SSL VPN Compression Options

The comp-lzo option has been deprecated in OpenVPN version 2.4 and replaced with the compress lzo option.  In versions 10.7.5 and newer the configuration file exported by Ecessa devices uses comp-lzo by default but also has the compress lzo option commented out.  To switch to the newer option the configuration file can be edited to comment out the comp-lzo line and uncomment the compress lzo line.  The following code blocks show what the configuration file should look like to use each option.

To use comp-lzo:

# Compression Settings
comp-lzo

# Clients that do not support comp-lzo option
# compress lzo

To use compress lzo:

# Compression Settings
# comp-lzo

# Clients that do not support comp-lzo option
compress lzo

The following matrix shows which options can be used in the configuration file for different versions of the OpenVPN client.  Version 2.4 supports both the deprecated comp-lzo option and newer compress lzo option but will display a warning when connecting using the deprecated version.