If your not real familiar with Ethernet at the stack level have a pro do this for you. If
you want to try it yourself here is a web link to get you started. What you need is a Linux
based custom router that sits beside you Linux application.
http://www.slideshare.net/networksguy/home-networking-in-linux-iptables-firewall-routing
--------------------------------------------
On Sat, 11/2/13, Jonathan Leslie <> wrote:
Subject: Re: [ts-7000] ts-7800 how do I make 4 (at least 2) identical network stacks?
To: "" <>
Date: Saturday, November 2, 2013, 6:48 AM
Walter, thank you for
your suggestions, do you have a link/explanation to
some of these? (aka IPTables, "do raw Ethernet
(like a sniffer does) and Nat route them "on the
box" by interface." )If I go over 4 devices on my tail
wagging the dog network, I agree, I will need a router, but
for now I only have to deal with 3 devices, and space is
paramount.
I
believe when you talk are talking about raw ethernet, you
are referring to something like
this:http://www.tenouk.com/Module41a.html
I
actually have done a project already like that with 2
devices, but it was on a WinSystems epx-380 board with a QNX
OS. It had the ability to make 2 network stacks and 2 SOCK
settings. I'm also exploring how I can expand that
board to 4 SOCK settings. However, I want to switch to
embedded arm processors: I'm in love with the TS
product line, and its 1/3 the size and price of the epx-380
board.
the
bottom line is the smaller I can put this together, the
better I'll be positioned to sell it. The customer has a
size in mind, and I want to come in at half that.
From: Walter Marvin
<>
To:
Sent: Friday,
November 1, 2013 8:48 PM
Subject: Re:
[ts-7000] ts-7800 how do I make 4 (at least 2) identical
network stacks?
Even better,
You can use IPTables to masquerade by interface , I think
--------------------------------------------
On Fri, 11/1/13, Jonathan Leslie <>
wrote:
Subject: Re: [ts-7000] ts-7800 how do I make 4 (at least 2)
identical network stacks?
To: ""
<>
Date: Friday, November 1, 2013, 5:32 PM
Yes Walter, that was
my suggestion as well: a dedicated router per setup, but
I've also got a space problem, and was hoping to be
able
to do the whole thing on the one board. I've
got
to fit this in a tight spot under the dash of a
vehicle.
From: Walter Marvin
<>
To:
Sent: Friday,
November 1, 2013 7:58 PM
Subject: Re:
[ts-7000] ts-7800 how do I make 4 (at least 2) identical
network stacks?
The easiest way is to add an external router. Nat
route two of the boxes into different IP addresses, then
take the other one native on the second Ethernet
interface.
Theoretically you could do any number of of boxes, if
you
provide enough cheap Nat routers
thanks
Walter
--------------------------------------------
On Fri, 11/1/13, Paul Breneman
<> wrote:
Subject: Re: [ts-7000] ts-7800 how do I make 4 (at least
2)
identical network stacks?
To:
Date: Friday, November 1, 2013, 11:38 AM
On 11/01/2013 12:18 PM,
wrote:
> I have a customer that produces a device where
inside
it is a network of several devices all with IP
addresses
that cannot be changed (for example 10.1.1.101,
10.1.1.102,
10.1.1.103, and 10.1.1.104 are in the product) and you
plug
your PC into this device, set your address to
10.1.1.xxx
(something not between 101-104) and off you go. My
customer
wants me to be able to put 3 of these onto a single
deployment but I'm not allowed to change any IP
addresses.
>
>
> I was hoping to to put these three into the
Ts-7800
and have unique Network stacks for each of them where
one
network doesn't know about the other ones. In
this
way
I can be running three independent 10.1.1 networks say
on
eth0,eth1, and eth2. On the 4th network, eth3,
(again
another 10.1.1 network) I could write a C program to
accept
a message for say 10.1.1.101, and check a digital
switch/dip switch bank selector for which of the 3
outbound
10.1.1 (eth0, eth1, eth2) is to receive the packet.
>
>
> Does anybody have any idea how I would set up
such
a
configuration??? I see in the documentation for the
ts-7800
they talk about eth0 and eth1, can I at least set up 2
independent 10.1.1 networks on the same ts-7800???
Here is a simple serial and socket terminal program
that
might help you
troubleshoot things: www.CtrlTerm.com
Please let me know if there are problems or questions.