11.3.2 Options
In this menu, you can make general settings of the global PPTP profile.
Fig. 140:
VPN
->
PPTP
->
Options
The menu, VPN -> PPTP -> Options consists of the following fields:
Fields in the Options Global Options menu
Field
Description
GRE Window Adaption
Select whether the GRE Window Adaptation is to be enabled.
This adaptation only becomes necessary if you have down-
loaded service pack 1 from the Microsoft Windows XP page and
installed it. Since, in SP 1, Microsoft has changed the confirma-
tion algorithm in the GRE protocol, the automatic window adapt-
ation for GRE must be turned off on the funkwerk side.
The function is activated with
Enabled
.
The function is enabled by default.
GRE Window Size
Enter the maximum number of GRE packets that can be sent
without confirmation.
Windows XP uses a higher initial reception window in the GRE,
which is why the maximum send window size on the funkwerk
11 VPN
Funkwerk Enterprise Communications GmbH
356
bintec R1xxx/R3xxx/R4xxx