[ECOS] Re: Réf. : Re: [ECOS] Problem with TCP/IP stack

[Gary Thomas <gary@mlbassoc.com>]

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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