[OLPC Networking] networking not working to machine 2 or server

[Krishna Sankar (ksankar)]

Couple of thought, nothing of current help (as I do not have the OLPCs)

Two things, I can think of, that would help debugging in these cases :

A)	A tool showing the connectivity, devices it sees, signal
strength et al. Do we have such a tool in OLPC ?
B)	Capture wireless packets in monitor mode

Both need to be customized for the OLPC world, showing 802.11s packets
semantics as well as aggregate what they mean. May be we already have
these.

Also, we might need an independent sniffer to debug the packets,
topology and the security artifacts. These will be more useful where we
have 100s of OLPCs and need to troubleshoot connectivity issues.

BTW, to debug connectivity, we need at least 3.

Cheers
<k/>

-----Original Message-----
From: networking-bounces at laptop.org
[mailto:networking-bounces at laptop.org] On Behalf Of Andrew Harrington
Sent: Sunday, May 20, 2007 7:44 PM
To: networking at laptop.org
Subject: [OLPC Networking] networking not working to machine 2 or server

My networking is not working well at all.
Ivan sent me two B2 machines at the beginning of May to take with me
when I visit West Africa next month.  I just upgraded them to build 406.
My experience with networking is similar before and after the new build.
On one machine I got nothing, then in the wide neighborhood view, I
clicked on the default server and the mesh network, and later I could
get to the internet, presumably through my default wireless server, the
only unencrypted one visible.  Later when I restarted that machine I
could not get any connectivity, and I have not been able to get
connectivity on the other machine, except under the previous build
(385) I briefly saw the other machine's icon, but only briefly before I
lost it.

Thanks,

--
  Andrew N. Harrington
  Computer Science Department      Director of Academic Programs
  Loyola University Chicago        http://www.cs.luc.edu/~anh
  512B Lewis Towers (office)       Phone: 312-915-7999
  Snail mail to Lewis Towers 416   Fax:    312-915-7998
  820 North Michigan Avenue        gdp at cs.luc.edu for graduate admin
  Chicago, Illinois 60611          upd at cs.luc.edu for undergrad admin
                                   aharrin at luc.edu as professor

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