At 10:15 PM +0100 12/08/2005, Peter Udbjørg wrote:
Before embarking on reinstalling anything...
Please describe your network setup more completely.
Its the other way around. Its DSL Router ->
4-port Ethernet hub -> various macs.
There's a crossed Etherntet cable between router
& hub, and regular cables between hub and macs.
I have had up to three computers on it at one
time, but ususally no more than two. It very
well handles two macs surfing simualtaneously
and doing file sharing (one mac having access to
the others shared folder, and v/v). My DSL
provider has no qualms about that.
And you have NAT enabled on the router?
IF you have exceeded the number of computers
authorized by your ISP, then their DHCP server
probably won't even talk to you... It might be
possible to make the modem forget how many
other computers it has seen by power-cycling it.
Possible, but then I usually unhook one computer
and hook on the new. Hooking the old back again
poses no problem.
Not possible, if you're using NAT. In that case,
the ISP has no clue as to how many client
computers you have connected - which is good.
While you're at it, verify that your ethernet
interfaces are working. Turn off AppleTalk.
Turn on TCP/IP. Give yourself an address like
192.168.100.100. Close the control panel.
Look at the lights on the ethernet switch --
make sure the appropriate Link light for that
Mac is on. If it isn't, then you have an
interface or cabling problem.
The light on the hub indicating contact (link)
shines up, and the light on the Asanté ethernet
card shifts, indicating that there is some sort
of contact.
Good. That means the physical link layer is probably working.
Now turn on AppleTalk and File Sharing - make sure they work.
But in TCP/IP I do not get neither subnet mask
nor IP address. I use DHCP setup, letting the
host provide the numbers. All my other macs
(except the 8600 I fried) have had IP addresses
of the type 10.0.0.X. This 9600 does not have an
IP address at all.
Then you're having a DHCP failure. Make sure the
DHCP server set-up in the router is appropriate
-- permitting allocation of enough IPs, etc.
Check its log to see what's happening.
Now, is that piece of information somehow
hardwired? As mentioned earlier, it appears to
follow the harddisk with the current system on.
The information is cached on the HD. The DHCP
client, built-into Open Transport, uses that
cached information to "preload" the DHCP Lease
Request. It should not be a problem tho... when
the DHCP Request is issued, the DHCP server notes
that the MAC (ethernet) address is different, so
it ignores the requested IP and issues a new one.
That's IF the DHCP process is working correctly.
If I wipe the system totally, and re-install, is
it likely that I'll rediscover an IP address in
the 9600?
No. The problem is NOT the OS. "Wiping" and
"re-installing" is something you should do if you
had a PC. You don't. You have a Mac. Think
Different.
Go into your Preferences folder. Locate the
"Open Transport Preferences" folder, if there is
one. Trash it and empty the trash. That's where
most of OT's cache is stored. (Your actual
TCP/IP control panel settings are in "TCP/IP
Preferences"; make sure you don't trash that yet!)
Open the TCP/IP control panel. Set it to
advanced/admin. Create a new config and assign
yourself a hard IP and hostmask, in the range
that your router will talk to. Then use a tool
like IPNetMonitor or WhatRoute to ping yourself
and your router -- to verify that you have IP
connectivity. If you put in an appropriate DNS
address (such as 4.2.2.1) then you should be able
to translate names and perhaps surf the web.
Once you have that working, go back to trying to get DHCP to work...
Download and install IPNetMonitor from Sustworks.
http://www.sustworks.com/
Use IPNetMonitor's log window and DHCP Test
function to see if you can get a response from
your router...
HTH,
- Dan.
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