Bug ID 813701: Proxy ARP failure

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
16.0.0, 15.1.0.5, 14.1.2.7

Opened: Aug 09, 2019

Severity: 3-Major

Symptoms

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.

Impact

ARP replies are dropped, leading to connection failures.

Conditions

-- Running v12.1.4.1 or 12.1.3.7 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.

Workaround

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

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips