<div>Hi,thank you! I'll check my AP's configuration.</div>
<div> </div>
<div>But there is another question about AR2413 and madwifi driver.</div>
<div> </div>
<div>madwifi can support VAP, so I setup 2 VAPs, one is ath0, another is ath1.both of them are set SharedKey authentication and use WEP encrypthion. I type the command below to set each of them a password:</div>
<div> </div>
<div>iwconfig ath0 key [1] s:1111111111111</div>
<div>iwconfig ath1 key [1] s:2222222222222</div>
<div> </div>
<div>the strange thing happens, It seems that ath1's password overwrite the ath0's, so if I set my sta the ath1's password and select ath0 to connect, I connect the ath0 successfully. Why? are the 4 slots for WEP Key is shared by all VAPs? or VAP is not stable?</div>
<div> </div>
<div>Thank you!</div>
<div> </div>
<div><br><br> </div>
<div class="gmail_quote">2008/11/25 Dan Williams <span dir="ltr"><<a href="mailto:dcbw@redhat.com">dcbw@redhat.com</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div class="Ih2E3d">On Tue, 2008-11-25 at 17:21 +0800, c4linux c4linux wrote:<br>> Thanks for your help<br>> But i found that if I set AP with a password in an OpenSystem<br>> Authentication, STA can always connect the AP and access its<br>
> resource , Why? OpenSystem Authentication need no password?<br><br></div>You have to separate encryption (WEP/WPA/etc) from authentication<br>(Shared Key/Open System). For example, WPA uses Open System<br>exclusively, but it's more secure because it protects the communication<br>
with a strong encryption algorithm.<br><br>Open System is used even in unencrypted mode (ie, no WEP or WPA<br>enabled). But it can also be used with encryption enabled.<br><br>It's the _encryption_, not the Open System/Shared Key authentication,<br>
that makes your access point secure more secure with WEP. It sounds<br>like you've turned off encryption completely.<br><font color="#888888"><br>Dan<br></font>
<div>
<div></div>
<div class="Wj3C7c"><br><br>><br>> 2008/10/16 Dan Williams <<a href="mailto:dcbw@redhat.com">dcbw@redhat.com</a>><br>> On Thu, 2008-10-16 at 10:20 +0800, c4linux c4linux wrote:<br>> > >>Open System actually doesn't do authentication.<br>
> ><br>> ><br>> > authentication = encryption?<br>><br>><br>> No, they are different. But Shared Key authentication _uses_<br>> the WEP<br>> encryption algorithm as access control.<br>
><br>> > So Why I can do WEP encryption in an Open System<br>> authentication? I'm<br>> > confused between authentication and encryption :(<br>><br>><br>> They are two different things. Authentication determines<br>
> whether or not<br>> a user is allowed to access the system in the first place,<br>> while<br>> encryption protects the content of their messages _after_ they<br>> have been<br>
> granted access to the system. But to preserve security and<br>> prevent<br>> spoofed authentications, some authentication methods also<br>> employ<br>> encryption as part of the process, but it's a separate step<br>
> from the<br>> encryption that happens after the user has gained access to<br>> the system.<br>><br>> Dan<br>><br>><br>><br><br></div></div></blockquote></div><br>