So I got this working on my older Nokia 3120, then got an E52 and then had to go through all of this again. So I decided that’s that, I need a reference. Posted here because it’s least likely to go away, and easiest place to find it again. Also, other people may find this useful.
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Archive for the ‘Networking’ Category
Linux, 3G, bluetooth and DUN
Wednesday, January 20th, 2010
ibdriver and the 2.6.31 kernel (iBurst Linux drivers)
Saturday, October 31st, 2009So in the 2.6.31 kernel the older (deprecated) network API finally got removed – biting quite a number of people rather badly. I can think of at two projects that’s problematic due to this:
1. The ibdriver package – used for the iBurst usb and pcmcia devices.
2. The dahdi 2.0.x drivers used for telephony in Asterisk.
The latter isn’t that serious a problem as I really need to move to dahdi-2.2.x anyway, the ibdriver however caused me some embarrasment as I plugged in the usb device, downloaded the drivers and … it didn’t compile. Oops. So I decided it’s time to return to some of my older roots and just make the driver work – and that’s exactly what I did.
ARP Spoofing – a lost art? Maybe not.
Sunday, May 10th, 2009Just over a month back we had an incident where the default gateway on our servers would just sporadically stop responding, we first observed this as our servers sporadically just stopping to respond and only once we realized we could log on to other servers and during these “outages” we could still communicate with our servers via our other servers (ie, we could access them from the local LAN but not anywhere else) did we start pointing fingers at the gateway. (more…)
The correlation between network traffic, tea and lunch times
Saturday, March 28th, 2009So I could for a long time now spot public holidays, weekends, and general stuff on network graphs, but never did I suspect I’d be able to detemine lunch and tea times based on network traffic graphs! Anyway, check this one out:
VoIP Traffic Graph
One can clearly see the 10:00 tea time, then lunch at 13:00 and tea again at 15:00 before things start quieting down for the weekend at around 16:30. Surprisingly there is still a decent amount of activity for a saturday 
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