Bug ID 523995: IPv4 link-local addresses can cause TMM crash when used in conjunction with ECMP routes

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8

Fixed In:
12.0.0, 11.6.1

Opened: May 19, 2015
Severity: 2-Critical

Symptoms

TMM can crash and ECMP routes via IPv4 link-local addresses may not work correctly.

Impact

Traffic disrupted while tmm restarts.

Conditions

This happens only for specific IP range with dynamic routing and multiple next hops.

Workaround

Avoid using 169.254 prefix.

Fix Information

ECMP routes are working correctly and TMM does not crash

Behavior Change