How does Broadband connect ?

Hi,

A mate is having trouble with connecting to the net through his Router. I've
set my own up so said I will go round and see if I can spot anything. Just
refreshing my memory looking through my own settings and realised that you
don't actually put your ISP's IP address into the router. The only info that
seems to be ISP specific is the Username / Password. So how does the Router
contact the ISP initially to obtain a dynamic IP. Sorry if this is a very
stupid question.

Thanks in advance,

Graham.

In article <dienah$sqh$(E-Mail Removed)>, Graham says...
> Hi,
>
> A mate is having trouble with connecting to the net through his Router. I've
> set my own up so said I will go round and see if I can spot anything. Just
> refreshing my memory looking through my own settings and realised that you
> don't actually put your ISP's IP address into the router. The only info that
> seems to be ISP specific is the Username / Password. So how does the Router
> contact the ISP initially to obtain a dynamic IP. Sorry if this is a very
> stupid question.
>
Each physical ADSL line is in effect "mapped" to an ISP. It works the
same as a dial up connection in this respect without the dialling bit.


--
Conor

"You're not married, you haven't got a girlfriend and you've never seen
Star Trek? Good Lord!" - Patrick Stewart, Extras.

On Mon, 10 Oct 2005 22:41:09 +0100, "Graham"
<(E-Mail Removed)> wrote:

>The only info that
>seems to be ISP specific is the Username / Password. So how does the Router
>contact the ISP initially to obtain a dynamic IP. Sorry if this is a very
>stupid question.

PPP negotiation allocates the IP address and other stuff like DNS
servers. Same as on dialup.

Phil
--

Usenet spam eaten by a Hamster http://www.tglsoft.de/
No more cable clowns :-))
Please do not feed or re-quote the trolls.

"Conor" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) t...
> In article <dienah$sqh$(E-Mail Removed)>, Graham says...
> > Hi,
> >
> > A mate is having trouble with connecting to the net through his Router.
I've
> > set my own up so said I will go round and see if I can spot anything.
Just
> > refreshing my memory looking through my own settings and realised that
you
> > don't actually put your ISP's IP address into the router. The only info
that
> > seems to be ISP specific is the Username / Password. So how does the
Router
> > contact the ISP initially to obtain a dynamic IP. Sorry if this is a
very
> > stupid question.
> >
> Each physical ADSL line is in effect "mapped" to an ISP. It works the
> same as a dial up connection in this respect without the dialling bit.
>
>
> --
> Conor
>
> "You're not married, you haven't got a girlfriend and you've never seen
> Star Trek? Good Lord!" - Patrick Stewart, Extras.

Thanks for the quick replies lads, saved me a lot of headscratching. When
you say that the ADSL line is "mapped" to an ISP :

1 Does this mean that you couldn't connect to someone elses ISP with their
Username / Password from your own line.

2. When you change ISP's does a physical adjustment need to be made in a
telephone exchange or something.

Thanks again,

Graham.

On Mon, 10 Oct 2005 23:54:12 +0100, "Graham"
<(E-Mail Removed)> scrawled:

>1 Does this mean that you couldn't connect to someone elses ISP with their
>Username / Password from your own line.
>
Correct.

>2. When you change ISP's does a physical adjustment need to be made in a
>telephone exchange or something.
>
No. It's a software mapping. It can be altered remotely by someone in
Liverpool.
--
Stuart @ SJW Electrical

Please Reply to group

In article <dierju$i9h$(E-Mail Removed)>, Graham says...

> Thanks for the quick replies lads, saved me a lot of headscratching. When
> you say that the ADSL line is "mapped" to an ISP :
>
> 1 Does this mean that you couldn't connect to someone elses ISP with their
> Username / Password from your own line.
>
Yes. It even goes as far, on Kingston Comms at least, that you can't
connect to the same ISP with your user/pass on someone elses line.

> 2. When you change ISP's does a physical adjustment need to be made in a
> telephone exchange or something.
>
No. Press buttons on a computer.


--
Conor

"You're not married, you haven't got a girlfriend and you've never seen
Star Trek? Good Lord!" - Patrick Stewart, Extras.