How To Fix RZ771 - Only 4 or 8-byte IP addresses are possible

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 771

• Message text: Only 4 or 8-byte IP addresses are possible

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 RZ771 - Only 4 or 8-byte IP addresses are possible ?

  The SAP error message RZ771 "Only 4 or 8-byte IP addresses are possible" typically occurs when there is an issue with the configuration of the IP address in the SAP system. This error is related to the handling of IP addresses, particularly in the context of network communication.
  Cause:
  
  Invalid IP Address Format: The error usually arises when an IP address is not in the correct format. For example, if a non-standard or incorrectly formatted IP address is entered, it can trigger this error.
  IPv4 vs. IPv6: The error may also occur if there is a mismatch between the expected IP address format (IPv4 or IPv6) and what is being provided. SAP systems typically expect either a 4-byte (IPv4) or an 8-byte (IPv6) address.
  Configuration Issues: Incorrect configuration in the network settings or in the SAP system's parameters can lead to this error.
  
  Solution:
  
  Check IP Address Format: Ensure that the IP address you are using is in the correct format. For IPv4, it should be in the form of xxx.xxx.xxx.xxx (e.g., 192.168.1.1), and for IPv6, it should be in the form of xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
  Review Network Configuration: Check the network configuration settings in the SAP system. Ensure that the settings are correctly defined for the type of IP address you are using.
  SAP Notes and Documentation: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its documentation and provides solutions for known issues.
  System Parameters: Review the system parameters related to network communication. You may need to adjust parameters in transaction RZ10 or RZ11 to ensure compatibility with the IP address format.
  Consult with Network Administrator: If you are unsure about the correct IP address format or configuration, consult with your network administrator or IT support team for assistance.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on network configuration and IP address handling.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Logs: Check the system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the RZ771 error and ensure that your SAP system is correctly configured to handle IP addresses.