Re: DSL NAT and VPN
- From: "Stefano Peduzzi" <Stefano.Peduzzi@xxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Tue, 11 Jun 2002 18:47:33 +0200
Yes you are right (from what I've found): I don't have a technical
explanation for that anyway.
Stefano
----- Original Message -----
From: "David Durán" <dduran@xxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Tuesday, June 11, 2002 6:41 PM
Subject: [isalist] Re: DSL NAT and VPN
> http://www.ISAserver.org
>
>
> Sorry for my english.
>
> I agree with you Stefano, but VPN will only works with pptp and not with
> L2TP(IPSec). Is that a correct exposition?
>
> david.
>
> -----Mensaje original-----
> De: Stefano Peduzzi [mailto:Stefano.Peduzzi@xxxxxxxxxxxxx]
> Enviado el: martes, 11 de junio de 2002 9:48
> Para: [ISAserver.org Discussion List]
> Asunto: [isalist] Re: DSL NAT and VPN
>
>
> http://www.ISAserver.org
>
>
> Hi Ami,
> I've an ADSL connection that is the same as your.. it take me some time
but
> finally it is working. What I've found out is that you must NAT both the
> pptp port (UDP & TCP) and the IP Protocol 47. This last one is the
problem:
> the only way if you use a CISCO ADSL router is to nat EVERYTHING (ie all
the
> traffic) to the ISA server. I did it and it worked!!!
>
> Stefano
>
>
>
>
> ----- Original Message -----
> From: "Amy Babinchak" <amy@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
> Sent: Monday, June 10, 2002 10:07 PM
> Subject: [isalist] DSL NAT and VPN
>
>
> > http://www.ISAserver.org
> >
> >
> >
> >
> > Amy Babinchak
> > Technology Consultant
> >
> >
> > I have a pretty typical small business setup. We have a DSL router that
> > is configured to assign the SBS server a NAT address of 192.168.1.100.
> > This is our "external" NIC. The internal NIC is 10.0.0.4.
> >
> > I am trying to allow client computers to connect to the server using
> > VPN. The owner is leaving on vacation on Wednesday for 3 weeks and just
> > informed me today that he wants to VPN in. Typical!
> >
> > My laptop gets an IP address of 192.168.1.112 mask 255.255.255.0 gateway
> > 192.168.1.112 from the router but I never get through to the internal
> > network. I can use terminal services from here but not VPN.
> >
> > What should I do? Do I need to stop the DSL router from assigning an IP
> > to the client? Do I need a valid public IP for the external NIC on the
> > ISA server?
> >
> > Amy
> >
> >
> >
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