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SAP Router and SAP Web Dispatcher

 SAP Router and SAP Web Dispatcher


When I started reading about architecture , I was always confused what is the need and requirement of SAP Router , SAP Web dispatcher and thing that added to confusion was ICM , now we know the ICM handles the Web request but then why we need these two, These are Application level gateway provided by SAP and ICM happens to be on the SAP Application level , SAP Netweaver Application Server level.



SAP ROUTER

SAP WEB DISPATCHER

Filtering Function 

Load balancing and filtering HTTP(S) requests

Used for Routing and Filtering traffic at the SAP Net

work Interface Layer


  1. Filter requests based on the IP address or protocol

  2. Require that a password is sent with request

  3. Require that secure authentication and data encryption occurs at network layer using SCN , Secure Network Communication 


To enforce access control, specify the IP addresses and address patterns that can access your SAP systems in the saprouttab configuration file

The rules to use for filtering the requests are contained in a file in the file system on the server where SAP Web Dispatcher runs.

When using SAProuter you only have to open a single port on firewall for SAP Application server level for its protocol . All connection request needs to be passed through this port (default 3299)

All traffics comes via SAP Web Dispatcher and Load Balancing is also done here

SAProuter complements and does not replace the firewall. We recommend that you use SAProuter and a firewall together. An SAProuter alone does not protect your SAP system network.

SAP Web Dispatcher also supports the use of the Secure Sockets Layer (SSSAP Web Dispatcher also supports the use of the Secure Sockets Layer (SSL) protocol to secure the communications at the transport levelL) protocol to secure the communications at the transport level


Read More :

Example of Network Topology for SAP Router

SAP Web Dispatcher and SAP Router

Blog for SAP Router

SAP guide for SAP Web Dispatcher
















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