Bug ID 512062: A db variable to disable verification of SCTP checksum when ingress packet checksum is zero

Last Modified: Oct 16, 2023

Affected Product(s):
BIG-IP AFM(all modules)

Known Affected Versions:
11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.4.1, 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, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF10

Opened: Mar 12, 2015

Severity: 3-Major

Related Article: K21528300

Symptoms

BIG-IP system drops SCTP INIT multi-homing message with checksum 0x00000000.

Impact

System drops these SCTP packets.

Conditions

This occurs when the SCTP packet's verification tag is 0x00000000 and the checksum also is 0x00000000.

Workaround

None.

Fix Information

Added a db variable to disable verification of SCTP checksum when ingress packet's checksum is zero. The current default behavior is not changed if this db variable is not enabled.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips