INSYS MoRoS GPRS 2.1 PRO, Manual

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MoRoS GPRS 2.1 PRO Functions
12.6.6 Setting Up a PPTP Server
The settings for the MoRoS GPRS 2.1 PRO as PPTP server are configured here. A
maximum of 5 PPTP clients can log on to this server at the same time. However, it is
possible to create more users, but only 5 tunnels can be active at the same time.
Configuration via the web interface
In order to use the MoRoS GPRS 2.1 PRO as PPTP server, check in the
menu "Dial-In", "Dial-Out", or "LAN (ext)" on the page "PPTP server" the
checkbox "Activate PPTP server".
In order to display the messages of the last connection, select the link
"Display log of last connection".
In order to select the authentication method for the PPTP client at the
server, select this from the drop-down list "Authentication". If the data
traffic is to be encrypted via the PPTP connection using MPPE, the au-
thentication type MS-CHAP-v2 is mandatory.
In order to select the encryption for the PPTP connection, select this from
the drop-down list "Encryption". The same encryption must also be con-
figured for the client.
In order to adjust the MTU (maximum permissible number of bytes in a
packet to be received), change the entry in the entry field "MTU (Maxi-
mum Transmission Unit)".
In order to adjust the MRU (maximum permissible number of bytes in a
packet to be sent), change the entry in the entry field "MRU (Maximum
Receive Unit)".

The default settings of MTU and MRU are suitable for most applications
and do not need to be modified usually.
Enter the IP address of the local tunnel end into the field "IP address of
VPN tunnel local". If no explicit address is specified, the PPTP server will
use the IP address 192.168.0.1. If this address is already reserved, another
address can be specified here.
Define the available IP address pool for the tunnel ends of the PPTP cli-
ents in the fields "IP address pool". This pool must be in the network of
the LAN. The PPTP clients address their destination directly with IP ad-
dresses in the LAN of the MoRoS GPRS 2.1 PRO.
In order to add a new user, that is permitted for the connection of PPTP
clients, enter a user name and a password into the respective fields for
this. Click on "OK" to take over the user. You can delete existing users by
checking the checkbox in the column "delete" of the respective user and
clicking on "OK".
In order to confirm all settings for the loaded tunnel made above, click on
"OK".
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