<p>Methods to connect to the Internet and SaaS Platforms</p>
The simplest way for an enterprise to connect to the internet is by directly engaging with a local Internet Service Provider (ISP).
An ISP provides the enterprise with one or multiple IP addresses from its own address pool, based on the enterprise's requirements. The ISP will then take care of the onward routing of the enterprise to its SaaS and cloud applications.
Some enterprises with extensive networks require more advanced capabilities. To achieve this, they need to obtain their own Autonomous System (AS) Number. This defines a network and all related devices and is obtained from the local internet registry (RIPE, ARIN, APNIC, AFRINIC). It is essential for leveraging the benefits of the Border Gateway Protocol (BGP), which manages routing on the public internet.
In this scenario, the enterprise uses its own IP addresses and peers with multiple IP Transit Providers (also called multi-homing).
