Bug ID 455006: Invalid data is merged with next valid SIP message causing SIP connection failures

Last Modified: Nov 22, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.6.0, 11.5.1, 11.4.1, 11.2.1, 10.2.4, 10.2.3

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.3, 11.5.1 HF5, 11.4.1 HF6, 11.2.1 HF15, 10.2.4 HF12

Opened: Apr 01, 2014
Severity: 4-Minor
Related Article:


SIP phone connections fail.


SIP phone connections fail.


SIP over UDP.


Create a packet filter to discard the invalid UDP datagrams.

Fix Information

Invalid UDP datagrams that interfered with SIP processing are now dropped.

Behavior Change