OpenVPN on local network

hello all
(sorry for the english)
is it possible to setup OpenVPN on a local network (ie workgroup),
not connected to Internet, between 2 WindowsXP ?
the purpose is to learn and test the product,
for ex to copy files between the 2 PC's, using VPN or not
if it's possible, which are the parameters (TUN, TAP, @IP, ...)?
thnx a lot in advance
Bernard, from Paris

bonsoir tous,
est-ce que qq'un a réussi à installer OpenVPN
entre 2 XP, en voisinage reseau, et avant tout est-ce possible ?
c pour faire un pti test avec ou sans vpn, par ex. des copies de
fichiers, entre 2xPC's voisins (1 seule carte reseau sur chacun);
je patauge dans les nombreux parametres et certifs,
merci d'avance pour une soluce,
cordialement

On Sun, 18 Dec 2005 13:42:05 +0100, bpdu92 <(E-Mail Removed)> wrote:

>hello all
>(sorry for the english)

Better than my French Bernard :-)))

>is it possible to setup OpenVPN on a local network (ie workgroup),
>not connected to Internet, between 2 WindowsXP ?

Not sure how you would make the connection as if both machines are on
the local network to start with then I don't think you would be able
to make another - I may be wrong though.

What I tend to do to test is use a dial up connection on one computer
and then use VPN to connect to a newtork; only cost is the dialup
charge.

I appreciate you would not then be in a position to test large file
transfers but I set up a folder containing only small files for this
purpose, if they work the big ones will also.

It is difficult testing a VPN if you have got no-one to test it with.

Geoff Lane

On Sun, 18 Dec 2005 16:43:43 +0000, Geoff Lane
<(E-Mail Removed)> wrote:

>On Sun, 18 Dec 2005 13:42:05 +0100, bpdu92 <(E-Mail Removed)> wrote:
>
>>hello all
>>(sorry for the english)
>
>Better than my French Bernard :-)))
>
>>is it possible to setup OpenVPN on a local network (ie workgroup),
>>not connected to Internet, between 2 WindowsXP ?
>
>Not sure how you would make the connection as if both machines are on
>the local network to start with then I don't think you would be able
>to make another - I may be wrong though.
>
>What I tend to do to test is use a dial up connection on one computer
>and then use VPN to connect to a newtork; only cost is the dialup
>charge.
>
>I appreciate you would not then be in a position to test large file
>transfers but I set up a folder containing only small files for this
>purpose, if they work the big ones will also.
>
>It is difficult testing a VPN if you have got no-one to test it with.
>
>Geoff Lane
thnx for your quick answer, Geoff
I understand that you think a third PC is necessary to test ?
is it possible to avoid dial up, and instead use an ethernet
connection, with a second board on the receiving PC, acting
as a gateway only ?
is the network schema below relevant ?
--------------| | -----------| |-----
file server |--local network--| vpn server |---------| vpn client
--------------| |------------| |----
are TUN and TAP both possible ?
thnx in advance

>>On Sun, 18 Dec 2005 13:42:05 +0100, bpdu92 <(E-Mail Removed)> wrote:

>>>is it possible to setup OpenVPN on a local network (ie workgroup),
>>>not connected to Internet, between 2 WindowsXP ?
>>
>>Not sure how you would make the connection as if both machines are on
>>the local network to start with then I don't think you would be able
>>to make another - I may be wrong though.

>I understand that you think a third PC is necessary to test ?

Don't really need three - two would do.

>is it possible to avoid dial up, and instead use an ethernet
>connection, with a second board on the receiving PC, acting
>as a gateway only ?

Not sure if that would work, problem with trying to use VPN on what is
already a local network is that I don't know how you would confirm if
it is working or not.

>is the network schema below relevant ?
>--------------| | -----------| |-----
> file server |--local network--| vpn server |---------| vpn client

That looks OK

>--------------| |------------| |----
>are TUN and TAP both possible ?

Not sure what TUN and TAP are :-((

Geoff Lane

On Mon, 19 Dec 2005 19:22:00 +0000, Geoff Lane
<(E-Mail Removed)> wrote:

>
>>>On Sun, 18 Dec 2005 13:42:05 +0100, bpdu92 <(E-Mail Removed)> wrote:
>
>>>>is it possible to setup OpenVPN on a local network (ie workgroup),
>>>>not connected to Internet, between 2 WindowsXP ?
>>>
>>>Not sure how you would make the connection as if both machines are on
>>>the local network to start with then I don't think you would be able
>>>to make another - I may be wrong though.
>
>>I understand that you think a third PC is necessary to test ?
>
>Don't really need three - two would do.
ok for 2, but below you say my schema with 3 looks ok ?
>
>>is it possible to avoid dial up, and instead use an ethernet
>>connection, with a second board on the receiving PC, acting
>>as a gateway only ?
>
>Not sure if that would work, problem with trying to use VPN on what is
>already a local network is that I don't know how you would confirm if
>it is working or not.
using an analyzer on the line (on the hub),
which will certify the data is crypted or not
>
>>is the network schema below relevant ?
>>--------------| | -----------| |-----
>> file server |--local network--| vpn server |---------| vpn client
>
>That looks OK
thnx, but may I avoid the 3rd PC ?
(vpn trafic -ie file transfer- between vpn client and vpn server)
>
>>--------------| |------------| |----
>>are TUN and TAP both possible ?
>
>Not sure what TUN and TAP are :-((
explained...nearly on openvpn.net
>
>Geoff Lane

On Mon, 19 Dec 2005 21:31:36 +0100, bpdu92 <(E-Mail Removed)> wrote:

>On Mon, 19 Dec 2005 19:22:00 +0000, Geoff Lane
><(E-Mail Removed)> wrote:

>>>is it possible to avoid dial up, and instead use an ethernet
>>>connection, with a second board on the receiving PC, acting
>>>as a gateway only ?

Let us know how you get on..

Geoff Lane