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Cisco Bug: CSCur18916 - dot1x on 15.2(1)E1 3750X doesn't forward DHCP on uplink

Last Modified

Nov 27, 2020

Products (1)

  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases


Description (partial)

The switch stack doesn't forward DHCP on uplink while not dot1x authenticated

Switch: WS-C3750X

IOS: 15.2(1)E1 

Interface configuration:
interface GigabitEthernet1/0/1
 switchport access vlan 100
 switchport mode access
 switchport voice vlan 300
 ip access-group ACL-DEFAULT in
 authentication event fail action next-method
 authentication event server dead action reinitialize vlan 49
 authentication event server dead action authorize voice
 authentication event server alive action reinitialize 
 authentication host-mode multi-auth
 authentication open
 authentication order dot1x mab
 authentication priority dot1x mab
 authentication port-control auto
 authentication violation restrict
 snmp trap mac-notification change added
 snmp trap mac-notification change removed
 dot1x pae authenticator
 dot1x timeout tx-period 10
 spanning-tree portfast
 spanning-tree bpduguard enable
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