Installation and Configuration of the Web
Administration Interface for the SAP Web Dispatcher 
Procedure
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1. Install the SAP Web dispatcher in a separate directory as described in Operating the SAP Web Dispatcher.
2. Create a profile file as described in the documentation (Example Profile File of a SAP Web Dispatcher). You also have to set the parameter icm/HTTP/admin_<xx>. The line below sets the URL prefix for the administration to “/sap/wdisp/admin/“ and the path for the ICP control files to “./admin“:
icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin
With this parameter you can further restrict access to the Web administration interface - to a port (e.g. SSL port), to a local host name (e.g. “local host“), or to an external host name (only from this host can the Web administration interface be accessed).
3. Generate the authorization file icmauth.txt using program icmon, by calling icmon ‑a.
4. Unpack the archive icmadmin.SAR with the control files of the Web dispatcher into a subdirectory with the name admin, by calling SAPCAR –xvf icmadmin.SAR admin.
Alternative
You can generate the profile file for the Web dispatcher sapwebdisp.pfl and create the authorization file automatically icmauth.txt (with user icmadm). The SAP Web dispatcher is also automatically started with the generated profile. If the files already exist, they are not changed.
For this purpose use the bootstrap option sapwebdisp –bootstrap, as described in Starting the SAP Web Dispatcher with the Bootstrap Option.
The bootstrap creates a user icmadm with a random four character password:
Web Administration user is "icmadm" with password "2260"
Result
You can now access the Web administration from the browser by entering the URL:
http://<webdisp_host>:<webdisp_port>/sap/wdisp/admin/default.html
in every line. In the logon dialog box enter user icmadm and password 2260.
You can now set up other administration users.
After the SAP Web Dispatcher has been installed you should change the password of user icmadm.