SAPGUI (for Java) using with wan=true

Question

Hi all,
  I use java version of SAPGUI for linux. I've found a way how to integrate logon items into my system menu including client and username settings on logon screen: run guistart with conection string, e.g.
path/to/gui/guistart '/H/192.168.1.1/S/3200&clnt=111&user=pvavra&wan=true'
  I use this way from SAPGUI version 6.30. With newer versions of SAPGUI I've found that some systems accept parameters to wrong position (I have to fill username to parameter clnt: clnt=pvavra to fill username). Later I've noted that no logon parameters are accepted when I use connect string with parameter wan=true.  Version 7.10 brings new feature: It write error mesage "Can't fill in logon data when using a wan connection".  Knows anybody why this way is imposible now? Is it an official policy of SAP or a bug? I usually need to connect over thin internet line to SAP systems and pre-filled logon screen is really comfortable feature. Does anybody know a workaround for such situation?

Answer 1

So I fixed the problem.  In the VPN (PPTP) configuration, I had to:
- Set the encryption from "Automatic" to "Maximum"
- Click "Advanced" and check the box for "Send all traffic over VPN connection".
Both of these selections were required.  You'd think "Automatic" would have been "automatic" about selecting the encryption level, but apparently it wasn't.
It's unfortunate I have to send all traffic through the VPN as this slows or even prevents other internet-using applications to operate properly while I'm connected to the VPN.
I think there's a way to edit a routing file and set it up in such a way to only have SAP use the VPN while the other applications bypass it, but I don't know how to do it and I don't really have time to learn it myself.
Anyway, hope this helps people out there.  Thanks guys for weighing in with advice.
Chris