On Mon, 24 Nov 2008, John Musbach wrote:
I'm interested in figuring out how dialup ISPs work and have found plenty of info on dialin server setup but not much on how ISPs allow multiple clients under one access number, how do they do it?
That depends on what you mean by multiple clients. If you mean multiple customers of a single ISP, you would provision serveral PRIs through a telco, and assign a phone number that will hunt down through all of PRIs to find an open port. If you mean multiple clients in the sense that you're a dial wholesaler and you're providing service to multiple ISPs, you'd still do hunt groups as mentioned by other posters, plus you could also assign each wholesale client a unique RADIUS domain to allow for client-specific attributes to be applied to dialin sessions. For example, this could be used to control the IP addresses that are assigned a given ISP's customers. jms