Dot1x inaccessible authentication bypass auth-fail problem with 4510R-E Sup 6-E 12.2(54)SG
We have a problem with Catalyst 4510R-E, Sup 6-E, IOS 12.2(54)SG (same issue repeats with IOS 12.2(53) SG3 as well) do1x authentication when RADIS server is inaccessible. Switch port simple doesn’t go into auth-failed vlan, but stays in access vlan 40.
Same configuration with 3750 switch and IOS 12.2(55)SE works.
Below is the configuration of the switch:
aaa group server radius dot1x
server-private 10.200.1.27 key 7 1
server-private 10.200.1.26 key 7 1
ip vrf forwarding data
ip radius source-interface Vlan100
aaa authentication dot1x default group dot1x
aaa authorization network default none
description TEST DOT1X
switchport access vlan 40
switchport mode access
authentication event server dead action authorize vlan 240
authentication event server alive action reinitialize
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