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nysus1

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How do configure /etc/network/interfaces file to work with encryption?

I have a Linksys wmp-11 wireless PCI card on my Debian system and trying to connect to a Linksys 4 port router.  More accurately, I'm trying to get it to work with encryption turned on.  It works fine without encryption.

Here's the relevant portion of my /etc/network/interface file:

wireless_mode Ad-Hoc
wireless_essid linksys
wireless_key 26-hex-digits

I've tried a bunch of other settings but couldn't get anything to work.
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dlangr

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dlangr

note that mode has to be managed if connecting to a linksys router, as ad-hoc networking is for computer to computer connections without involving a wireless router or AP
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Re the managed setting.  I had it that way initially.  The ad-hoc setting was there out of desperation.

The good news is I got it working.  The frustrating thing is that I'm not sure what fixed it.  I disabled encryption on the router and removed the encryption key from the interface file.   But the 'iwconfig eth1' told me the password key was still being used; even after issuing a '/etc/init.d/networking restart' command.  When I renabled encryption on the router and the interface file and did 'iwconfig eth1 key on' it started to work.

My question is: Why did I have to issue that command?  Doesn't '/etc/init.d/networking restart' take care of that?
Excerpt from http://www.linuxcommand.org/man_pages/iwconfig8.html 

Some cards may not apply changes done  through  Wireless  Extensions  immediately  (they  may  wait to aggregate the changes or apply it only when the card is brought up  via  ifconfig).  This command  (when  available)  forces the card to apply all pending changes. This is normally not needed, because the  card  will eventually apply the changes, but can be useful for debugging.