BugZero | F5 BugID 816881 - Serverside conection may use wrong VLAN when virtu...

F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

Last updated on July 18th, 2026

BugZero Risk Score
6.9 Medium

Overall: 6.9

Severity: 7.3

Community: 4.2

Lifecycle: 8.3

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Bug Details

Priority: 3-Major
Status: Verified
Impact Category: Local Traffic Manager

Description

Symptoms

Server syn is flowing on the wrong VLAN, when tmm tries to establish a server connection. The BIG-IP system sends RST packets of unmatched VLAN/MAC combination

Impact

Some client connections fail to establish

Conditions

-- Virtual wire is configured . -- Clientside data and handshake come in on different VLANs.

Workaround

None.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions: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, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5

Fixed versions: 16.0.0, 15.1.1, 14.1.2.8

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 16.0.0, 15.1.1, 14.1.2.8

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F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

Last updated on July 18th, 2026

BugZero Risk Score6.9 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

F5 - Defect ID: 816881

Serverside conection may use wrong VLAN when virtual wire is configured

Last updated on July 18th, 2026

BugZero Risk Score6.9 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.9 Medium

BugZero Risk Score
6.9 Medium