Re: Image download BOOTME

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From: Leif O (leif_nospam_at_vmetro.no)
Date: 12/15/04 

Date: Wed, 15 Dec 2004 08:39:35 +0100

I think the BOOTME packets are broadcast, not multi-cast. UDP broadcast
packets are, at least by default, not passed on through routers. The host
PC and the device to boot must therefore be on the same subnet for the
host PC (and Platform Builder) to be able to receive the BOOTME requests.

Regards,
Leif O.

On Tue, 14 Dec 2004 13:42:56 -0500, Michael Schaffner, P.E.
<mschaffner@applieddata_NOSPAM.net> wrote:

> I am not sure of the exact answer to your question, but I am responding
> in
> hopes that some more knowledgeable member of this newsgroup will augment
> and
> clarify my line of reasoning.
>
> I think the reason your host (PC) can see the target (device) is because
> the
> BOTTME message is multicast. But once that is done, the next step is to
> download the image via TFTP. Is that protocol routable? If not, that is
> the
> problem. If so, then how does the target route info to the host and
> vice-versa without a gateway (router). Can a default gateway be
> specified in
> the boot loader or does it assume the standard default (x.x.x.1)? I don't
> know. But that may be your problem.
>
> Microsoft suggest keeping them (PC & device) on the same subnet. I would
> say
> from experience with other prototype hardware with network capability,
> that
> is good advice...
> 

-- 
leif AT vmetro DOT no
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

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