Re: Which floppy drive
On Mon, Dec 18, 2000 at 01:28:21PM +0100, Andreas Tille wrote:
> On Mon, 18 Dec 2000, Andreas Jaehnigen wrote:
>
> > > Hmm, my box seems not to find the tftp image. It just repeats:
> > > Timeout waiting for ARP/RARP packet
> >
> > Is your ARP server up and running? This message is typically generated due
> What is an "ARP server".
An ARP request is an ethernet broadcast that basically says: "I've IP
number a.b.c.d, now what is the hardware ethernet addres for this
machine so I can talk to it using ethernet unicasts?" The machine with
IP number a.b.c.d responds by sending back a message to identify
itself.
A RARP server does the opposite: a machine (your Sun) knows its
ethernet hardware address, so it sends out a RARP request to ask for
its corresponding IP number. If the RARP server knows about it, it
sends back a message to tell the host.
What's going wrong in your case is that the RARP server isn't properly
setup, or that the RARP server isn't configured at all.
> I followed the instructions in the SPARC install manual topic 6.5.3.
> My problem is: How does the sun find the server. How does it search the
> net for such kind of server. How can I tell the IP of the tftp server?
By getting the RARP server up.
To see what's going on, log on to a third machine, and start tcpdump:
tcpdump -e -l -vv ether host <sun hardware address> or \
ether host <rarp server hardware address>
You should see messages like: "who-has bla", "I have bla".
Erik
--
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands
Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/
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