Re: Independent network for each ethernet adapter

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From	gerotica <pgerotica@gmail.com>
Newsgroups	comp.os.ms-windows.programmer.misc
Subject	Re: Independent network for each ethernet adapter
Date	Fri, 4 Feb 2011 06:26:41 -0800 (PST)
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On 4 fev, 06:06, Ulrich Eckhardt <ulrich.eckha...@dominolaser.com>
wrote:
> gerotica wrote:
> > I have several brand new network routers I need to update firmware via
> > telnet. [...] several ethernet cards on one pc and be able to connect
> > one router to each one of them. Of course, the main problem is that
> > those routers come with the same default ip address and subnet mask.
> > Is there anyway to do this? Connect several routers with same ip to
> > the pc, and still be able to communicate to each one?
>
> Generally, no, you can't have one machine with several network cards on the
> same IP address. Things to try:
> 0. Install virtual machines and connect each of them to a real ethernet
> card. This is just a vague idea, I'm not even sure if this works and is
> supported, let alone by which machine.
> 1. If you configure your ethernet cards to have consecutive numbers in the
> same subnet that the routers are by default. You could then bind() your
> outgoing connection to exactly that ethernet address instead of letting the
> IP-stack pick one for you. Of course, you can't use telnet that way (unless
> it allows such things, which I doubt for the MS-supplied one) but would
> have to write the TCP transfer code yourself.
>
> Good luck!
>
> Uli
>
> --
> Domino Laser GmbH
> Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932

Thanks Uli for your ideas. That´s exactly the ways I imagined to do
the job. I have been trying to configure Virtual PC to do it, still
unsucessful.
Binding to the IP, I´ve already did that, but in my understanding, I
can just "hear" what´s going on the wire right? I can´t bind and
manipulate the data being sent or received on that IP, am I wrong?

Anyway, thanks for your ideas. Having another person thinking that way
makes me feel like I am on the right path.

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Thread

Re: Independent network for each ethernet adapter Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-02-04 09:06 +0100
  Re: Independent network for each ethernet adapter gerotica <pgerotica@gmail.com> - 2011-02-04 06:26 -0800

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