Re: RRAS demand dial interface

As Philip said, you can ignore the internal interface. That is only used
if you configure your server for incoming VPN or dialup users.

It should be possible to do what you are aiming at, but it doesn't
really seem worth the effort. If you are running the server as a DC I would
definitely say don't try to use it as a router. Buy a separate NAT device as
Philip suggested and keep your server with a LAN NIC only.

If it is not a DC you could run it as a NAT router, although it is not a
great idea. After you have set up your demand-dial interface, you need to
run the static route wizard and configure it so that the default route is
linked to the demand-dial interface. (That is you put 0.0.0.0 in the
Destination and Network mask boxes and select the dd interface from the
dropdown list. Tick the box to use this route to initiate dialout
connections). You then configure NAT to use this interface as the public
interface and the LAN NIC as the private interface.

Dial on demand works, but the first connection attempt often fails
because the request times out before the connection is made. Also, the first
request is often a DNS query using UDP, and only TCP will trigger dial on
demand.

<johnsolver@xxxxxxxxx> wrote in message
news:1185400041.608279.76720@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jul 25, 10:48 pm, "Phillip Windell" <philwind...@xxxxxxxxxxx>
wrote:
<johnsol...@xxxxxxxxx> wrote in message

news:1185395532.596978.100910@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I'm sorry, there is something I don't get, if I remove the interface
how will it connect to the internet (provider, password etc.?)

The WAN nic.

But I can't specify a password on a nic

clarify, I have an internal (small) network and I connect to an ISP
(using PPTP cable modem),

There is no such thing. PPTP is Point to Point Tunneling Protocol used
to
establish a VPN connection.

Yes, my ISP is a cable company that uses the cables infrastructure to
supply broadband. They gave me a modem, which usually works by
specifying a VPN connection in windows by using the PPTP protocol. I
was/am trying to do something similar with RRAS and NAT it so the rest
of the network can use the same connection.

Looking at the interfaces the RRAS created, there are: DDI, LAN (card
to the internal network), WAN (card to the modem), Loopback and some
interface called Internal which RRAS created automatically.

The one called "internal" does not count. The LAN, WAN, and DDI count as
three interfaces.

That is what I gathered.

from all that I've read I'm supposed to create a DDI to the ISP and NAT
it.

They probably mean it is a Broadband connection using PPPoE. PPPoE is a
type of "dialup" technology and pretty much isn't worth a crap. It is
really a "home user" thing and is intended for a single machine in the
house
to use the internet connection. It is used by ISP's that at too cheap to
own
enough public IP#s for all their customers, and since PPPoE works similar
to
the Dialup/DHCP combination, they are gambling that not all their
customers
will be active at the same time which may cause them to run out of IP#s.

If that is what you have then buy a broadband "router" like something
from
Linksys, Netgear, D-Link. Those are designed with PPPoE functionality
built
in and will handle those types of connections better.

The best thing is to get rid of that type of lousey internet service, but
it
just depends on what is available in your area.

Yes I know about PPPoE, but as I said above my connection is through a
VPN. I've read somewhere that it's possible to supply an always on
connection with VPN, that's not the case with my provider, ie. I have
to dial out, supply a user name and password to connect.

Hopefully I'm clear enough, could you give a basic outline of how I
should configure my RRAS given the above constrains?

Many Thanks.



.

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