error message in controller log: "Controller: login - unauthorized probe (IP/port) "

Products

• DX Infrastructure Management

Issue/Introduction

What does this log message mean? Should I be concerned?

Aug 26 09:08:28:731 [5708] 0 Controller: -------------------------------------------------------------------------------------------------------- 
Aug 26 09:08:28:731 [5708] 0 Controller: ----- Robot controller 9.33HF4 [Build 9.33HF4.1858, Aug 25 2021] started ----- 
...
Aug 26 09:09:01:440 [5708] 0 Controller: login - unauthorized probe (robotip/port) 

 

 

Cause

This is caused by the ppm probe.  It is benign.

The reason this happens is a sort of race condition between threads in ppm, and the first login attempt comes before the probe is otherwise fully initialized, but the probe self-corrects this.

The first login fails with the "unauthorized probe" but within a minute or so - sometimes immediately depending on when the initialization catches up - then the probe fully initializes, and repeats the login which is then successful and allows the probe to continue normal operation.  This can be seen at loglevel 5:

=====================

Aug 31 05:24:47:723 [9112] 5 Controller: RREQUEST: login <-10.74.32.179/53664  h=83 d=189 fd=1004
Aug 31 05:24:47:723 [9112] 5 Controller:  head  mtype=100 charset=windows-1252 cmd=login seq=1 ts=1630412687
Aug 31 05:24:47:723 [9112] 5 Controller:  data  mode=1 nimcprid=466831 prid= crdta=HEX(112):4f71afc227f10b1494ef6838acf7773e type=1 crlen=98
Aug 31 05:24:47:723 [9112] 2 Controller: login from 10.74.32.179/53664 type=1 mode=1
Aug 31 05:24:47:723 [9112] 0 Controller: login - unauthorized probe (10.74.32.179/53664)

Aug 31 05:24:47:776 [9112] 5 Controller: RREQUEST: login <-10.74.32.179/53671  h=83 d=194 fd=1016
Aug 31 05:24:47:776 [9112] 5 Controller:  head  mtype=100 charset=windows-1252 cmd=login seq=1 ts=1630412687
Aug 31 05:24:47:776 [9112] 5 Controller:  data  mode=1 nimcprid=466831 prid=ppm crdta=HEX(112):4f71afc227f10b1494ef6838acf7773e type=1 crlen=102
Aug 31 05:24:47:776 [9112] 2 Controller: login from 10.74.32.179/53671 type=1 mode=1

 

 

Environment

Release : 20.3

Component : UIM - PPM

Resolution

There is no impact and this error message is transient and not cause for concern.