Bug ID 748891: Traffic bridged between VLANs in virtual-wire setups may have the wrong destination MAC in packets that egress from the BIG-IP system.

Last Modified: Jul 12, 2023

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

Known Affected Versions:
14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2

Fixed In:

Opened: Nov 05, 2018

Severity: 3-Major


Potential MAC relearning at the switches the BIG-IP system is connected to.


Packets reach their L3 destination using an unexpected L2 path.


-- DB variable connection.vlankeyed set to disabled. -- Multiple virtual-wires configured on the BIG-IP system. -- Client to server and server to client traffic using different virtual wires on the BIG-IP system.



Fix Information

Connflow next hop and previous hop updates are now done in the correct order for virtual wires.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips