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Cisco Bug: CSCup89688 - MCL error seen due to "-ip access-list extended word\"

Last Modified

Sep 14, 2019

Products (4)

  • Cisco IOS
  • Cisco Catalyst 6500 Series Virtual Switching Supervisor Engine 720 with 10GE uplinks
  • Cisco Catalyst 6500 Series Supervisor Engine 2T
  • Cisco Catalyst 6500 Series Supervisor Engine 720 / MSFC3

Known Affected Releases


Description (partial)

Standby reloads continuosly due to mcl error

when an access list is configured with an extra character "\" as below:

VSS-Sup2t(config)#ip access-list extended wifi-guest
VSS-Sup2t(config-ext-nacl)# permit ip host any
VSS-Sup2t(config-ext-nacl)#ip access-list extended wifi-guest\
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