There is often confusion around multiplexing and licensing, as some IT managers feel that the process will reduce the number of licenses that are required, when in fact, that is not the case. Multiplexing is used to pool connections, to re-route information, and reduce the number of devices or users that access or use products. It is sometime referred to as pooling as well.
With Microsoft, multiplexing will not reduce the number of CALs required to access servers. Although it seems like a natural outcome of pooling software and connections, it doesn’t affect licensing in your favor.
Don’t be fooled!