Bug ID 614190: Setting arp.maxentries below expected minimal number of arp entries can have adverse effects

Last Modified: Apr 28, 2025

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

Fixed In:
13.0.0

Opened: Sep 01, 2016

Severity: 2-Critical

Symptoms

The BIG-IP system becomes unresponsive after setting arp.maxentries value.

Impact

Traffic to the BIG-IP system, including via the management IP address.

Conditions

Setting the value for sys db arp.maxentries lower than the actual number of arp entries.

Workaround

Ensure that the value for arp.maxentries is greater than the existing number of arp entries.

Fix Information

The minimum arp.maxentries value has been raised to 520.

Behavior Change

The minimum arp.maxentries value has been raised to 520.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips