This item gets you the ability to tunnel between OPC DA Servers Only - see the UA+DA pack if you need to tunnel UA or UA and DA
One license is required for each tunnel endpoint
This item is a perpetual license that includes the first year of support & maintenance. You own the license and have the option to renew support & maintenance after the first year in order to receive free upgrades and continued support.
This product is licensed per machine or virtual instance that you plan to install it on.