SAProuter Installation

1. Create the subdirectory SAProuter in the directory /usr/sap/.    

1. Download the latest version from service.sap.com.

1. Copy programs 'saprouter' and 'niping' into the   directory /usr/sap/saprouter.      

1. Add the following lines to the file /users/<SID>adm/startsap_<hostname>_<instance number> before the lines '#Start OS-Collector    
   daemon'.                                                         
    ---------------------------------------------------------------                                                                
   #                                                                
   # Start saprouter                                                 
   #                                                                
   SRDIR=/usr/sap/saprouter                                         
   if [ -f $SRDIR/saprouter ];then                                  
      echo "\nStarting saprouter Daemon "   tee -a $LOGFILE         
      echo "                            "   tee -a $LOGFILE         
      $SRDIR/saprouter -r -W 30000 -R $SRDIR/saprouttab \           
                       tee -a $LOGFILE &                            
   fi
   -----------------------------------------------------------------

This entry automatically starts the SAProuter during the system  start and it ensures that the SAProuter is always started. Since the  SAProuter should continue to run after R/3 is shut down no  respective entry is included in the Stopsap Script. If you boot the   R/3 several times, the system displays error messages when the   SAProuter is started. You can ignore these error messages. The entry  of the SAProuter in the Startup Script is a recommendation.

1. However,  you can also start the SAProuter manually using  saprouter -r                                                     

The corresponding routing table must be maintained in                
/usr/sap/saprouter/saprouttab.
 
If you do not want an authorization check use the line 'P  * * *'.   

来源:http://www.sapsecurityonline.com/oss/saprouter_install.htm