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

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
11.4.1, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 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, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
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