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RE: ISP
- To: <linux-il(at-nospam)cs.huji.ac.il>
- Subject: RE: ISP
- From: "Haim Gelfenbeyn" <rnews(at-nospam)hageltech.com>
- Date: Wed, 23 May 2001 13:27:21 +0300
- Importance: Normal
- In-Reply-To: <20010523113456.A25979@leeor.math.technion.ac.il>
- Organization: Hagel Technologies
- Reply-To: <haim(at-nospam)hageltech.com>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
>
> Several people have already mentioned ISPs liking or not
> liking masquarading.
> What does that mean? They have no way of finding out (and
> should not be
> interested) on whether you're connecting one machine to the
> Internet, two
> machines in your home (using one machine as the gateway doing
> masquarading)
> or a dozen machines. You get a specific allowance of
> bandwidth, and you
> can do with it what you want. Some people have one machine
> connected to
> ADSL and download Linux distributions or listen to online
> music all day,
> and other people connect 3 machines with very light email and
> occasional
> surfing load.
>
> Do the ISPs actually care (I mean, is it in their contract)
> whether you do
> the former or the latter? How come?
>
As far as I understand, what ISPs are trying to prevent is businesses
connecting their networks via ADSL, instead of using much more pricey
Frame Relay or other connections offered by ISPs. While for example
Barak is offering 2 mbps incoming traffic (and indeed I get 1-1.5 mbps
from some US sites sometimes :-)), I fully understand that they count on
the fact that most users don't download that much data most of the time,
otherwise their links would be saturated and would drive their traffic
costs into stratosphere. To protect themselves from such events, all
ISPs have clauses that state that they can disconnect users at will,
without any advance warning and without explanation. So whether NAT is
mentioned in their contract or not is irrelevant.
I personally called Barak tech. support and asked about four things:
1. NAT
2. Linux support
3. Offering services on my linux box to outside world.
4. Static IP.
The (unofficial) answers I got are:
1. Not supported, OK for home users.
2. Not supported, works ok.
3. No traffic is blocked, so all my ports are open to the world
4. Barak does not offer static IPs for ADSL users at all.
Here, "not supported" means "support won't know how to asnwer questions
about it".
Haim.
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