Bug ID 457130: Upgrade to v11.5, loading config enabling icmp-echo on network virtual-addresses

Last Modified: Feb 13, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4

Fixed In:
11.6.0, 11.5.1 HF5

Opened: Apr 14, 2014
Severity: 3-Major
Related AskF5 Article:
K15469

Symptoms

After loading the configuration (e.g. "tmsh load sys config"), network virtual-servers which should have ICMP-echo disabled may incorrectly have it enabled.

Impact

IP addresses which are actually offline / non-existent may start responding to "ping". This confounds troubleshooting, and may adversely affect devices which have ICMP monitors configured.

Conditions

Network virtual servers configured

Workaround

Change icmp-echo value back to disabled after load

Fix Information

Configuration loads correct virtual-address icmp-echo values

Behavior Change