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Re: RÃf. : Re: [ECOS] Problem with TCP/IP stack
- From: Gary Thomas <gary at mlbassoc dot com>
- To: Lopy <lpz at laposte dot net>
- Cc: eCos Discussion <ecos-discuss at ecos dot sourceware dot org>
- Date: Thu, 10 Jan 2008 06:35:55 -0700
- Subject: [ECOS] Re: RÃf. : Re: [ECOS] Problem with TCP/IP stack
- References: <19742966.42231199971885201.JavaMail.www@wwinf8204>
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 Ãcrit : -----
Pour : Antoine Zen-Ruffinen <antoine.zen@gmail.com>
De : Gary Thomas <gary@mlbassoc.com>
Envoyà 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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