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Background documentationSNC-Protected Communication Paths in SAP Systems

 

The following components support the use of SNC for connections.

Note Note

SNC protection only applies to connections that use SAP protocols (dialog, RFC or CPIC) protocols. For internet protocols, use SSL for protection.

End of the note.
SNC-Protected Communication Paths

From

To

Comment

SAP GUI for Windows or SAP GUI for Java

SAP system application server

-

SAP system application server

SAP lpd

-

External RFC or CPIC program

SAP system application server

Example: SAP Java Connector

SAP system application server

External RFC or CPIC program

Example: SAP Java Connector

SAProuter

SAP system application server

-

SAProuter

SAProuter

-

Internet Transaction Server

SAP system application server

-

You cannot apply SNC protection to the communication path between your application servers and your database. Therefore, we recommend that you keep your application and database servers in a secured LAN that is protected with a firewall and SAProuter (see the following figure).

You can also use SNC between two SAProuters to build a secure tunnel between networks (see the following figure).