Preview Tool

Cisco Bug: CSCsz84562 - H323 inspection not openning pinholes for RTCP packets

Last Modified

Jan 09, 2017

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)

During videoconferencing messages similar to following syslog can be seen in the logs:
%ASA-4-106023: Deny udp src outside: dst inside: by 
access-group "outside_access_in" [0x2c1c6a65, 0x0]

The video conference progresses normally.

Upon inspection those are RTCP packets for which no pinhole in firewall policy was open. 

h323 inspection enabled.
Restrictive interface policy.
Bug details contain sensitive information and therefore require a 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.