ecos freebsd_stack

[Gary Thomas]

Note: this should really be on the discussion list and not "devel"

On Fri, 2005-03-04 at 02:09 -0800, Raghu wrote:
> Probed more on this issue and wanted to share the
> findings,The ARP request from IDXP425 is reaching the
> Host IP. 
> Host machine generates an ARP reply and sends it on
> the line, but this is never reaching the NPE drivers
> "npe_recv" function in "if_npe.c". May be because it
> dosent receive an interrupt, and is not running in a
> polled mode. 
> 
> Any clues if this driver is "interrupt" driven or
> "polled mode", and how does interrupt processing
> happens in ixp425 ??
> 

My guess is that the hardware address (sometimes called 'MAC')
on the ixp425 is not being set up properly.  ARP replies are
normally uni-addressed (sent to only the station requesting
them) and if the hardware address does not match, the IXP
won't see it.

> 
> > I enabled the "ICMPPRINTFS" in ip_icmp.c, but the
> > console does not print any messages releated to ICMP
> > activity. Where probably we should expect it to
> > construct a ICMP request packet and send, but this
> > the
> > "ping_test" program does by copying the ICMP header
> > information by type casting the
> > unsigned char pkt1[]. Why doesnt it get sent at the
> > stack level ??
> > --- Andrew Lunn <andrew@lunn.ch> wrote:
> > > What does the console show? Does it say anything
> > > about the ICMP
> > > message it is trying to send?

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