Bug ID 743896: Gratuitous ARP not sent on interface up

Last Modified: Apr 28, 2025

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

Known Affected Versions:
12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Opened: Sep 12, 2018

Severity: 3-Major

Symptoms

Gratuitous ARP not seen when an interface comes up: different behavior depending on software version. On BIG-IP software version 11.6.x and on BIG-IP Virtual Edition (VE), version 13.1.x, when interface is UP, after 3 seconds, the BIG-IP system sends GARP out. On version 12.1.2,the BIG-IP system does not send GARP upon interface UP.

Impact

No GARP for self-ip addresses on interfaces.

Conditions

The interface transition from DOWN to UP state.

Workaround

None.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips