Bug ID 652973: Coredump observed at system bootup time when many DHCP packets arrive

Last Modified: May 29, 2024

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

Known Affected Versions:
12.1.2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3

Fixed In:
13.1.0, 13.0.1, 12.1.3

Opened: Mar 23, 2017

Severity: 2-Critical


During system bootup, system coredump is observed when many DHCP packets arrive before system is fully ready and many flow entry creation failures are observed


System crash and coredump.


-- BIG-IP DHCP proxy is in forwarding mode. -- DHCP relay agent in front of BIG-IP modifies giaddr field of DHCP packets to its own IP address. -- DHCP packets arrive during system bootup and before system is fully ready (i.e., some VLANs, interfaces and routes are not fully up).


Make sure system has come up completely before sending DHCP packets to the system.

Fix Information

Coredump no longer occurs under these conditions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips