Bug ID 424653: DTLS retransmit issues

Last Modified: Feb 13, 2019

Bug Tracker

Affected Product:  See more info
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 AskF5 Article:
K16159

Symptoms

There are two DTLS retransmit issues.

Impact

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

Conditions

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

Workaround

None.

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