Bug ID 750477: LTM NAT does not forward ICMP traffic

Last Modified: Jul 12, 2023

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3

Fixed In:
15.0.0, 14.1.0.5

Opened: Nov 20, 2018

Severity: 3-Major

Symptoms

ICMP traffic that matches LTM NAT object on a BIG-IP system, is not forwarded through but instead is dropped on the BIG-IP system.

Impact

Client ICMP traffic (matching LTM NAT) is not forwarded to the destination causing traffic disruption.

Conditions

-- LTM NAT object is configured on the BIG-IP system. -- The BIG-IP system receives ICMP traffic matching the LTM NAT object.

Workaround

None.

Fix Information

ICMP traffic matching an LTM NAT object is now forwarded to the destination as expected.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips