Re: WAN with DSL

From: Guillaume Rischard (sfocus@stereo.lu)
Date: 08/26/01 

Message-Id: <200108261947.VAA00042@calais.pt.lu>
Date: Sun, 26 Aug 2001 21:49:40 +0200
From: Guillaume Rischard <sfocus@stereo.lu>
Subject: Re: WAN with DSL
To: "bill h." <bill@haederer.com>, "Renato Martins" <renato@e-cronos.com.br>

This is incorrect. I've setup vpns between dsl modems with dynamic
ips and they're doing fine, thank you very much.

  All you need is a script that will periodically check whether the
connection is up (I send a small ping to my ISP's gateway every
second) and if it is down, restart the connection and update
dyndns. On the VPN client side you have to add the same kind of
tests for the VPN link. The routers will route the different
subnets between them and you won't have to change the configuration
of the user machines.

  I can provide the unix shell script I use to keep my home dsl
connection up and update my dyndns account when it reconnects if
someone is interested. If you're going for unix routers, I would
highly recommend rp-pppoe (http://www.roaringpenguin.com/pppoe) for
the dsl connection and vtun for the VPN
(http://vtun.sourceforge.net)

Hope this helps :)

Cheers,

Guillaume

On Sunday, August 26, 2001, at 09:16 PM, bill h. wrote:

> That implentation will not work for you mainly due to dynamic ips,
> vpn will
> require static ip's, check with your local dsl provider as
> business accounts
> can many times obtain static ips.
>
> Bill Haederer
> Admin
> WeHaveYourSolution.com
>
> ----- Original Message -----
> From: "Renato Martins" <renato@e-cronos.com.br>
> To: <security-basics@securityfocus.com>
> Sent: Sunday, August 26, 2001 1:05 PM
> Subject: WAN with DSL
>
>
>> I need to interconnect three branches of a company. I'm planning
>> to do it
>> using DSL modems, because of their price and availability.
>>
>> The system will be running almost purely on Windows. The idea is
>> to have a
>> gateawy in each branches LAN, with the DSL modem. It would
>> connect to the
>> Internet, and give access to the corporate data that is in the
>> main office
>> (which would also be connected through DSL modem).
>> As the IP assignment is dynamic, I plan to use a service such as
>> Dynamic
> DNS
>> (www.dyndns.org).
>>
>> I guess this is what may be called a VPN.
>> What are the security measures that should be taken?
>> Is the approach a good one (bearing in mind the price / benefit)?
>> Does anyone know about some white papers, technical articles on this
> matter?
>> I've heard VPNs are secure and not hard to implement, even in
>> Windows. Is
>> there a "roadmap" for setting this up?
>>
>> Any help would be appreciated.
>>
>> Tanks in advance,
>> Renato
>>
>>
>
>
>

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