Bug ID 487660: LSN translation failures when persistence is enabled, cmp-hash is set to src-ip on ingress VLAN and to dst-ip on egress VLAN and using a small port range

Last Modified: Mar 21, 2019

Bug Tracker

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

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 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, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4

Fixed In:
12.1.0, 11.5.3

Opened: Oct 30, 2014
Severity: 3-Major
Related AskF5 Article:
K16268

Symptoms

LSN Translation failures in persistence mode when cmp-hash is set to src-ip on ingress VLAN and to dst-ip on egress VLAN.

Impact

Translation failures. The system posts an error similar to the following: debug tmm9[25268]: 01670012:7: [0.9] Translation failed client 200.200.200.101,10096.

Conditions

Persistence is enabled on the LSN pool, and cmp-hash is set to src-ip on ingress VLAN and to dst-ip on egress VLAN, when the lsn-pool port range is relatively small (under 1000), or a blade is added or removed. Translation mode is NAPT or PBA.

Workaround

Adequately provision the LSN pool.

Fix Information

This release resolves CGNAT translation failures in persistence mode when cmp-hash is set to src-ip on ingress VLAN and to dst-ip on egress VLAN.

Behavior Change