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 From:  "Hugo Hamel" <hhamel at privalodc dot com>
 To:  "'Mitch (WebCob)'" <mitch at webcob dot com>, "hugo hamel" <hhamel at privalodc dot com>
 Cc:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE : [m0n0wall] Re: ATM WAS RE: [m0n0wall] RE : [m0n0wall] Traffic Shaping issue
 Date:  Wed, 28 Jul 2004 08:05:32 -0400
Unfortunately, I do not agree. I build similar network for Sprint. ISP
never use ATM because of the cost of the equipement needed. Your ISP is
bridging your service so it is cheaper for him but it is not standard.

Hugo 

-----Message d'origine-----
De : Mitch (WebCob) [mailto:mitch at webcob dot com] 


Cc : m0n0wall at lists dot m0n0 dot ch
Objet : RE: [m0n0wall] Re: ATM WAS RE: [m0n0wall] RE : [m0n0wall]
Traffic Shaping issue


Hmmm not quite... ;-)

> -----Original Message-----
> From: hhamel at privalodc dot com [mailto:hhamel at privalodc dot com]
> Sent: Tuesday, July 27, 2004 2:36 PM
> To: Mitch (WebCob)
> Cc: Hugo Hamel; m0n0wall at lists dot m0n0 dot ch
> Subject: [m0n0wall] Re: ATM WAS RE: [m0n0wall] RE : [m0n0wall] Traffic

> Shaping issue
>
>
> Your ISP is buying Bandwith from a carrier. This is an ATM circuit 
> connecting back to the carrier. This is a layer 2 conection (OSI 
> model). It is connected to his router for the layer 3 connection. You 
> are connecting to his DSLAM (equipement that provides you your DSL 
> connection) this is a layer 2 connection (most of the time, this is a 
> PPoE connection)

Ok, we aren't using PPoE, it is a "bridged" connection - their word, not
mine, but I simply configure an ethernet device for the assigned IP and
go. It is a public routable IP, but to provide a better example:

Network: xxx.113.195.0/25
ISP Router: xxx.113.195.1
Subscriber A: xxx.113.195.23
Subscriber B: xxx.113.195.24

At present, Subscriber A CAN NOT see subscriber B. I will be replacing
ISP router with my own, and want / need to change that. The reason
being, IPSec tunnels from Subscriber A to subscriber B are not possible
with FreeBSD (I am looking at openvpn as an alternative).

> /32 subnetting is mostly use for point to point connection between 2 
> sites using private line or frame relay.

Essentially this is what I have. The way the ATM is used to transport
the data, it acts as a private line. The ISP router expects the clients
to be able to communicate directly (as they are on the same subnet) so
it does NOT route (not even sure FreeBSD CAN route on the same
interface).

Thanks for the comments - does this make my problem clearer?

Thanks!

m/


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