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Date:      Wed, 22 Oct 2003 03:51:58 -0400 (EDT)
From:      Anthony Volodkin <anthonyv@brainlink.com>
To:        yussef <yussef@claygirl.org>
Cc:        hackers@freebsd.org
Subject:   Re: wireless device cant go thru wap to nfs/smb server
Message-ID:  <20031022031645.S98405-100000@superior.local.non-standard.net>
In-Reply-To: <E1ACCY2-00013y-QR@claygirl.org>

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Hey,

You might consider doing some tests to see if you get packet loss to the
NFS/SMB server.  That seems to be the issue.  It would make sense that nfs
would act weird, as nfs doesnt like packet loss :) What is happening with
winamp seems logical as well, in this situation.

If it does indeed turn out to be packet loss, then i'd consider investing
in a real access point and plugging in with a crossover cable into an
ethernet interface on your router box. I assume that you currently use a
PCMCIA card+adapter.

-Anthony

On Tue, 21 Oct 2003, yussef wrote:

> I posted this to -mobile, but im gonna send it here in case anyone
> might have a better idea. thanks
>
> I have a fbsd 4.8 router which also acts as my wireless access point,
> bridging the wireless interface to the internal nic. on top of that, up
> until recently, it was my nfs/smb file server as well. Everything was
> working fine in this setup, so i had to go and change something, and
> create new problems;)
>
> I moved the file serving over to a newer box, that will be dedicated
> mainly just to NFS and SMB [depending on whether its a windows machine
> or NIX machine accessing it]. Computers on the network connected over
> ethernet are able to mount shares and manipulate the data on the shares
> just fine [copying files back and forth, listening to music, etc].
> When i try to mount an NFS or SMB share from a device connected
> wirelessly, im able to do this just fine. However, with NFS im unable to
> do much with the data. I can browse thru the data just fine [eg, viewing
> mp3s in xmms]. But as soon as i try to move data from the remote share
> to the local system, it seems to cause the share to just sorta hang. If
> i open up a term, and do a simple ls /share it the term becomes
> unresponsive. even ctrl+c doesnt save me. the only way ive figured out
> how to return the system to normal is a umount -f /share and this isnt
> the most elegant or proper solution.
> With SMB its a similar story. I after its mounted, i can brown the
> share. If i go to play a song thru xmms, it will play, but it will pause
> almost every second, tho it will continue playing [so i guess
> technically its more affective, at this point, than NFS].
> If i switch my wireless devices to a wired connection, then everything
> works fine. So it seems pretty clear its not an issue with the wireless
> devices themselves, but the means of connection.
> My assumption is because im going thru the router/wap to get to the
> fileserver, this is somehow mucking up the way NFS/SMB do things. But I
> have no idea exactly why its doing this, and even more importantly, no
> idea how to fix this problem, besides making the router/wap the
> fileserver again, or making the new fileserver the wap [and this might
> not even work, as i havent tried it yet]. and both of these solutions
> are far from ideal.
>
> thanks for the help.
> yussef
>
> update: since making the initial post to mobile, it's become more clear
> to me this probably isnt an issue with nfs/smb but something to do with
> the way bridging works. I've yet to have a look thru the code [and im
> no programmer], tho i plan to look thru, and see if anything catches my
> eye. in the mean time, i thought maybe someone else more in the know,
> might have an idea about a solution.
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