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Vladimir_Shishk's avatar
Vladimir_Shishk
Icon for Altocumulus rankAltocumulus
May 19, 2021

Routing problem for connect() in iRule

Good day. I have an iRule script which must send email via connect command through corporate Exchange server: set conn [connect -timeout 3000 -idle 30 -status conn_status -myaddr 127.1.1.254 $mail...
application delivery
iRules
LTM
  • AlexBCT's avatar
    AlexBCT
    May 19, 2021

    Hi Vladimir,

     

    Have you checked if the TMOS interfaces have access to the mailserver IP using TMOS routes? (Under "Network - Routes" in the GUI)

    As the "telnet" command is run from the management side, it may use either the management interface or a TMOS interface for outbound traffic, whereas the iRules will only use TMOS interfaces for communication.

     

    Here is more details on the (sometimes tricky) management routing; https://support.f5.com/csp/article/K13284

     

    Hope this helps.

     

AlexBCT's avatar
AlexBCT
Icon for Cumulonimbus rankCumulonimbus
May 19, 2021

Hi Vladimir,

 

Have you checked if the TMOS interfaces have access to the mailserver IP using TMOS routes? (Under "Network - Routes" in the GUI)

As the "telnet" command is run from the management side, it may use either the management interface or a TMOS interface for outbound traffic, whereas the iRules will only use TMOS interfaces for communication.

 

Here is more details on the (sometimes tricky) management routing; https://support.f5.com/csp/article/K13284

 

Hope this helps.

 

  • Vladimir_Shishk's avatar
    Vladimir_Shishk
    Icon for Altocumulus rankAltocumulus
    May 20, 2021

    Hi, Alex, thank you for your answer.

    I added a static route to mailserver through Common partition and mailserver stopped to become unreachable, thank you.

    • AlexBCT's avatar
      AlexBCT
      Icon for Cumulonimbus rankCumulonimbus
      May 20, 2021

      Hi Vladimir,

       

      Glad to hear it got solved and nice job on the syntax troubleshooting ;)

      Would be great if you can flag the question as Answered so it may be closed and help the rest of the community.