On Mon, 9 Nov 2009, Manfredi, Albert E wrote:
Does not the ISP control, own, and distribute the "residential gateway"?
Not in my market anyway (some have this service of course, but it's definitely not mandatory).
Why would ISP not own and control the residential gateway?
Because it's cheaper to have the customer walk into their electronics store and buy any CPE they fancy, than to have the ISP handle it. It also gives customers more choice. In some markets, people like to have the choice between ISP provided CPE and one they run themselves.
We received our ADSL "modem" in the mail, from Verizon. It is a NAT, and the WAN side is under their control entirely. Is this not standard practice among ISPs?
As far as I can discern, it's standard in the US but not in the rest of the world. Generally, the more competition in the market, the less likely it is that the ISP provides the end user CPE. If customers switch ISPs every year or so, they want to be able to re-use their CPE.
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