[syslinux] Making tftpd (hpa) firewall frienldy

[Jeffrey Hutzelman]

--On Thursday, March 04, 2010 06:56:08 PM +0200 cgm mgc <999cgm at gmail.com> 
wrote:

> Hello all,
>
>  Tested on linux 2.6.18 (Centos5) and FreeBSD 7.0.
>
> You would execute it like below (which basically makes tftp reply back
> with same port is listening on )
> tftpd --port-range 69:69 -4 -s /tftpboot/

Did you test what happens if you compile with this option when you're _not_ 
trying to make all the traffic happen on the tftp port?  I'd expect it to 
break the port-selection algorithm some of the time.  For that matter, I 
would not expect the usage you describe to work well with multiple 
transfers going on at once.

If this is going to go in, I think it needs to be controlled by a runtime 
option.  A server that always had the behavior implemented by your patch 
would probably not be a good thing.

-- Jeff