SAP GUI 7.20 JAVA

 load balancing configuration, use this connection string,conn=/M/(IP_Address_Message_Server)/S/36(system_number)/G/(nama_group)

not using load balancing system,conn=/H/(IP_Address_server_SAP)/S/32(system_number).

router mode:
conn=/H/sap router internet ip/S/3299/H/host server virtual ip/S/3200