Configuring with Web Based Management   
4.7 "Security" menu 
  SCALANCE SC-600 Web Based Management (WBM) 
330  Configuration Manual, 10/2021, C79000-G8976-C475-03 
•  Request Virtual IP 
When enabled, a virtual IP address is requested from the remote station during 
connection establishment. 
•  Timeout [s] 
Only necessary with the "on demand" setting. Enter the interval after which the VPN 
connection will be terminated. If no packets are sent during this time, the VPN 
connection is automatically terminated. 
4.7.6.4  Authentication 
On this WBM page, you specify how the VPN connection partners authenticate 
themselves with each other. 
 
Description 
The table contains the following columns: 
•  Name 
Shows the name of the VPN connection to which the settings relate. 
•  TLS Auth. Key 
Select the key file used to sign the TLS packets. If the incoming TLS packets are not 
signed with this key, they are discarded.  
•  Direction 
Specify the direction. If you select 0, 1 must be set on the partner and vice versa. With 
this setting, you restrict the clients that can authenticate themselves.  
Select "none" if nothing is set on the OpenVPN server. With "none", this setting is 
disabled.