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Cisco Bug: CSCuo02489 - Deny traffic with log keyword is permitted through

Last Modified

Aug 06, 2018

Products (5)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch

Known Affected Releases

6.1(2)I2(1)

Description (partial)

Symptom:
During testing of Cisco Nexus 9000 Series Switches, it was found that when an ACE entry in a deny ACL has the
log keyword present, packets are rate-limited and sent to software for logging purposes. These logged packets
should be dropped by software ACL. However, they get forwarded to the final destination although the ACL
applied denies the traffic.

Conditions:
This was observed on Cisco Nexus 9000 Series Switches only running versions prior to this bugfix.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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