works for me
SW4#show version
Cisco IOS Software, Linux Software (I86BI_LINUXL2-ADVENTERPRISEK9-M), Version 15.2(CML_NIGHTLY_20190423)FLO_DSGS7, EARLY DEPLOYMENT DEVELOPMENT BUILD, synced to V152_6_0_81_E
interface eth 0/1
switchport host
authentication open
authentication host-mode multi-auth
authentication order mab
authentication priority mab
authentication port-control auto
mab
dot1x pae authenticator
SW4#show authentication sessions interface ethernet 0/1 details
Interface: Ethernet0/1
MAC Address: 50d6.9f00.9dff
IPv6 Address: Unknown
IPv4 Address: 5.2.35.2
User-Name: 50-D6-9F-00-9D-FF
Status: Authorized
Domain: DATA
Oper host mode: multi-auth
Oper control dir: both
Session timeout: N/A
Restart timeout: N/A
Periodic Acct timeout: N/A
Session Uptime: 225s
Common Session ID: 960107220000000E00282A68
Acct Session ID: 0x00000001
Handle: 0x6D000003
Current Policy: POLICY_Et0/1
Local Policies:
Service Template: xxxxxxxxxxxxxx (priority 150)
Security Policy: Should Secure
Security Status: Link Unsecure
Server Policies:
Vlan Group: Vlan: 305
ACS ACL: xxxxxxxxxxxxxxxxx
Method status list:
Method State
mab Authc Success
=====Preenayamo Vasudevam=====
***** Rate All Helpful Responses *****
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