Cards seeming connect but unable to route traffic?

[Denis Vlasenko]

On Thursday 06 May 2004 05:07, Drew Dowling wrote:
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> Thanks for the suggestion,
>
> > use tcpdump to find out whether packets actually
> > arrive to either end.
> >
> > (I don't know how I lived much of my life without tcpdump :)
> > --
> > vda
>
> Unfortunately my client is an XP box, so unless there is a tcpdump that I
> don't know about there I can only do this at one end.
>
> # tcpdump -i wlan0
> tcpdump: listening on wlan0
>
> Then I start a ping to the clint and see
>
> 22:01:01.357911 arp who-has 192.168.2.3 tell 192.168.2.1
> 22:01:02.357084 arp who-has 192.168.2.3 tell 192.168.2.1

Look whether packet count on XP box grows or not
(we are interested whether it sees these ARPs).

Also there are tcpdump-like utils for Windows.
--
vda