* [ECOS] Re: Réf. : Re: [ECOS] Problem with TCP/IP stack
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@ 2008-01-10 13:36 ` Gary Thomas
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From: Gary Thomas @ 2008-01-10 13:36 UTC (permalink / raw)
To: Lopy; +Cc: eCos Discussion
Note: this reply belongs on the eCos discussion list, not me personally.
Lopy wrote:
> Hi,
>
>
>
> We have experimented this kind of problem, but only with MultiCast, or
> with big packets, but I don't think that is the same problem than you
> ask for.
>
>
>
> A/ If the DHCP server don't give the opt 3 (GATEWAY), it's not possible
> to send MultiCast packets. But there is no problem for sending unicast
> packet.
As the original message did not mention multicast, I doubt this is relevant.
> B/ We have another problem (bypassed but not fixed), who is than big
> packets ( who need to be fragmented ) are not send. But we think that is
> a driver problem, so if you don't have the same microprocessor perhaps
> you don't have the same problem.
>
>
>
> We work with MPC8270 on a own designed board.
Can you elaborate on your problems? Are you using the FCC driver
code which is in the public eCos repository?
> -----ecos-discuss-owner@ecos.sourceware.org a écrit : -----
>
> Pour : Antoine Zen-Ruffinen <antoine.zen@gmail.com>
> De : Gary Thomas <gary@mlbassoc.com>
> Envoyé par : ecos-discuss-owner@ecos.sourceware.org
> Date : 10/01/2008 14:17
> cc : ecos-discuss@ecos.sourceware.org
> Objet : Re: [ECOS] Problem with TCP/IP stack
>
> Antoine Zen-Ruffinen wrote:
> > Hi List folks,
> >
> > I've a problem with the TCP/IP stack:
> > - I use TFTP to load my program in redboot. That work fine.
> > - My application start, call init_all_network_interfaces(), it do the
> > DHCP stuff. That work fine.
> > - Then I open a socket and try to send / receive data. No packet
> is even send.
> >
> > Does someone has already seen such problem ?
> > Any idea ?
>
> We'll need more data than this in order to help.
> * What's the target platform?
> * How did you configure eCos for your failing application?
> * Have you run any of the standard eCos network test programs?
> * How do you know nothing was sent? What sort of debugging
> have you tried so far?
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
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