We had opened an OSS message for an issue. SAP had asked us to open connection to check the system. But when SAP tried to connect to the system, it encountered the following error
LOCATION: Sap Router on sap router
ERROR: hostname ‘server name’ unknown
In order to avoid this problem, the following needs to be done:
Please add the server ‘server name’ to the /etc/hosts file of your SAP router host.
Additionally check the SAProuttab on the SAP router host for entry like this:
P 126.96.36.199 <server name> 8000
If it does not exist, enter the following the SAProuttab. Activate new saprouttab with the command ‘saprouter -n’ or with restart your SAProuter for the changes to effect. After this was done SAP was able to connect to our system.
CAUTION!!A generic entry of the form ‘p * * *’ is NOT sufficient since this only releases all SAP ports (3200 to 3299) and no ports outside this area.
To find out your router’s ip address, go to transaction SM59 and check the SAPNET_RTCC destination, the message server entry will be of the following format.
The router ip can be obtained from the same. The router IP address can also be obtained from transaction oss1.
To check if router is configured on a host
In Windows, check if SAProuter service is running. In addition to this /usr/sap/saprouter folder should exist with the files saprouter.exe and saprouttab.
Some useful information regarding RFC destinations SAPOSS, SAPNET_RTCC, SAPNET_RFC:
The following notes give information regarding SDCC, SDCCN and SAPNET_RTCC destination: 763561, 216952
The following notes give information regarding destination SAPOSS: 812386, 766505