[Biot Olivier <Olivier.Biot@xxxxxxxxxxx>]

Hi,

Are you referring to M$ FrontPage extensions or to WebDAV for *uploading*
resources to an HTTP server in the Internet? Maybe the problem is either
that the server does not support the protocol you're using, or that the
protocol you're testing with has bugs you want to be able to view and
resolve. Note that many ISPs today only support FTP (often only in PASSIVE
mode) for uploading web content to the web server.

If you want to use Ethereal, then try capturing only the relevant traffic.
For instance 'tcp port 80' (without enclosing quotes) is a valid libpcap
packet capture filter. Once you captured the transaction you're testing,
click on "stop" to quit capturing, and inspect the data packets. The
simplest is to type 'http' (without enclosing quotes) as a *display* filter
which will only display the packets for which the HTTP dissector was called.
Then inspect what's wrong. Are you seeing an error at TCP level (no HTTP
traffic) or at the HTTP level (take a look at the format of the HTTP
messages you send to and receive from the server).

You could select one packet and then right-click and choose "Follow TCP
stream" in order to visually see the exact content which was exchanged
between client and server.

Hope this helps!

Regards,

Olivier

|-----Original Message-----
|From: y.l
|
|
|Well I didn't say I was a total newbie either....
|I'm a software programmer with network basics, I said I'm not 
|a specialist
|which means I don't have advanced network skills!
|But this is not the point and this is not a web browser issue either.
|The problem comes from a Win32 software trying to http upload to
|www.distributedfolding.org:80 via the LAN and through my 
|Gateway/Firewall
|FreeBSD.
|Actually this software can apparently download from this server but not
|upload, the technical service on site told me they checked up 
|everything's
|working fine on their side, so I decided to sniff frames on my LAN....
|But I don't know how to use Ethereal....
|Is that more specific ?
|Can anyone tell me shortly the procedure ? and filters I should use?
|
|Thx
|
|----- Original Message ----- 
|From: David Bremer
|
|
|> I don't mean to be harsh - but if this program is too 
|complex then I'm
|> afraid you won't understand what it will tell you is wrong. 
|If you don't
|> understand what a carburetor is then how will you know what to do if
|> your car diagnostic system tells you that the carburetor is faulty?
|>
|> First step (IE your problem)
|> a) If you can browse other external web sites but not the one you are
|> after then chances are your PC and firewall aren't the 
|problem and it's
|> a remote issue - beyond your control.
|>
|> b) if you can't browse anywhere outside your net then check that your
|> IP address and subnet mask is correct, check that your 
|gateway address
|> is correct and that your DNS is correct
|>
|> Step two
|> Get some skills
|> There are tutorials out there on the basic use of ethereal - but the
|> require some basic knowledge of networking. I think that learning
|> networking via learning ethereal is a great combination - 
|but some prior
|> knowledge is necessary.
|>
|> I suggest you consider either the CompTia network+ course or CCNA
|>
|> Sorry - I don't mean to criticize, but there is no way that someone
|> without background network knowledge can use ethereal, or any other
|> network diagnostic tool.
|>
|> For ethereal you could start here
|> 
|http://www.virtualciscolab.com/training/etherea|l/ethereal800_vi
|ewlet.html
|> There's theFAQ http://www.ethereal.com/faq.html
|>
|> For networking - you might prefer the introductory courses 
|mentioned or
|> turn to a book - one free to download (which may be too in depth for
|> you) is this TCP/IP Tutorial and Technical Overview
|>
|http://publib-b.boulder.ibm.com/redbooks.nsf/RedbookAbstracts/g
|g243376.html?Open
|>
|>
|>
|> Regards
|> Dave
|>
|>
|>
|> >>> skyover [at] hotmail.com 15/06/04 01:56:06 >>>
|> Hi,
|>
|> I would like to use ethereal to see why a network client software I'm
|> using is unable to reach an http:80 server outside of the LAN.
|> But this tool is a bit too complex for a non network specialist like
|> me!
|> Can anyone help me?
|>
|> Just for information I have a gateway/firewall but no proxy here.
|>
|> Thanks.
|>
|> razor.