/* HINT: Search archives @ http://www.indyramp.com/masq/ before posting! 
/* ALSO: Don't quote this header. It makes you look lame :-) */


>might the demasquerading fail because the masqueraded packets go to
>"nutmeg" but the reply packets to be demasqueraded come from "lmb"?
>i take it that they are separate ip addresses.

This seemed to be the root of the original problem. Things worked for
~24hrs, but now MASQ appears to be broken for some requests but not
others.

Sample from a correct NFS request (node24 is client, valm the gateway and
nutmeg the server)

11:50:29.966389 node24.biop.ox..248976013 > nutmeg.biop.ox..nfs: 632 write
[|nfs]
11:50:29.966409 valm.biop.ox.ac.248976013 > nutmeg.biop.ox..nfs: 632 write
[|nfs]
11:50:29.968266 nutmeg.biop.ox..nfs > valm.biop.ox.ac.248976013: reply ok
96 write [|nfs] (DF)
11:50:29.968277 nutmeg.biop.ox..nfs > node24.biop.ox..248976013: reply ok
96 write [|nfs] (DF)


However, below is a sample dump for a non-responding client; replies from
the NFS server are getting sent back to the wrong client. (node4 rather
than node10)


11:50:27.780608 node10.biop.ox..2366641037 > nutmeg.biop.ox..nfs: 1472
write [|nfs] (frag 29157:1480@0+)
11:50:27.780730 valm.biop.ox.ac.2366641037 > nutmeg.biop.ox..nfs: 1472
write [|nfs] (frag 29157:1480@0+)

11:50:27.784068 nutmeg.biop.ox..nfs > valm.biop.ox.ac.2366641037: reply ok
28 write [|nfs]
11:50:27.784087 nutmeg.biop.ox..nfs > node4.biop.ox.a.2366641037: reply ok
28

I have noticed that the packets from non-responding clients are being
fragmented. Is this a problem, and if so, is there any way of correcting
it?


Regards,

Guy Coates




----------------------------------------------------------------
                 --A fool and his money are soon venture capital.

   E-mail: [EMAIL PROTECTED]
   Tel   : +44 (0)1865 275390 (W)  +44 (0)7801 710224 (M)
   Mail  : Laboratory of Molecular Biophysics,
           University of Oxford,
           Rex Richards Building, South Parks Road,
           Oxford, OX1 3QU

_______________________________________________
Masq maillist  -  [EMAIL PROTECTED]
Admin requests can be handled at http://www.indyramp.com/masq-list/ -- 
THIS INCLUDES UNSUBSCRIBING!
or email to [EMAIL PROTECTED]

PLEASE read the HOWTO and search the archives before posting.
You can start your search at http://www.indyramp.com/masq/
Please keep general linux/unix/pc/internet questions off the list.

Reply via email to