Subject: Re: (Revisiting) Using airport- doesn't anyone know?
From: Brice D Ruth (brice@webprojkt.com)
Date: Tue Jun 26 2001 - 15:11:40 MDT
So, is your AirPort connected directly to your cable modem? If so, I
think there may be some things wrong with your setup -
1) If your client computers (wireless) are not using DHCP, then you
shouldn't be distributing IP adresses via DHCP
2) Ethernet to AirPort bridging is also probably not what you're looking
for - this is only useful if the network on either side of the AirPort
is identical. If it isn't (e.g. cable modem = Internet on one side;
wireless = private network on the other side) then you don't want to bridge.
Some other things seem funky, but I need to check my AirPort Admin
utility before I say anything else.
Also - try disabling WEP and see if that miraculously does something for
you. What you described is exactly what I did to setup WEP (following
all the directions I could find), but no dice in the end.
And don't worry - you're not taking up too much of my time :) I enjoy
solving network problems, I'm a network engineer at heart, though a
software engineer by profession (makes more money :)).
Regards,
Brice Ruth
William K. Gibson wrote:
> on 6/25/01 3:45 PM, Brice D Ruth at brice@webprojkt.com wrote:
>
> I'm not entirely clear on what your network setup is like - your
> cable modem receives an IP address from your cable provider via
> DHCP, right? So you have the AirPort 'Internet' tab setup to use
> DHCP - then the 'Network' tab is setup to *not* give out
> addresses, right? So in doing so, you have NAT setup, so that
> your base station is 10.0.1.1 and your Powerbook is 10.0.1.x,
> right? Clear me up on this, just to make sure there's nothing
> funky going on there.
>
>
> Correct:
> I have checked "Distribute IP Addresses"
> Radio "Share Single IP Addresss (Using DHCP & NAT)"
> Checked "Ethernet Client computers also share a single IP address
> (using NAT)"
> Checked "Enable Airport to ethernet bridging"
>
>
> As for the encryption - I haven't had *any* success using WEP on
> my network unless I'm running exclusively MacOS. Don't *really*
> know why, I've read all the docs, input the WEP keys manually - I
> even got my laptop to the point that the WEP authentication
> worked, it was able to get an IP address from the AirPort base
> station, but then nothing really worked. Explain that! Very
> screwy - I create a closed network now (webprojkt) which I hope
> nobody in my apt. building will figure out :)
>
> I have no problem using WEP with linux boxes. But perhaps this is the
> issue with the slowdown? You get the network equivalent password from
> the BaseStation menu of the AirPort Admin Utility and then use that
> number to configure your interface. I set up the name of the airport
> device and the password (enc) in a init.d script called "airport"-
> like this:
>
> iwconfig eth1 essid "myairportname" enc "XXXXXXXXXX"
>
> where the XXX... represents the hexidecimal number given by the Base
> station.
>
> My current AirPort setup is actually pretty simple - I have a
> firewall that is hooked up to the cable modem via static IP which
> gives out IP addresses on 10.0.0.x via its second interface. The
> AirPort is setup to simply bridge - basically do nothing.
>
> Yeah - the arp stuff isn't necessary. I only did the first time,
> thereafter (when I rebooted my iMac) I forgot to do it & things
> still worked.
>
> Here is an interesting thing that may be a clue. When I set the
> .../tap0/proxy_arp to 1, my MOL machine complains that another
> hardware device is using my IP address. My tap0 interface is set to
> 10.0.1.x and my Mac IP address is set to 10.0.1.y, but the Mac
> complains that the tap0 hardware address has already comandeared
> 10.0.1.y. So, to actually use the tap0 interface I have to set
> ../tap0/proxy_arp to zero. Sooo, maybe this is some kind of indicator
> of how my setup is screwy on the Linux side?
>
> I'll try to see if email is somehow handled differently - I use
> Mozilla 0.9.1 and on occasion, Netscape 4.77 for email, so if your
> culprit is an M$ product, I can't be of help there. But, that
> would be seriously strange.
>
>
> You know, some websites are slow too. I don't think it's Express.
> Really Brice, I super appreciate you helping in this way. But if its
> too much trouble (and it looks like its getting that way for you) then
> don't worry about it. I'll try a few things with my BaseStation
> itself. I think this may be the issue- like maybe WEP or some port
> forwarding stuff I have set. But heck, it could be anything, from my
> kernel configs to the TiBook itself. Again, its really great to have
> your input and you have given me some ideas to work with, but don't
> feel obligated to keep going with it.
>
> Oh - about the 5.5M - that's what I have my AirPort set to. I set
> it to 11M as well, measured the actual speed and got nowhere close
> to it, so I dropped it down - the higher the speed setting, the
> lower the range, so I traded signal strength for speed.
>
>
> Wow, I didn't know that. Interesting.
>
> --William K. Gibson
> 1stDesk Systems
> firstdesk@columbus.rr.com
-- WebProjkt, Inc. (ph) 773.562.1008 (fax) 608.204.7004 http://www.webprojkt.com/
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