rec.autos.simulators

> >>>Also, why does it -demand- to have a live internet connection
> >>>before it will run AT ALL? What is it doing?

> >>It's client-server all the way. It sends data to the host, which is
> >>localhost, 127.0.0.1. If your machine then responds with trying to
> >>hook a live connection, that's your network's setup that could be
> >>better.
> >>For local pings (or even local network pings, like 192.168.x.x in most
> >>environments), no outside call should be generated.

> >Ruud, is it really necessary to attempt a winsock conection
> >when doing single-player hotlapping?

> Yes, all communication takes place over UDP connections, as the design
> is client/server. Exactly like Quake3 for example; there you also
> connect to yourself.
> The reason for this is that it then makes no difference if the car is
> on the network, or local. Besides, with the loopback device (lo0) as
> all network computers have, a UDP packet for localhost should never
> leave the computer anyway; in other words, the packet won't be
> physically put to the ethernet card. It just takes a round trip in the
> network driver.

> The reason Racer seemed to ping out is probably because it took a full
> IP address (67.something.x.y) and that was not seen by the network as
> something local, so it sent it across another route (instead of lo0),
> which then triggers dial-up.

> It's really nothing unusual actually; all Quakes did it this way, and
> in the Unix world, you'll see lots and lots of services sending
> packets to their local network route. I might need some more intricate
> hostname detection scheme.

> Did you try 'ping 67.x.y.z' (your own IP), see what that did?

> Ruud van Gaal
> Free car sim: http://www.racesimcentral.net/
> Pencil art  : http://www.racesimcentral.net/

>/Carl

>> >>>Also, why does it -demand- to have a live internet connection
>> >>>before it will run AT ALL? What is it doing?

>> >>It's client-server all the way. It sends data to the host, which is
>> >>localhost, 127.0.0.1. If your machine then responds with trying to
>> >>hook a live connection, that's your network's setup that could be
>> >>better.
>> >>For local pings (or even local network pings, like 192.168.x.x in most
>> >>environments), no outside call should be generated.

>> >Ruud, is it really necessary to attempt a winsock conection
>> >when doing single-player hotlapping?

>> Yes, all communication takes place over UDP connections, as the design
>> is client/server. Exactly like Quake3 for example; there you also
>> connect to yourself.
>> The reason for this is that it then makes no difference if the car is
>> on the network, or local. Besides, with the loopback device (lo0) as
>> all network computers have, a UDP packet for localhost should never
>> leave the computer anyway; in other words, the packet won't be
>> physically put to the ethernet card. It just takes a round trip in the
>> network driver.

>> The reason Racer seemed to ping out is probably because it took a full
>> IP address (67.something.x.y) and that was not seen by the network as
>> something local, so it sent it across another route (instead of lo0),
>> which then triggers dial-up.

>> It's really nothing unusual actually; all Quakes did it this way, and
>> in the Unix world, you'll see lots and lots of services sending
>> packets to their local network route. I might need some more intricate
>> hostname detection scheme.

>> Did you try 'ping 67.x.y.z' (your own IP), see what that did?

>> Ruud van Gaal
>> Free car sim: http://www.racer.nl/
>> Pencil art  : http://www.marketgraph.nl/gallery/

> >A small note,
> >If you don't have any network-card in your PC, and only use modem, you
can
> >probably solve the problem by installing the "Microsoft Loop-Back
Adapter"
> >as hardware.
> >It's just a virtual networkcard that makes the PC able to use networking
> >with itself.
> >Just do the normal add-new-hardware procedure and "select manually from a
> >list".
> >Then choose "Network adapters" as type, and in the list of items
presented,
> >you choose Microsoft | LoopBack Adapter.

> >/Carl

> Carl, who would want to do all of that just to do
> single-player hotlapping? Not me .. :)

> >> >>>Also, why does it -demand- to have a live internet connection
> >> >>>before it will run AT ALL? What is it doing?

> >> >>It's client-server all the way. It sends data to the host, which is
> >> >>localhost, 127.0.0.1. If your machine then responds with trying to
> >> >>hook a live connection, that's your network's setup that could be
> >> >>better.
> >> >>For local pings (or even local network pings, like 192.168.x.x in
most
> >> >>environments), no outside call should be generated.

> >> >Ruud, is it really necessary to attempt a winsock conection
> >> >when doing single-player hotlapping?

> >> Yes, all communication takes place over UDP connections, as the design
> >> is client/server. Exactly like Quake3 for example; there you also
> >> connect to yourself.
> >> The reason for this is that it then makes no difference if the car is
> >> on the network, or local. Besides, with the loopback device (lo0) as
> >> all network computers have, a UDP packet for localhost should never
> >> leave the computer anyway; in other words, the packet won't be
> >> physically put to the ethernet card. It just takes a round trip in the
> >> network driver.

> >> The reason Racer seemed to ping out is probably because it took a full
> >> IP address (67.something.x.y) and that was not seen by the network as
> >> something local, so it sent it across another route (instead of lo0),
> >> which then triggers dial-up.

> >> It's really nothing unusual actually; all Quakes did it this way, and
> >> in the Unix world, you'll see lots and lots of services sending
> >> packets to their local network route. I might need some more intricate
> >> hostname detection scheme.

> >> Did you try 'ping 67.x.y.z' (your own IP), see what that did?

> >> Ruud van Gaal
> >> Free car sim: http://www.racer.nl/
> >> Pencil art  : http://www.marketgraph.nl/gallery/

>I was just trying to be helpful :-)

>Some comercial apps require a NIC. SQL Server for instance. That's why there
>is a possibility to emulate a NIC in certain special environments where
>there currently are no NIC.