pls help for ipfw

Lowell Gilbert freebsd-questions-local at be-well.ilk.org
Wed Sep 21 14:02:00 PDT 2005


Charles Swiger <cswiger at mac.com> writes:

> On Sep 21, 2005, at 4:20 PM, ann kok wrote:
> > my rules:
> >
> > ipfw add allow udp from any to tftpserverip
> > ipfw add allow udp from tftpserverip to any
> >
> > In the freebsd box, I can access tftp server but
> > internal users is hanging in the "get" state
> 
> TFTP may also use TCP:
> 
> % grep tftp /etc/services
> tftp             69/udp     # Trivial File Transfer
> tftp             69/tcp     # Trivial File Transfer

Except that it doesn't.  The port is reserved to avoid confusion, but
the TFTP protocol doesn't run on TCP.

NAT is probably hanging things up.  I think that all that's needed is
to "add-state" on the outgoing TFTP rule.

-- 
Lowell Gilbert, embedded/networking software engineer, Boston area
		http://be-well.ilk.org/~lowell/


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