On Sep 24, 4:18, Ilya Konstantinov wrote:
} Subject: Re: Actcom without a dailer costs more
> On ×', 2005-09-22 at 10:41 +0300, Nadav Har'El wrote:
> > The strange thing is that for some reason, getting this sort of dialer-less
> > setup required fighting with the cable company.
>
> Actually, for the reasons already specified, it's the ISPs who are
> actually not interested in those deals: it complicates abuse tracking
> and, more important, it makes applying the service package limitations
> more difficult -- they either need to ask the cable company to notify
> them of any subscription upgrade/downgrade requested by the user, or do
> IP-based traffic shaping (rather than interface-based).
>
> With IP-based traffic shaping, what if you acquire all the 3 IPs (Max
> CPE limit) you're allowed to? Will they let you full bandwidth for each
> of the computers (assuming you inflated your cables subscription and
> didn't notify them)?
I didn't mention it in my original answer. But the use of dialer is
needed by the ISPs not only for traffic tracking. Without a dialer,
when we get an abuse report on an IP (say a spam, virus, hack or fraud
report) we DON'T have a way to locate the user! If we block the IP, the
user eventually gets a new IP and our blocking is useless. Moreover -
some other user eventually gets the blocked IP and calls for support...
Regarding speed limit, this is not a main issue with Cable connection
due to a procedure between HOT and the ISPs of mutual updates. However,
as someone mentioned, with a direct connection (without a dialer) in
principle the user can bypass the speed limitation in the modem and
the ISP cannot prevent and even cannot detect that. Limitation per IP
cannot be done because without a dialer the user gets a random IP which
the ISP doesn't know (and also the user can get up to 3 IPs).
We are going to start a project to solve this problem. The idea is
that users without a dialer will get authenticated according to their
MAC address (we will have to get the DHCP records from HOT in real time).
This will allow us to track the traffic and to shape the speed, without
a need for L2TP or PPTP termination (this project is done on Linux, of
course), and eventually connect all of our Cable users without a dialer.
Amir
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