SAP NetWeaver AS ABAP Release 740, ©Copyright 2014 SAP AG. All rights reserved.
Error in RFC destination after IP address has changed
After the IP address of a host was changed, the maintained RFC destinations using the host as a target do not work.
Cause and conditions
If you enter the host name when you create an RFC destination (for example hs0330), it is stored in table RFCDES (destination administration) as an IP address.
This speeds up the connection of a remote function call, since the host name does not repeatedly have
to be converted into an IP address. Furthermore, the length of a host name can be any length, which is not suitable for storage in table RFCDES.
However, problems do occur if the IP address of the target host changes. When this happens, you must adjust the corresponding RFC destinations.
Notes:
Solution
If the target host name is not entered as an SAP router name and you change the IP address of the host, you must adjust the relevant RFC destinations.