Bug ID 813701: Proxy ARP failure

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 14.1.0,,,,,, 14.1.2,,,,,,, 15.1.0,,,,

Fixed In:

Opened: Aug 09, 2019
Severity: 3-Major


In certain configurations, and when the BIG-IP system does not have a directly connected route to the request sender, proxy ARP may fail, leading to dropped ARP replies.


ARP replies are dropped, leading to connection failures.


-- Running v12.1.4.1 or with engineering hotfix 0.89.2. -- ARP requests and replies are processed by different TMMs. -- A directly connected route to the request sender is not available.


Create a self IP in the same subnet as the ARP request senders. This creates the necessary directly connected route.

Fix Information


Behavior Change