Bug ID 424653: DTLS retransmit issues

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP All(all modules)

Known Affected Versions:
11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF9

Opened: Jul 05, 2013

Severity: 2-Critical

Related Article: K16159


There are two DTLS retransmit issues.


Packet is not transmitted correctly in the first case, and continuous retransmission of the DTLS Finish message in the second case.


1. DTLStransmit uses different codecs to transmit the same packet. 2. Retransmitting the DTLS Finish message has no limit, and can continue indefinitely.



Fix Information

SSL transmit now uses the same codec to transmit the same packet. In addition, you can now set a DTLS Finish message limit, so the retransmission of the Finish message no longer continues indefinitely.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips