[U-Boot] [PATCH 0/4] Network defrag

[Robin Getz]

On Mon 10 Aug 2009 15:57, Ben Warren pondered:
> Robin Getz wrote:
> > Thanks to Alessandro for putting it together.
> >
> > Feel free to add my Signed-off (once the docs have been updated
> > explaining what this is all for).
> >
> >   
> I'll do that.  Thanks for all your help.

Some info for the docs, when I was troubleshooting a Ubuntu 9.04 install.
======

It appears that some tftp servers (the older BSD version, Debian's "tftpd") 
doesn't support RFC 2348 (blksize), and always use a block size of 512 :( You 
need to make sure that you install the the Peter Anvin version, which does 
support  RFC 2348, and blksize up to 65,464 bytes (Debian's "tftpd-hpa").
http://www.kernel.org/pub/software/network/tftp/

How to tell which you have? Check your man page: "man tftpd" or ask for the 
version:

Peter Anvin version:
rgetz at imhotep:~> /usr/sbin/in.tftpd -V
tftp-hpa 0.48, with remap, with tcpwrappers
rgetz at imhotep:~>

non-RFC 2348 one:
rgetz at imhotep:~> /usr/sbin/in.tftpd -V
rgetz at imhotep:~>

Even when using the Peter Anvin version, block size can still be reduced via 
two methods:
 -B : limits the maximum permitted block size (-B 512)
 -r : rejects RFC 2347 TFTP options (-r blksize)
Check your local /etc/xinetd.d/tftp or /etc/inetd.conf file to see how your 
tftpd server is being invoked.

===========

-Robin