An interface is a logical connection to a network. Each interface is identified by a unique index. Multicast routing protocols (such as MOSPF) deal with all types of interfaces similarly.
In the case of a LAN interface, the interface corresponds to an actual physical device in the computer (the LAN adapter). In the case of a WAN interface, the interface is mapped to a port when a connection is established. WAN interfaces can be based on tunnels and the port could be a virtual private network (VPN) port.
Windows 2000 and later operating systems support a "point-to-multipoint" interface. This type of interface can be viewed as a collection of point-to-point links that share a single termination point.
To uniquely identify an exact link in a point-to-multipoint interface, the MGM API uses the next hop address of the interface ID. To support this identification, the MGM API uses an extended interface ID, which includes a next hop address.
Do you want to know how to implement interfaces in AL? If so, this module will explain how to implement interfaces in AL for use with Microsoft Dynamics 365 Business Central.