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Thread: How To: Manual Network Configuration without the need for Network Manager

  1. #971
    Join Date
    Dec 2011
    Beans
    8

    Re: How To: Manual Network Configuration without the need for Network Manager

    dmesg | grep RT2 doesn't give me any results. Any idea why?

  2. #972
    Join Date
    Feb 2012
    Beans
    19

    Re: How To: Manual Network Configuration without the need for Network Manager

    GREP, Global Regular Expression Parser, did not find the r.e. (regular expression) RT2 (which evaluates literally to an RT2 character sequence) in the kernel ring buffer as piped, |, from dmesg, display or driver message, which exposes the buffer.

    Presumably, dmesg by itself, does not fail, resulting in the revelation of the contents of the buffer where all the messages are without the character...s "RT2".
    (sorry about the missing D and the malapropism of your mal-appropriated character's name R2... R2D2 ~ RTD2 sorry - a little inside cybernetic humour from one cybernaut, to another)

    The RT2860 software suite of drivers and interface code is not required for the wireless hardware of all systems but when it is required, the posting 971 shows that the Lucid UNR 10.04 LTS Live CD often succumbs to the wireless failure as noted.

    The Belkin N Wireless USB Adapter F5D8053 presents a moving target for driver identificaton unless the exact version is known - caveat 1 below.
    Do
    Code:
    lsusb | grep Belkin
    If this does not show a version use Belkin's method.

    ============================== Caveat ================================
    A cursory survey of anecdotal documentation for the Belkin N Wireless USB Adapter F5D8053 implies that as in 967
    Code:
     sudo lsmod | grep rt28*
     rt2860sta             481561  0 
     rt2870sta             461811  0
    does list modules correctly as required.
    ================================================== =================
    The above may be incorrect.
    Closer scrutiny now reveals the following observations:


    1. Belkin's website µsoft (aka mu ~ micro ...) support software is F5D8053 hardware version dependent (ref: Belkin driver link origin page) - implicating the possible Ubuntu complicity with these version complications as well.
      This is confirmed in this link:
      http://ubuntuforums.org/showthread.p...0486074&page=2
      (which confirms a suspicion that in fact the rt2800usb is in fact the correct driver at least for V3) and
      http://ubuntuforums.org/showthread.p...8055&t=1673151 where V6 of the F5D8053 uses a driver for Realtek and NOT Ralink hardware:
      Code:
      
      lsusb | grep Belkin
      Bus 001 Device 010: ID 050d:815f Belkin Components F5D8053 N Wireless  USB Adapter v6000 [Realtek RTL8192SU]
      modinfo r8192s_usb
      filename:       /lib/modules/2.6.32-21-generic/kernel/drivers/staging/rtl8192su/r8192s_usb.ko
      description:    Linux driver for Realtek RTL8192 USB WiFi cards
      ...
    2. The rt2870 identifies with USB wireless devices but unless there is also another PCI wireless device, the rt2860 is NOT relevant
      .
    3. Ralink Linux drivers exist with this specific one: RT2870USB(RT2870/RT2770 as the only RT28xx qualified w/ USB thus presumably distinct from any other RT2870 or RT28xx listed
      .
    4. The Ralink site has no matching RT2800 (or even RT280x) listing but UNR 10.04 does! Note that it identifies with the rt2870 firmware!
      Code:
      modinfo rt2800usb
      filename:       /lib/modules/2.6.32-21-generic/kernel/drivers/net/wireless/rt2x00/rt2800usb.ko
      license:        GPL
      firmware:       rt2870.bin
      description:    Ralink RT2800 USB Wireless LAN driver.
      version:        2.3.0
      author:         http://rt2x00.serialmonkey.com
      ...
    5. The Ralink site has distinct RT3070 and RT2870 listings but UNR 10.04 identifies them similarly:
      Code:
      modinfo rt2870sta
      filename:       /lib/modules/2.6.32-21-generic/kernel/drivers/staging/rt2870/rt2870sta.ko
      alias:          rt3070sta
      version:        2.0.1.0
      license:        GPL
      description:    RTxx70 Wireless LAN Linux Driver
      ...

    Possible remedial actions:

    1. For Ubuntu 9.10 (karmic), this link http://ubuntuforums.org/showthread.php?t=1382798 details the manually labour intensive installation process which is explained in this link http://ubuntuforums.org/showthread.p...5837&p=9503272 .

    ================================================== =================

    1. Specific to your case 965, check
      Code:
       dmesg | grep rt2
      (note that RT is now rt) for any other driver messages.
      .
    2. Assuming there is nothing extraordinary ...
      Check ifconfig (interface configuration) to see if wlan0 is resident, it is on and confirm it is available
      Code:
      ifconfig -a
      sudo ifconfig wlan0 up
      ifconfig
    3. Assuming that wlan0 is now on and has a HWaddr: 94:44:52:44:0f:cf from the previous step ...
      Check the interface of the wireless configuration
      Code:
      iwconfig
      which, particularly this, should look similar to:
      Code:
      wlan0     RT2860 Wireless  ESSID:""  Nickname:"RT2860STA"
                 Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
                Bit Rate:1 Mb/s   
                RTS thr:off   Fragment thr:off
                Link Quality=100/100  Signal level:-49 dBm  Noise level:-115 dBm
                Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
                Tx excessive retries:0  Invalid misc:0   Missed beacon:0
      See ref: Re: Wireless disabled for other samples of output from this command with explanations.
      .
    4. If so, the wireless adapter is functioning and can be tested by using it to list the available proximal wireless services with:
      Code:
      sudo iwlist scan

    For convenience of execution and brevity these commands are coalesced here, with a final dmesg check:
    Code:
    dmesg | grep rt2
    ifconfig -a
    sudo ifconfig wlan0 up
    ifconfig
    iwconfig
    sudo iwlist scan
    dmesg | grep RT2
    Note: except for sudo ifconfig wlan0 up, which enables the hardware, these commands, as used here, are all passive and simply report the status of the operating environment.
    Last edited by nowifi; February 16th, 2012 at 11:48 PM.

  3. #973
    Join Date
    Dec 2011
    Beans
    8

    Re: How To: Manual Network Configuration without the need for Network Manager

    Code:
    ~$ dmesg | grep rt2
    [   18.328456] rt2870sta: module is from the staging directory, the quality is unknown, you have been warned.
    [   18.371455] usbcore: registered new interface driver rt2870
    [   18.561256] rt2860sta: module is from the staging directory, the quality is unknown, you have been warned.
    from dmesg |grep rt2

    is there anything unusual?

  4. #974
    Join Date
    Dec 2011
    Beans
    8

    Re: How To: Manual Network Configuration without the need for Network Manager

    Code:
    ~$ ifconfig -a
    eth0      Link encap:Ethernet  HWaddr 00:11:43:ca:94:40  
              inet addr:193.178.2.74  Bcast:193.178.2.255  Mask:255.255.255.0
              inet6 addr: fe80::211:43ff:feca:9440/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:1541 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1451 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:1331859 (1.3 MB)  TX bytes:283192 (283.1 KB)
              Interrupt:16 
    
    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:16 errors:0 dropped:0 overruns:0 frame:0
              TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:960 (960.0 B)  TX bytes:960 (960.0 B)

  5. #975
    Join Date
    Mar 2007
    Location
    Denver, CO
    Beans
    7,958
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: How To: Manual Network Configuration without the need for Network Manager

    Everything looks ok so far, what does lshw -C network list (this won't help if this is a usb device however).

    I don't have a rt device that uses this driver so hence I can't be of much help -- sorry!

  6. #976
    Join Date
    Feb 2012
    Beans
    19

    Re: How To: Manual Network Configuration without the need for Network Manager

    An excellent official refernce is the Debian Wifi USB Devices documentation.
    Check
    Code:
    lsusb | grep Belkin
    for V#
    If this does not show a version (& more importantly "Ralink RT2870"," Realtek RTL8192SU" etc.) use Belkin's method.

    ie. (there seems to be no V2 - drivers colours: no modinfo in 10.04 : driver exists in 10.04 but may need manual persuasion to correct functionality)
    V5 works w/ Realtek driver r8192u_usb details: debian.org page r8192u_usb
    V6 works w/ Realtek driver r8192s_usb ( debian.org's r8192s_usb ) or r8712u ( debian.org's r8712u )
    V1/3/4 works w/ Ralink drivers rt2800usb (endorsed in debian.org's rt2800usb ) or rt2870sta ( debian.org's rt2870sta )

    refs:
    http://ubuntuforums.org/showpost.php...22&postcount=8

    http://ubuntuforums.org/showpost.php...4&postcount=15

    ================================================== ======
    ifconfig -a shows wlan0 is not bound (because it's missing) to a driver - the drivers rt28xx are loaded but not bound to the Belkin USB either because a different driver is needed or the drivers need repairing.

    PS. the rt2860sta is for a PCI card and is totally irrelevant, unless there is another wireless interface that is a PCI card

    (some) mutually exclusive possibilities are:

    rt2870sta if needed the supplied one is probably incorrect - it can be rebuilt ... painfully

    ** r8192s_usb **
    (ref:
    http://wiki.debian.org/rtl819x#r8192s_usb
    https://bugs.launchpad.net/ubuntu/.../+bug/492034/.../35)
    requires
    Code:
    wget http://launchpadlibrarian.net/373876...8192sfw.bin.gz
    gunzip rtl8192sfw.bin.gz
    sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/
    (for more info see http://alexsleat.co.uk/2011/02/15/re...-ubuntu-10-10/ )

    rt2800usb
    no fixes needed

    ================================================== ========
    Best ** bet ** if Belkin USB wireless is a recent acquisition, V6 is the latest version.

    If it is V6 install and test via:
    Code:
    lsusb | grep Belkin
    sudo mkdir  /lib/firmware/RTL8192SU/
    # cd /lib/firmware/RTL8192SU/
    # sudo wget  http://svn.debian.org/wsvn/kernel/dists/trunk/firmware-nonfree/realtek/RTL8192SU/rtl8192sfw.bin 
    # replaced the above, it may not be adequate, it is only 6K while below is ~66K 
    wget http://launchpadlibrarian.net/373876...8192sfw.bin.gz
    gunzip rtl8192sfw.bin.gz
    sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/
    # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 
    modprobe -r rt2860sta rt2870sta
    modprobe r8192s_usb
    ifconfig -a
    sudo ifconfig wlan0 up
    ifconfig
    iwconfig
    sudo iwlist scan
    Last edited by nowifi; February 19th, 2012 at 01:47 PM.

  7. #977
    Join Date
    Oct 2011
    Beans
    92

    Re: How To: Manual Network Configuration without the need for Network Manager

    I tried this but ran into issues, according to my router admin page I'm using `WPA-PSK[TKIP] + WPA2-PSK[AES]`

    Code:
    lshw -C network
    Code:
    *-network               
           description: Wireless interface
           product: BCM4312 802.11b/g LP-PHY
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:03:00.0
           logical name: eth1
           version: 01
           serial: c4:17:fe:65:51:f8
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11bg
           resources: irq:17 memory:f0400000-f0403fff
      *-network
           description: Ethernet interface
           product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:04:00.0
           logical name: eth0
           version: 02
           serial: 00:26:b9:23:ce:df
           size: 10Mbit/s
           capacity: 100Mbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
           resources: irq:41 ioport:2000(size=256) memory:f0810000-f0810fff memory:f0800000-f080ffff memory:f0820000-f083ffff
    so edited
    Code:
    gksu gedit /etc/wpa_supplicant.conf
    to look like

    Code:
    ctrl_interface=/var/run/wpa_supplicant
    
    network={
            ssid="MYWIFI"
            psk="MYKEY"
            key_mgmt=WPA-PSK
            proto=RSN WPA
            pairwise=CCMP TKIP
            group=CCMP TKIP
    }
    then

    then I did
    Code:
    sudo ifconfig eth1 down
    Code:
    sudo  dhclient -r eth1
    Finally
    Code:
    wpa_supplicant -Dwext -ieth1 -c/etc/wpa_supplicant.conf -dd
    The result wasn't successful:

    Code:
    Initializing interface 'eth1' conf '/etc/wpa_supplicant.conf' driver 'wext' ctrl_interface 'N/A' bridge 'N/A'
    Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
    Reading configuration file '/etc/wpa_supplicant.conf'
    ctrl_interface='/var/run/wpa_supplicant'
    Line: 3 - start of a new network block
    ssid - hexdump_ascii(len=15):
         44 61 42 6c 75 65 43 68 65 65 7a 7a 7a 7a 65      DaBlueCheezzzze 
    PSK (ASCII passphrase) - hexdump_ascii(len=8): [REMOVED]
    key_mgmt: 0x2
    proto: 0x3
    pairwise: 0x18
    group: 0x18
    PSK (from passphrase) - hexdump(len=32): [REMOVED]
    Priority group 0
       id=0 ssid='MYWIFI'
    SIOCGIWRANGE: WE(compiled)=22 WE(source)=19 enc_capa=0xf
      capabilities: key_mgmt 0xf enc 0xf flags 0x0
    netlink: Operstate: linkmode=1, operstate=5
    Own MAC address: c4:17:fe:65:51:f8
    wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_key: alg=0 key_idx=4 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_key: alg=0 key_idx=5 set_tx=0 seq_len=0 key_len=0
    wpa_driver_wext_set_countermeasures
    RSN: flushing PMKID list in the driver
    Setting scan request: 0 sec 100000 usec
    WPS: UUID based on MAC address - hexdump(len=16): 2f ee 0c d3 87 fc 56 b1 aa 78 95 f3 28 f1 ff de
    EAPOL: SUPP_PAE entering state DISCONNECTED
    EAPOL: Supplicant port status: Unauthorized
    EAPOL: KEY_RX entering state NO_KEY_RECEIVE
    EAPOL: SUPP_BE entering state INITIALIZE
    EAP: EAP entering state DISABLED
    EAPOL: Supplicant port status: Unauthorized
    EAPOL: Supplicant port status: Unauthorized
    Using existing control interface directory.
    ctrl_iface bind(PF_UNIX) failed: Address already in use
    ctrl_iface exists and seems to be in use - cannot override it
    Delete '/var/run/wpa_supplicant/eth1' manually if it is not used anymore
    Failed to initialize control interface '/var/run/wpa_supplicant'.
    You may have another wpa_supplicant process already running or the file was
    left by an unclean termination of wpa_supplicant in which case you will need
    to manually remove this file before starting wpa_supplicant again.
    
    Failed to add interface eth1
    No keys have been configured - skip key clearing
    State: DISCONNECTED -> DISCONNECTED
    wpa_driver_wext_set_operstate: operstate 0->0 (DORMANT)
    netlink: Operstate: linkmode=-1, operstate=5
    EAPOL: External notification - portEnabled=0
    EAPOL: Supplicant port status: Unauthorized
    EAPOL: External notification - portValid=0
    EAPOL: Supplicant port status: Unauthorized
    wpa_driver_wext_set_countermeasures
    No keys have been configured - skip key clearing
    Cancelling scan request
    Cancelling authentication timeout
    netlink: Operstate: linkmode=0, operstate=6
    What am I doing wrong here? thanks

  8. #978
    Join Date
    Jan 2013
    Beans
    1

    Re: How To: Manual Network Configuration without the need for Network Manager

    Just posting to say thank you for putting together this documentation...I never would've figured it out on my own!

    Hardware: HP Mini 1120NR
    Software: Open1to1.org September 2012 image (based on Ubuntu 12)

    Contents of my wpa_supplicant.conf:

    -------
    ap_scan=1
    ctrl_interface=/var/run/wpa_supplicant

    network={
    ssid="School Wifi"
    scan_ssid=0
    proto=WPA
    key_mgmt=WPA-PSK
    psk=longstringoflettersandnumbersgeneratedbywpa_pa ssphrasetool
    pairwise=TKIP
    group=TKIP
    }
    -------

    Contents of my /etc/rc.local:

    /sbin/ifconfig wlan0 down
    /sbin/dhclient -r wlan0
    /sbin/wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf -B
    /bin/sleep 5
    /sbin/ifconfig wlan0 up
    /sbin/dhclient wlan0

    This gets the wireless connection up and running before the student logs in, and I did apt-get remove network-manager so that they canNOT reveal the PSK that we use to connect them to the trusted network. Whether they can discern it from that hash is another matter, but at least now they have to work for it!

    Thanks again.

    -- MB

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