LevelOne VOI-8001 - Manual (Page 101)

101
ALG
Some applications have to do Application Level Gateway (ALG) to monitor the
transaction or monitor the payload of the packet. This page let you setup them.
We use mnemonic nouns to describe the specific ALGs. The checked entries will
be enabled by the ALG processing.
For the Non-Standard FTP Port, you have to set the port number to let the ALG
take it as an FTP session.