Guest

Preview Tool

Cisco Bug: CSCun07779 - IPSec malfunctions when crypto ACL contains overlapping/duplicate entry

Last Modified

Nov 27, 2020

Products (1)

  • Cisco Adaptive Security Appliance (ASA) Software

Known Affected Releases

9.1(4)

Description (partial) 

Symptom:
When duplicate entry exists in a Crypto ACL, ikev1 and ikev2 shows unusual behaviors.

1. Ikev2 - here ASA creates multiple child SAs for the same pair of source and destination.
2. Ikev1 - unable to pass traffic (no encaps and decaps can be seen), even if the sa is up and both of the sides are using correct pair of SPIs.

Conditions:
This behavior is seen when a crypto access-list with a duplicate entry is applied to a crypto-map entry.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.