An software layer gateway (ALG) is a community machine that operates on the software layer of the Open Programs Interconnection (OSI) mannequin. It mediates communication between two networks, usually a personal community and a public community, such because the web. ALGs are used to supply safety, entry management, and different companies.
ALGs are essential as a result of they might help to guard networks from assault, make sure that solely licensed customers can entry sure sources, and enhance the efficiency of community purposes. For instance, an ALG can be utilized to: