Want to contribute by writing a tutorial on module helpers.

[Daniel Shane]

Hi,

I am trying to do TFTP over NAT and it seems that I might need to write an
ip_contrack_tftp module. Here is the problem :

TFTP does not respond on its dedicatd port (which is 69), but rather on a
new unknown port. Therefore, the connection tracking will not work if I
understand correctly. Now since TFTP is a pretty strait forward protocol, I
though that this would be a good time to write a simple example/tutorial
that could be added to the HOWTO/FAQ of netfilter. But before doing this, I
wanted to be sure that this is the only way to make TFTP work. Has anyone
already made a TFTP helper module or I am the first one that needs it?

It might also need a bit of code review once it works, since I plan to make
this a tutorial on writing helper modules.

Is this a good idea?
Daniel Shane