Bug ID 595921: VLAN groups with no Self IP addresses defined might generate ICMP messages with loopback addresses.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 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

Fixed In:
13.0.0

Opened: May 26, 2016

Severity: 3-Major

Related Article: K27057727

Symptoms

VLAN groups with no Self IP addresses defined might generate ICMP messages with loopback addresses.

Impact

Traffic destined for the virtual server might be rejected with an ICMP unreachable sourced from a loopback address.

Conditions

Configuration of a virtual server on a VLAN group that does not have a Self-IP configured.

Workaround

Use a Self IP address on the VLAN group.

Fix Information

The BIG-IP system no longer sends ICMP from loopback addresses when in use with a VLAN group without a configured Self IP address.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips