Bug ID 905153: HW offload of vector 22 (IPv6 Duplicate Extension Headers) not operational

Last Modified: Apr 17, 2024

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2

Opened: May 01, 2020

Severity: 2-Critical

Symptoms

All mitigation for IPv6 Duplicate Extension Headers DoS vector happens at the software level. The counter in int_drops column reads 0 (zero) in dos_stat tmctl for that vector.

Impact

You cannot offload DDoS vector 22 to FPGA hardware. Only the software-based DDoS mitigation is supported.

Conditions

Double IPv6 headers in the packets (except Destination Options header).

Workaround

Use software DDoS mitigation for this vector.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips