Bug ID 741869: Enable SysDb variable 'Connection.VgL2Transparent' prior to operating the BIG-IP in L2 transparent mode using VLAN groups.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3

Fixed In:
15.0.0, 14.1.4.4

Opened: Aug 28, 2018

Severity: 2-Critical

Symptoms

Traffic is not passed across the VLAN group.

Impact

Packets are not forwarded.

Conditions

BIG-IP system configured to operate in L2 transparent mode using VLAN groups.

Workaround

Configure a transparent next hop on the virtual server.

Fix Information

SysDb variable 'Connection.VgL2Transparent' has been added to enable this functionality.

Behavior Change

A new SysDb variable called 'Connection.VgL2Transparent' has been added. It can be enabled to enable L2 transparent forwarding in a VLAN group without needing to configure a transparent next hop on the virtual server. Usage: tmsh modify sys db Connection.VgL2Transparent value <enable|disable> It is disabled by default.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips