Configuring with Web Based Management 
  4.7 "Security" menu 
SCALANCE SC-600 Web Based Management (WBM) 
Configuration Manual, 10/2021, C79000-G8976-C475-03 
339 
•  Encryption 
Select the required encryption algorithm.  
–  AES-128-CBC (Default) 
–  AES-192-CBC 
–  AES-256-CBC 
–  DES-EDE3 
–  BF-CBC 
•  Authentication 
Specify the method for calculating the checksum. 
–  SHA256 (default) 
–  SHA384 
–  SHA512 
–  SHA224 
–  SHA1 
–  MD5 
•  LZO Comp. 
–  Disabled (-) 
The compression is disabled. The server cannot enable compression again. 
–  No 
The compression is disabled as default. The server can enable compression. 
–  Yes 
The compression is enabled as default. The server can disable the compression. 
–  Self-adjusting 
As default compression is activated adaptively. Compression is only used when the 
data is good to compress; otherwise, compression is deactivated for a certain time. 
•  Bridged 
Select the bridge ID with the IP address with which the OpenVPN connection should 
run. One bridge ID can be used for multiple connections. 
•  Auto Firewall Rules 
–  Enabled 
For the VPN connection, the firewall rules for access from "External" to "Internal" 
and vice versa are created automatically. In addition to this, access from the 
device to the outside is allowed. You can enable access to specific services of the 
device under "Security > Firewall > Predefined". Ping is enabled by default. 
–  Disabled 
You will need to create the suitable firewall rules yourself.