Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11
Fixed In:
11.6.0, 11.5.2
Opened: Feb 12, 2014 Severity: 2-Critical Related Article:
K15752
Limiting TCP/IP connections on non-default route domains can cause potential non-default route domain monitor issues.
When the issue occurs, the kern.log reports the following message: 'nf_conntrack: table full, dropping packet', and pool monitors flap intermittently.
This occurs because the rules that provide connection tracking are not picked up in the non-default route-domain upon creation.
Disable connection tracking in non-default route domains.
Connection tracking is now correctly disabled in non-default route domains.