Bug ID 463202: BIG-IP system drops non-zero version EDNS requests

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF1, 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.4.0, 11.4.1, 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, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.1 HF1, 11.5.4 HF2, 11.4.1 HF9

Opened: May 19, 2014

Severity: 3-Major

Related Article: K17086

Symptoms

If a query from a client contains a non-zero EDNS version, the query is dropped instead of sending an appropriate response.

Impact

Dropped queries, retries, and then time-outs occur.

Conditions

This occurs with DNS profile/processing when a client sends a query with non-zero EDNS version.

Workaround

None

Fix Information

If the EDNS version is not zero, the query passes through the filter and is not dropped.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips