Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.0, 11.5.1
Fixed In:
12.0.0, 11.5.3
Opened: Apr 01, 2014 Severity: 4-Minor Related Article:
K50532341
SIP phone connections fail.
SIP phone connections fail.
SIP over UDP.
Create a packet filter to discard the invalid UDP datagrams.
Invalid UDP datagrams that interfered with SIP processing are now dropped.