SAP Knowledge Base Article - Preview

2504600 - Server IP address or hostname changed during live operation

Symptom

  • The IP address or the hostname of the SAP server was changed during the live operation of the system.
  • SAP was not stopped before the change was made, nor restarted after the change.
  • Some of the RFC destinations start to fail after the IP address was changed.
    One of the commonly affected destinations is the "CALLTP_<operating system>".
  • Remote RFC clients fail to logon to the server with a message like:

    LOCATION    SAP-Gateway on host [old hostname of SAP server] / sapgwXX
    ERROR       hostname '[old hostname of SAP server]' unknown

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."


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Environment

  • Product independent
  • Network Infrastructure
  • Client/Server Technology

Product

ABAP platform all versions ; SAP NetWeaver all versions ; SAP Web Application Server for SAP S/4HANA all versions

Keywords

CALLTP_Linux, CALLTP_AIX, CALLTP_WindowsNT , KBA , BC-NET , Obsolete - Formerly used for network tests , BC-CST , Client/Server Technology , Problem

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