How To Fix GHO_NET030 - Link &1: connection from &2 to &3 is not allowed

GHO_NET030 - Overview

• Message type: E = Error

• Message class: GHO_NET - Message class for Production Network Modelling

• Message number: 030

• Message text: Link &1: connection from &2 to &3 is not allowed

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 GHO_NET030 - Link &1: connection from &2 to &3 is not allowed ?

  The SAP error message GHO_NET030 indicates that there is a connection issue between two systems or components, where the connection from one system (identified as &2) to another (identified as &3) is not allowed. This error typically arises in the context of network connections, particularly in scenarios involving SAP Gateway, RFC (Remote Function Call), or other network-related configurations.
  
  Cause:
  
  Network Restrictions: The connection may be blocked due to network policies or firewall settings that prevent communication between the two systems.
  
  Configuration Issues: There may be incorrect settings in the SAP system configuration, such as the RFC destination settings or the logical system configuration.
  Authorization Issues: The user or system trying to establish the connection may not have the necessary authorizations to connect to the target system.
  Incorrect Hostname or IP Address: The hostname or IP address specified in the connection settings may be incorrect or unreachable.
  SAP Router Configuration: If using an SAP router, the routing