I/G/C/B/A-Series f/w Fails MAC Authentication with "Mac-vlan error adding macAuth user" message

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Article ID: 14987 

I-Series, firmware through
G-Series, firmware through
C5-Series; firmware through, through
C3-Series, firmware through
B5-Series; firmware through, through
B3-Series, firmware through
A4-Series; firmware through, through

MAC Authentication has been configured.

Mac authentication fails for apparently random users.

Each time a MAC Authentication fails, syslog ('show logging buffer') records a distinctive "Policy_dist: Mac-vlan error adding macAuth user" error; for example:
<162>May 30 12:07:24 UPN[208687976]: policy_dist.cpp(6156) 714453 %% Policy_dist: Mac-vlan error adding macAuth user( mac 050569c02e vlan 2003) on port 32

Upgrade to 6.61 firmware or higher.
Release notes state, in the 'Changes and Enhancements in' section:
18432   Corrected an issue that resulted in the message "Policy_dist: Mac-vlan error adding macAuth user", and prevented properly applying the authenticating users VLAN attribute to the hardware.

Also fixed as of C5/B5/A4-Series f/w (though not stated in release notes).

Pre-upgrade workaround: A system reboot resolves the issue for a few days.
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Posted 4 years ago

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