Re: (Revisiting) Using airport- doesn't anyone know?


Subject: Re: (Revisiting) Using airport- doesn't anyone know?
From: William K. Gibson (firstdesk@columbus.rr.com)
Date: Mon Jun 25 2001 - 07:45:15 MDT


on 6/21/01 6:27 PM, Brice D Ruth at brice@webprojkt.com wrote:

OK, here's where I am so far (not that this will really help you, its mainly
an FYI)

I'm running the LinuxPPC default 2.2.18-4hpmac kernel, with the included
airport module (by Ben) that creates an airport device (airport-0.9.3). I
insmod the airport.o module and use the iwconfig application provided by
wireless-tools <http://www.fasta.fh-dortmund.de/users/andy/wvlan/> . I
believe I did something like so:

/sbin/iwconfig airport essid "webprojkt" rate 5.5M

I'm curious, why did you set your rate to 5.5 instead of the standard 11?

Running /sbin/iwconfig again showed me that the AirPort card had indeed
found the base station (yay!). Next up was getting an IP address - this
ended up being simple enough, I simply ran /sbin/dhcpcd -d airport and it
came back almost immediately with a valid address and configured my DNS and
all (yay!).

I should mention that I am not using DHCP on the base station. I'm connected
to a cable modem via DHCP, and using DHCP from the base station does not
work. I have made a lan on 10.0.1.x instead with the Base station acting as
a router over ethernet and air. Oh, I'm also using encryption so I have to
give the airport module the encryption number- or whatever its called that I
cannot remember right this moment.

netdev: tap0

Then I pretty much to the letter followed the instructions for setting up a
tapdevice found here:

http://www.turbolinux.com/~brad/mol/#net

I have a few issues with this web page. One is here

> # echo "1" > /proc/sys/net/ipv4/conf/tap0/proxy_arp
> # /sbin/arp -s 192.168.0.2 FE:FD:00:00:00:00 pub

He says to make an arp entry manually- but simply using tap0 will
automatically produce an entry in the arp table- so I don't think that is
nessesary.

I simply used 192.168.1.1 as my tap0 device address and changed everything
appropriately for that. I started up MOL and it booted my MacOS 9.1 system
just fine - went into my TCP/IP settings and continued to follow the
instructions listed above. I then loaded up Mozilla (0.9.1 if you must know
:)) and checked out slashdot.org - according to Mozilla, the page finished
loading after 35.545 seconds. Checking out interactive8.webprojkt.com (a
site that I own, so I know that the server won't be bogged down or anything)
loaded in about 4.864 seconds. Going to the same site via my laptop (also
wireless) loaded in 5.513 seconds.

The slowness I experienced was not so much with a web browser but in
downloading email. The log in and subsequent downloading of email (from MS
outrage express) would take many many minutes for simply one 2K message. I
do not experience this behavior in MOL when using the ethernet cable
connected to the base station. Try your email program and see what results
you get.

Oh, that makes me wonder. I wonder if there is a subsequent slow down in
email on the linux side when using airport? I'll have to check.

--William K. Gibson
1stDesk Systems
firstdesk@columbus.rr.com



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