Preview Tool

Cisco Bug: CSCte42788 - ASA anyconnect DTLS CONN is torn down when tftp error MSG is rvd- CIPC

Last Modified

Nov 09, 2016

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

8.0(4.33) 8.0(5) 8.2(1.10)

Description (partial)


ASA with anyconnect DTLS connection, when tftp 
inspection is enabled, if a TFTP file transfer is attempted
from the anyconnect client and if  the file is not 
found (or results in any TFTP error message returned), it 
will intermittently disconnect the DTLS session also. 

This will cause a temporary stoppage of traffic flow
as anyconnect client re-establishes the connection. 

This is commonly seen in Cisco IP communicator when it tries to use
TFTP and the file is not on the TFTP server (call manager).


1) TFTP from client and results in a TFTP error message
2) TFTP inspection is enabled
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.