Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1
Fixed In:
13.0.0, 12.1.2
Opened: Aug 08, 2016 Severity: 3-Major
When a sip profile is in use and receives an acknowledgment packet missing the Max-Forwards header, BIG-IP will treat the packet as un-forwardable and does not forward the ACK. This can be experienced as a specific cilent being unable to make a call.
BIG-IP treats packets with the missing header as having a value of 0, which means "Do not forward".
This would only be seen when BIG-IP is connected to specific clients that fail to populate the Max-Forwards header on an ACK.
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