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Cisco Bug: CSCvs91205 - Post ASA firmware upgrade to 9.12.2 Sip traffic is passing though wrong interface.

Last Modified

Sep 02, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.12(2)

Description (partial)

Symptom:
We noticed that the media connection which was supposed to be built between the interface outside to outside was actually built between outside to inside interface.

When we remove the SIP inspection everything was working fine, and we can see the traffic was flowing from outside to outside which is expected flow.

Conditions:
ASA firmware upgraded to 9.12.2, which has SIP inspection enabled,
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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