On Wed, Sep 11, 2002 at 11:26:01AM -0500, Andy Isaacson wrote: > Is there anyone on moos at nerp.net that isn't on tcwug-list, and wants to > continue to be included in these discussions? If not, I suppose the > alias can go away. > Yeah, I wanted the extra attention to this post. > This is all very interesting, but a radio friend of mine made a good > point when I was discussing the Moos Event with him. > > In general, the AP is going to have a better transmit side than the NIC; > it has more power to work with, a better antenna system, etc. > Conversely, the NIC probably has lower transmit power and a lesser > antenna. > > Furthermore, an AP on Moos is going to be barraged with noise, since it > has LOS to just about every radio source in Hennepin and Ramsey > counties, while the NIC can hear the AP and any other radiators in its > immediate vicinity, but not much else. > Actually moos-6 was a 12db antenna on what I believe was a 100mw output cisco AP, I was using a 15db antenna (yes, on my truck) with a 100mw cisco PC card, i'd say they were about equal =) Of course, this is an unusual setup, but I'm really not concerned with tower->ground connectivity at this point. (This is what sector antennas are good for) > These points suggest that we should do more than just running Kismet to > test connectivity between Moos and a mobile station. Kismet is a > fabulous tool, but it explicitly does NOT test the host-to-AP side of > the connection (please correct me if I'm wrong in this claim). We > should also find out how well mobile nodes can associate with the AP, > and do some round-trip tests, to ensure that the radio round-trip is > usable. I associated in multiple locations to make sure the signal readings weren't false, in most locations the signal was _very_ good, it was simply a matter of getting out from behind houses/trees/etc. > > I don't know of any pointy-clicky tools that make this easy, but I'm > sure we can whip something up if need be. > > Does anybody out there have any experience doing this kind of > connectivity testing? If so, are you willing to share your experience > with the group? > swap to another VT, kismet_unmonitor (leave kismet running, but take the card out of monitor mode) iwconfig eth0 essid moos6 dhcpcd eth0 ping <gateway> (mmkay, we have signal houston) kismet_monitor drive off. > [Aside: The NIC has one potential significant advantage over the AP -- > the NIC can use a directional antenna, while (in our current > configuration) the AP must use an omni.] > > -andy -- Matthew S. Hallacy FUBAR, LART, BOFH Certified http://www.poptix.net GPG public key 0x01938203