Because a SAP gateway cannot start an RFC server program with remote shell on another machine via SAProuter, it is necessary to install a SAP gateway on a machine in the network where the RFC server program will be run. It should be the same machine for a better performance.

One or more SAProuters can be used. The following example shows

• two different networks with two SAProuters and

• how an RFC server program can be started by an SAP gateway and how it communicates with an R/3 System running on another network.

Entry in the route permission table of SAProuter on host_r2 in Network_2:

Entry in the route permission table of SAProuter on host_r1 in Network_1:

A destination in transaction sm59 can be defined as follows:

• 32 bytes for R/3 Release <= 3.0C

• 64 bytes for R/3 Release 3.0D

• 100 bytes for R/3 Release >= 3.0E.