Re: can I use wireless & wired cards together?

On Thu, Jun 16, 2005 at 02:02:21PM -0700, Kevin Oberman wrote:
> > Date: Thu, 16 Jun 2005 13:12:17 -0700
> > From: Brooks Davis <[email protected]>
> > 
> > On Thu, Jun 16, 2005 at 12:21:29PM -0700, Gary Kline wrote:
> > > On Thu, Jun 16, 2005 at 10:49:28AM -0700, Kevin Oberman wrote:
> > > > > Date: Thu, 16 Jun 2005 10:37:21 -0700
> > > > > From: Gary Kline <[email protected]>
> > > > > Sender: [email protected]
> > > > > 
> > > > > 	My orig ^Subject line prob'ly should have read: 
> > > > > 	"Can I just plug in a wifi card (and pull out my wired)?"
> > > > > 
> > > > > 	I'm assuming that my Intel 10-100 card is unplugged and 
> > > > > 	that I have a wifi (say, AR5211) inserted; will I be able
> > > > > 	to use my 600E at the library or Starbucks (or other 
> > > > > 	hotspots)?  In other words, will a wireless DHCP 
> > > > > 	configuration *work*?  If so, then it makes sense to
> > > > > 	take my ThinkPad along when I go out.  
> > > > > 
> > > > > 	gary
> > > > 
> > > > 
> > > > A much simpler question. The answer is "yes" with some caveats.
> > > > 
> > > > It assumes that the AP is transmitting a beacon (which a public system
> > > > will) and no WEP. If this is the case, it should "just work".
> > > > 
> > > > You can probably just (as root) issue 'dhclient wi0' and it should do
> > > > the trick. You probably want to be sure that your /etc/start_if.wi0 sets
> > > > the ssid to "" and wepmode to "off".
> > > 
> > > 
> > > 	Once I'm out <wherever> and reboot with the wifi card in 
> > > 	place, where do I put the above lines?  Where is
> > > 	/etc/start_if.wi0 called from?  
> > 
> > It's called from /etc/rc.d/netif and /etc/pccard_ether.  The suggested
> > step should be unnecessicary (if it's necessicary it's a bug).
> 
> I don't THINK that it is called from /etc/rc.d/netif any more. I think
> that is now all left to devd. I agree that the clearing of SSID and WEP
> should be unneeded, but I need to do it since profile(8) can leave the
> interface in a non-default configuration when the network starts. If you
> don't use profile, I agree with Brooks, but it makes moving a laptop
> around so much easier that I would never want to go back. I use static
> addresses some places, DHCP in others, different encryption and SSIDs
> are all simply dealt with with no intervention unless I connect
> somewhere with unusual characteristics.

It's called in netif during startup.  It's just not obvious because it
uses a function from /etc/network.subr, ifscript_up() instead of making
a direct call.

-- Brooks

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