RE: [RadiusNT] Re: RadiusNT Digest

Nathan Haywood ( )
Thu, 14 Oct 1999 13:44:53 -0400

A little off-topic, I know, but for those of you who need to monitor
customer traffic with dedicated/non-dialup accounts, take a look at:

It would work best if each customer is assigned to a certain port on
your NAS, but this is what we use to monitor traffic patterns on all our
routers here.

-----Original Message-----
[]On Behalf Of Edsonet
Sent: Thursday, October 14, 1999 1:39 PM
Subject: [RadiusNT] Re: RadiusNT Digest

I don't know of any good way of stopping this, because as far as your
system is concerned, the traffic is coming from one single IP address.
could monitor a suspected abuse using a network monitor, but that is
labour intensive. On dial-up accounts, you can implement inactivity
timeouts, maximum session timeouts, and total useage limits. For
we have the following implemented:

inactivity timeout - 30 minutes
maximum session timeout - 5 hours
maximum useage - 50 hrs/week

The most useful one, and the one that an abuser will probably run afoul
is the maximum useage. We offer unlimited access, but we took care to
define unlimited access as being distinct from unlimited time. It was
an easy decision and one that we laboured long and hard with before
implementing. It reduced the number of abusers from over 3% to less than

Since we now offer High Speed Internet options that do not require a
dial-up connection (wireless & DSL), the problem has moved from one to
other. These dedicated connections can very quickly consume your
bandwidth. For these services we have imposed a maximum 5 GB/Month
Customers who subscribe and pay for a LAN connection get this limit
adjusted upwards. Measuring that useage is a different problem. Both the
wireless and DSL systems support SNMP, and we are currently working on a
Manager program that will periodically poll all the connections and log
a database.

J.A. Coutts
Systems Engineer
**************** REPLY SEPARATER ******************
At 09:13 AM 10/14/1999 -0700, you wrote:
>Subject: [RadiusNT] utilization
>From: "Emad Hazza" <>
>Date: Thu, 14 Oct 1999 12:58:18 +0200
>Any idea on how to counter the over utilization of dialup users for the
>link. The problem is that we sell a dialup unlimited hours plan, on the
>bases that it is to be used by on user, but what some users do is that
>they use their account to connect multiple users on a lan, which means
>that more than 5 users will be using the link at the same time through
a =
>proxy server, this puts an extra load on our bandwidth.

For more information about this list (including removal) go to:

For more information about this list (including removal) go to: