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Thread: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

  1. #981
    Join Date
    May 2006
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    100acrewood
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    7,294
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    Kubuntu 16.04 Xenial Xerus

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Quote Originally Posted by _sluimers_ View Post
    You mean doing everything written in post #2?

    I did that without removing nm and I have a connection, yay! \o/

    Thanks!

    Now I've got one more network problem left. Nothing to do with security, but
    every time I connect to my router, not any other router, the line 'nameserver 192.168.2.1' in /etc/resolv.conf disappears. How can I fix that?
    Cool.

    Question: Do you need the entry in "/etc/resolv.conf" or does it have an impact on your connectivity? I never edit that file or pay attention to it at all.

  2. #982
    Join Date
    Apr 2007
    Beans
    235
    Distro
    Ubuntu

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Yes, it prevented me from certain ports, including 80. I dunno why. Anyway, I got it solved. Hurray! Thank you wieman01. You're the best!

  3. #983
    Join Date
    Oct 2006
    Beans
    7
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Hi everyone! I’ve been trying lately to get online but so far the success was rather limited, I was unable to get WPA to work.

    On Ubuntu 7.10, I am using a WLAN card with a Texas Instruments chipset and ndiswrapper instead of the native acx driver.

    Code:
    flavius@mbo:~$ sudo lspci -nn
    
    01:09.0 Network controller [0280]: Texas Instruments ACX 100 22Mbps Wireless Interface [104c:8400]
    The card and driver are working, I was able to connect to open networks as well as to WEP enabled networks (using Network Manager).

    I removed Network Manager and tried to get WPA, following this guide. Unfortunately I think that the card is unable to get an IP address as I can see from the following:

    Code:
    flavius@mbo:~$ sudo /etc/init.d/networking restart
     * Reconfiguring network interfaces...
    There is already a pid file /var/run/dhclient.wlan0.pid with pid 5800
    killed old client process, removed PID file
    Internet Systems Consortium DHCP Client V3.0.5
    Copyright 2004-2006 Internet Systems Consortium.
    All rights reserved.
    For info, please visit http://www.isc.org/sw/dhcp/
    
    Listening on LPF/wlan0/00:03:2f:18:8d:cb
    Sending on   LPF/wlan0/00:03:2f:18:8d:cb
    Sending on   Socket/fallback
    DHCPRELEASE on wlan0 to 192.168.2.1 port 67
    There is already a pid file /var/run/dhclient.wlan0.pid with pid 134519120
    Internet Systems Consortium DHCP Client V3.0.5
    Copyright 2004-2006 Internet Systems Consortium.
    All rights reserved.
    For info, please visit http://www.isc.org/sw/dhcp/
    
    Listening on LPF/wlan0/00:03:2f:18:8d:cb
    Sending on   LPF/wlan0/00:03:2f:18:8d:cb
    Sending on   Socket/fallback
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14
    No DHCPOFFERS received.
    No working leases in persistent database - sleeping.
                                                                                                                                                          [ OK ]
    The network uses WPA2 with PSK, there are several computers using it without a problem. The router has no restrictions regarding DHCP.

    Below is the info required for debug. Thanks for your help!


    Code:
    flavius@mbo:~$ route -n
    Kernel IP routing table
    Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
    169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 wlan0
    0.0.0.0         0.0.0.0         0.0.0.0         U     1000   0        0 wlan0
    
    flavius@mbo:~$ iwconfig 
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan0     IEEE 802.11b  ESSID:off/any  
              Mode:Managed  Channel:0  Access Point: Not-Associated   
              Bit Rate:22 Mb/s   Tx-Power:0 dBm   Sensitivity=0/3  
              RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality:0  Signal level:0  Noise level:0
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    flavius@mbo:~$ ifconfig 
    eth0      Link encap:Ethernet  HWaddr 00:0C:6E:9B:CB:19  
              UP BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
              Interrupt:17 Base address:0xa000 
    
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:16436  Metric:1
              RX packets:18 errors:0 dropped:0 overruns:0 frame:0
              TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:1596 (1.5 KB)  TX bytes:1596 (1.5 KB)
    
    wlan0     Link encap:Ethernet  HWaddr 00:03:2F:18:8D:CB  
              UP BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
              Interrupt:20 Memory:e2014000-e2015000 
    
    wlan0:ava Link encap:Ethernet  HWaddr 00:03:2F:18:8D:CB  
              inet addr:169.254.6.213  Bcast:169.254.255.255  Mask:255.255.0.0
              UP BROADCAST MULTICAST  MTU:1500  Metric:1
              Interrupt:20 Memory:e2014000-e2015000 
    
    flavius@mbo:~$ iwlist scan
    lo        Interface doesn't support scanning.
    
    eth0      Interface doesn't support scanning.
    
    wlan0     Scan completed :
    
              Cell 04 - Address: 00:16:38:E7:02:21
                        ESSID:"My_ESSID"
                        Protocol:IEEE 802.11FH
                        Mode:Managed
                        Frequency:2.462 GHz (Channel 11)
                        Quality:100/100  Signal level:90/154  Noise level:160/154
                        Encryption key:on
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s
                        Extra:bcn_int=100
                        Extra:atim=0
    
    flavius@mbo:~$ cat /etc/network/interfaces
    auto lo
    iface lo inet loopback
    
    auto wlan0
    iface wlan0 inet dhcp
    wpa-driver wext
    wpa-ssid My_ESSID
    wpa-ap-scan 1
    wpa-proto RSN
    wpa-pairwise CCMP
    wpa-group CCMP
    wpa-key-mgmt WPA-PSK
    wpa-psk My__hex_key
    
    flavius@mbo:~$ cat /etc/modprobe.d/ndiswrapper 
    alias wlan0 ndiswrapper
    
    flavius@mbo:~$ cat /etc/resolv.conf 
    # generated by NetworkManager, do not edit!
    
    nameserver 192.168.2.1

  4. #984
    Join Date
    May 2006
    Location
    100acrewood
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    Kubuntu 16.04 Xenial Xerus

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    @flaviusc:

    Can you confirm that you have got the right Windows driver? Does it really support WPA?

    The scan does not really list any WPA networks so I was wondering why...

  5. #985
    Join Date
    Oct 2006
    Beans
    7
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Hi,

    thanks for the prompt answer.

    Can you confirm that you have got the right Windows driver?
    It all depends on do you understand by "right". The Ubuntu "Device Manager" gives me the data mentioned below, but as far as I was able to understand, the card is actually a D-Link AirPlus DWL-520+ sold under another name here in Germany.

    Code:
    Vendor - Texas Instruments
    Product - ACX 100 22Mbps Wireless Interface
    OEM Vendor - Global Sun Technology Inc
    OEM Product - WL-8305 IEEE802.11b+ Wireless LAN PCI Adapter
    The PCI ID matches as well, so I downloaded the D-Link driver specified on the ndiswrapper web page and I was able to successfully install and use the card without a glitch.

    Does it really support WPA?
    Well, the Windows driver does NOT support WPA, it only supports WEP. But as far as I was able to understand it is the task of wpasupplicant to add WPA capabilities to a wireless card that lacks them (like the one I'm using).

    This is what dmesg tells me about the driver:

    Code:
    flavius@mbo:~$ dmesg |grep ndis
    [   39.344994] ndiswrapper version 1.45 loaded (smp=yes)
    [   39.424256] ndiswrapper: driver airplus (D-Link,09/08/2003,4.15.5.1) loaded
    [   39.425251] ndiswrapper: using IRQ 20
    [   40.023332] ndiswrapper (set_encr_mode:673): setting encryption mode to 6 failed (C00000BB)
    [   40.026065] usbcore: registered new interface driver ndiswrapper
    Is there any change on getting WPA to work on this card? Or should I start shopping for a new one?

  6. #986
    Join Date
    May 2006
    Location
    100acrewood
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    7,294
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    Kubuntu 16.04 Xenial Xerus

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Quote Originally Posted by flaviusc View Post
    Well, the Windows driver does NOT support WPA, it only supports WEP. But as far as I was able to understand it is the task of wpasupplicant to add WPA capabilities to a wireless card that lacks them (like the one I'm using).
    That's exactly your problem, mate. As the driver does not really support WPA, it won't work. wpa-supplicant will help you only if the wireless adapter understands the protocol.

    The last resort is to buy another card as WEP is highly insecure. But that's up to you of course.

  7. #987
    Join Date
    Oct 2006
    Beans
    7
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Hi,

    This page http://www.seattlewireless.net/DlinkDwl520plus claims that the card supports WPA on Windows XP using driver version 3.07. That's exactly the driver I'm using with ndiswrapper, but it looks that the info might not be true

    I am really at a lost here. Especially since the card properly identifies the IP address of the router and it actually asks for an IP address ...

    And I am sure that I've seen somewere a mention of another Windows driver for an acx 100 based card also supporting WPA. Maybe I can dig up a driver like that. Is there a way to find out if a driver supports WPA or not?

  8. #988
    Join Date
    May 2006
    Location
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    Kubuntu 16.04 Xenial Xerus

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Quote Originally Posted by flaviusc View Post
    And I am sure that I've seen somewere a mention of another Windows driver for an acx 100 based card also supporting WPA. Maybe I can dig up a driver like that. Is there a way to find out if a driver supports WPA or not?
    Yes, the change log. Every driver should come with a change log or README. It should state whether it supports WPA or not.

  9. #989
    Join Date
    Nov 2007
    Beans
    82
    Distro
    Ubuntu

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    cooooooooooolllllllllllllllllllllllll

  10. #990
    Join Date
    Apr 2006
    Beans
    1

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Hi all,

    I'm having trouble with my wireless connection. My SSID is set to broadcast, but Ubuntu doesn't pick it up. It picks up my neighbor's ["Tamago"] but not mine. I'm using the ipw3945 driver AFAIK.

    I'm using WPA2 and I don't know how to set it up. Here's everything that I can provide to help you:

    http://rafb.net/p/BtupXn50.html

    Can you please help me?

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