How To Fix NET011 - Resolution of IP name to IP address

SAP Error Message - Details

• Message type: E = Error

• Message class: NET - Network Messages

• Message number: 011

• Message text: Resolution of IP name to IP address

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message NET011 - Resolution of IP name to IP address ?

  The SAP error message NET011 typically indicates an issue with the resolution of an IP name to an IP address. This can occur in various scenarios, such as when the SAP system is trying to connect to a database, application server, or other network resources, and it cannot resolve the hostname to an IP address.
  Causes of NET011 Error
  
  DNS Configuration Issues: The Domain Name System (DNS) may not be properly configured, leading to the inability to resolve the hostname.
  Hosts File Misconfiguration: The local hosts file may not contain the correct mappings for the hostname.
  Network Connectivity Problems: There may be network issues preventing the SAP system from reaching the DNS server or the target host.
  Firewall Restrictions: Firewalls may be blocking DNS queries or traffic to the target host.
  Incorrect Hostname: The hostname being used may be incorrect or misspelled.
  SAP Profile Configuration: The SAP instance profile may have incorrect settings related to network configuration.
  
  Solutions to NET011 Error
  
  
  Check DNS Configuration:
  
  Ensure that the DNS server is reachable from the SAP server.
  Verify that the DNS server has the correct entries for the hostname you are trying to resolve.
  
  
  
  Update the Hosts File:
  
  On the SAP server, check the hosts file (usually located at /etc/hosts on Unix/Linux or C:\Windows\System32\drivers\etc\hosts on Windows).
  Add the correct IP address and hostname mapping if it is missing.
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or nslookup to test connectivity to the hostname and see if it resolves correctly.
  Check for any network issues that may be affecting connectivity.
  
  
  
  Check Firewall Settings:
  
  Ensure that firewalls are not blocking DNS traffic (UDP/TCP port 53) or traffic to the target host.
  
  
  
  Verify Hostname:
  
  Double-check the hostname for any typos or errors.
  
  
  
  Review SAP Profile Settings:
  
  Check the SAP instance profile for any incorrect network settings. You can do this using transaction RZ10 to view and edit the profile parameters.
  
  
  
  Restart Services:
  
  Sometimes, simply restarting the SAP services or the server can resolve transient issues.
  
  
  
  Related Information
  
  SAP Notes: Check SAP Notes related to network issues and hostname resolution for any specific patches or updates that may be relevant.
  Logs: Review the SAP system logs (transaction SM21) and developer traces (transaction ST22) for additional context on the error.
  Network Tools: Familiarize yourself with network diagnostic tools like traceroute, ping, and nslookup to troubleshoot connectivity issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your network administrator or SAP support for further assistance.