This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

RE: HELP Unable to ping the device


On Wed, 2005-03-02 at 17:05 +0530, Mukund JB. wrote:
> Hello Gary,
> 
> The network problem at redboot persists.
> 
> > > Hello all,
> > >
> > > Sorry, the previuus mailwas with a wrong subject.
> > 
> > Yup :-(
> > 
> > > I am working on cirrus logic BSP & using EBD19312 board. I am unable
> to
> > > ping the device.
> > >
> > > I am able to see the redboot prompt on my minicom. As I don't have a
> > > BOOTP on my network(cross cabled), I have configured the IP using
> > > ip_address command of redboot.
> > >
> > > The steps I followed are
> > > 1) Connected to the host through cross cable (Host running tftp
> server).
> > > 2) D/W the Redboot using serial cable.
> > > 3) executed the following command successfully
> > > 	fis init -f
> > > 	fconfig -i
> > > 	ip_address -l 100.100.100.43 -h 100.100.100.13 ( NO DHCPd/
> > > BOOTp)
> > >
> > > After that, when I ping to HOST(100.100.100.13), it returns TIMED
> OUT.
> > >
> > > I am using a Intel 82557/8/9 ( cat/proc/pci entry shown card). I am
> not
> > > able to guess the problem.
> > 
> > How did you configure the port on your host computer?
> 
> Baud rate = 57600 8N1
> Hardware Flow control = NO
> Serial device 	    = dev/ttyS0

We need to know how you configured the network card in your host?
Have you tested the network using that card?

> 
> > Have you tried any debugging techniques?
> >   * Turn on network debug in RedBoot (requires reboot to become
> effective)
> 
> Sorry, I did not do that. How do I turn on the network debug in redboot?
> However, I get some message when I start the board after the redboot is
> loaded.

Have you read the manual?  Try the 'fconfig' command

> 
> >   * Watch the "wire" from Linux (ethereal or tcpdump)
> I watched it. I watched through ethereal what are the packets that the
> device is sending after installing redboot & restarting it.
> It is sending nothing. 
> 
> I am less into ethereal stuff. I just doubt, Is the ethereal capable of
> capturing the bootp request patkets on the network. Just becos the
> fields on the ethereal display are
> 
> 	Time	  Source	destination	  xxx	  xx
> 
> & if the board is sending some BOOTP packets how will the ethereal
> display them on the screen. I just doubt as there is no IP assigned yet
> to the board we are using.

'ethereal' can see and display any network traffic that your host
computer can see.  It will be able to display BOOTP packets, as
well as any other packets exchanged between your target and host.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]