The Application Layer Gateway service in Microsoft Windows provides support for third-party plugins that allow network protocols to pass through the Windows Firewall and work behind it and Internet Connection Sharing. ALG plugins can open ports and change data that is embedded in packets, such as ports and IP addresses.
The Application Layer Gateway service in Microsoft Windows facilitates third-party plugins that enable network protocols to bypass the Windows Firewall and operate behind it, as well as Internet Connection Sharing. ALG plugins can open ports, modify data embedded within packets, such as ports and IP addresses.