Hi Marko and others,
On Thu, Aug 30, 2012 at 06:24:58PM +0200, Marko Vojinovic wrote:
Let me guess --- on other outlets you get a real IP, 137.138.*.*, right? And
that works as expected?
Yes, exactly.
> > >To add to this, when other laptops
> > >connect to my wall outlet, they work properly.
Is the MAC address of your laptop registered with the CERN admins?
Yes, my MAC address is registered with CERN[1].
In plain english, your machine first asks the server 137.138.16.6 for
an IP
assignment (DHCPREQUEST). The server refuses (DHCPNAK). Then your machine asks
which dhcp servers are out there (DHCPDISCOVER), and asks anyone for an IP
assignment (DHCPREQUEST). Three servers respond: 137.138.16.6 and 137.138.17.6
refuse (DHCPNAK), while 192.168.0.1 accepts (DHCPACK) and gives you an
internal IP, which doesn't seem to be able to access the outside world.
I did ask for help, but apparently we ran into a dead end. However
later an admin got in touch with me personally, however it's night here
and he will probably continue tomorrow again.
I am not sure if this is a misconfiguration or implemented on
purpose, but the
CERN admins need to figure out why both of the two 137.138 dhcp servers have
refused to give you an IP. This is the problem on their end of the wall
outlet. Your machine seems to be configured correctly and also behaves
correctly.
As far as I know, I should get an external IP. So things like:
$ ssh user@<external IP>
works.
The guys at CERN usually know what they are doing, so the best bet
would be to
ask them for help, they should certainly be able to fix this.
There is no doubt they definitely know what they are doing very well,
the "official procedure" however is painfully slow[2].
Footnotes:
[1] And yes, I do work at CERN.
[2] Today is the 3rd day since I reported my issue.
--
Suvayu
Open source is the future. It sets us free.