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Re: Independent network for each ethernet adapter

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On 4 fev, 12:26, gerotica <pgerot...@gmail.com> wrote:
> On 4 fev, 06:06, Ulrich Eckhardt <ulrich.eckha...@dominolaser.com>
> wrote:
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> > 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.
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> > 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.

By the way...  I managed to solve this problem using Virtual PC. The
secret is to have a virtual machine for each ethernet controller you
want to use and disable, at the host os, all protocols installed for
that controller.

Thanks a lot.

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Re: Independent network for each ethernet adapter gerotica <pgerotica@gmail.com> - 2011-02-04 10:33 -0800
  Re: Independent network for each ethernet adapter Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-02-07 09:08 +0100

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