high speed DSL connectivity

[Teodor Iliescu]

On Mon, 15 Sep 2003, James Knott wrote:

> You're a bit confused.  While IP address from RAS or other dial up 
> access appear dynamic, they don't use dhcp.  Normally, a phone line is 
> assigned it's own IP and whatever computer connects to that line, gets 
> that IP.  If there are multiple lines, there will be mulitple IP 
> addresses, and whichever address you get, depends on what line you 
> connect to.  From the user point of view, the addresses are dynamic (not 
> dhcp), but from the ISP point of view, they're static.  On the other 
> hand, dhcp is used on ethernet, token ring or other multiple access 
> networks, to assign IP addresses, on an as needed basis.  A dial up line 
> has no need of a dhcp server and using one wouldn't help an ISP.

How would a client get a static IP, if when he connects, he gets a
different line? This is, assuming the client paid for the static IP, and 
the ISP set him up.

Whouldn't there be an entry at the DHCP server, specifying a reservation 
for that client?

If you say the IPs are statically set on the phone lines, then how would
the ISP hand out dynamic information to the RAS clients, if say one of
their DNS servers goes down? Options such as default gateway, primary and
secondary DNS are scope options set at the DHCP server.

An article, that relates to this:
http://www.winnetmag.com/Articles/Index.cfm?ArticleID=5413

Does anybody else have some input on this?

--
Teodor I.
http://penguincomputing.iwarp.com
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