Bug ID 488598: SMTP monitor on non-default route domain fails to create socket

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP 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, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 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, 11.6.0 HF5

Opened: Nov 04, 2014

Severity: 3-Major

Related Article: K16631

Symptoms

SMTP monitor on non-default route domain fails to create socket

Impact

SMTP monitor pool members are DOWN. If debug logging is enabled for the monitor, the system posts messages in the monitors debug log: Notice 'ERROR: failed to connect 10.50.1.100%20:25 error: couldn't open socket: host is unreachable'.

Conditions

SMTP monitors on a non-default route domain.

Workaround

Create an External monitor using SMTP_monitor.

Fix Information

SMTP monitor no longer fails when using a non-default route domain.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips