Last Modified: Jul 24, 2024
Affected Product(s):
BIG-IP LTM
Fixed In:
17.1.1, 16.1.5
Opened: Jun 15, 2023 Severity: 3-Major
SIP Reply with a missing FROM in the header is dropped.
SIP reply drop impacts the client not getting a response.
- SIP header not compliant with RFC requirement that a FROM must be present.
None
Set allow-unknown-methods to be enabled in the SIP session profile, which relaxes the SIP parser to allow unknown SIP messages to be used.