Bug ID 769801: Internal tmm UDP filter does not set checksum

Last Modified: May 29, 2024

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, 14.1.0.5, 14.1.0.6, 14.1.2, 15.0.0, 15.0.1

Fixed In:
15.1.0, 15.0.1.3, 15.0.1.1, 14.1.2.1

Opened: Apr 05, 2019

Severity: 3-Major

Symptoms

An internal tmm UDP filter does not set checksum for outgoing UDP packets.

Impact

Even though a UDP packet with no checksum is permitted, it could cause some problems with some firewalls/servers.

Conditions

-- An internal tmm UDP filter is in use.

Workaround

For internal tmm udp filters, add the following to the UDP profile in use: no_cksum 0

Fix Information

Internal tmm UDP filters set checksum for outgoing UDP packets.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips