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Thread: Problem with Broadcom BCM4312 sharing Access Point for Android phone

  1. #1
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    Question Problem with Broadcom BCM4312 sharing Access Point for Android phone

    Workstation: Ubuntu 12.04 Desktop on Dell Inspiron 1440.

    Hello all. Since couple of days, i am trying to use my laptop as an AP so that my new android phone can connect to it. I have a Broadcom BCM4312 router with ethernet connection for internet access.
    So i used http://linuxwireless.org/en/users/Documentation/hostapd and http://linuxwireless.org/en/users/Drivers/b43 to let my router use the b43 firmware and use the hostapd.
    I have installed b43 firmware via
    Code:
    sudo apt-get install firmware-b43-lpphy-installer
    and successfully have made the Access Point which is excellently scanned by the phone that will be using the internet if i succeed.
    I followed the instructions from the following link :
    http://nims11.wordpress.com/2012/04/...-access-point/ to make the Access Point.

    However, at the 'Final Steps' heading of the link that i used to make the Access Point, i don't think the bash script is working well with me. i get the following output if i run that script:
    Code:
    winuxuser@MagicBox:~$ sudo ./initSoftAP wlan0 eth0
    Internet Systems Consortium DHCP Server 4.1-ESV-R4
    Copyright 2004-2011 Internet Systems Consortium.
    All rights reserved.
    For info, please visit https://www.isc.org/software/dhcp/
    Wrote 0 leases to leases file.
    net.ipv4.ip_forward = 1
    
    No subnet declaration for wlan0 (no IPv4 addresses).
    ** Ignoring requests on wlan0.  If this is not what
       you want, please write a subnet declaration
       in your dhcpd.conf file for the network segment
       to which interface wlan0 is attached. **
    
    
    Not configured to listen on any interfaces!
    l2_packet_receive - recvfrom: Network is down
    and the cursor keeps blinking and blinking like forever.Strange thing is that after the execution of the script, i am totally disconnected even from ethernet connected internet and have to make a restart again.

    So my question is, what is missing in my steps that i cannot forward the data packets from my laptop to the phone?
    my phone can clearly see the network, and it keeps on saying 'Obtaining ip address' and after some time, gets disconnected and the process to obtain the ip remains forever incomplete...

    any suggestions gurus?


    Code:
    winuxuser@MagicBox:~$ sudo lspci -vvn |grep 43 -A7
    0c:00.0 0280: 14e4:4315 (rev 01)
    	Subsystem: 1028:000c
    	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
    	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx-
    	Latency: 0, Cache Line Size: 64 bytes
    	Interrupt: pin A routed to IRQ 17
    	Region 0: Memory at f6cfc000 (64-bit, non-prefetchable) [size=16K]
    	Capabilities: [40] Power Management version 3
    --
    	Kernel driver in use: b43-pci-bridge
    	Kernel modules: wl, ssb
    
    winuxuser@MagicBox:~$
    Code:
    winuxuser@MagicBox:~$ sudo ifconfig -a
    br0       Link encap:Ethernet  HWaddr 00:26:5e:54:e8:eb  
              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:0 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    
    eth0      Link encap:Ethernet  HWaddr 00:25:64:55:9e:9d  
              inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: fe80::225:64ff:fe55:9e9d/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:4343 errors:0 dropped:0 overruns:0 frame:0
              TX packets:4938 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:2927552 (2.9 MB)  TX bytes:591038 (591.0 KB)
              Interrupt:46 Base address:0x8000 
    
    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:1578 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1578 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:178089 (178.0 KB)  TX bytes:178089 (178.0 KB)
    
    mon.wlan0 Link encap:UNSPEC  HWaddr 00-26-5E-54-E8-EB-00-00-00-00-00-00-00-00-00-00  
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:3881 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:714339 (714.3 KB)  TX bytes:0 (0.0 B)
    
    wlan0     Link encap:Ethernet  HWaddr 00:26:5e:54:e8:eb  
              inet addr:10.0.0.1  Bcast:10.0.0.255  Mask:255.255.255.0
              inet6 addr: fe80::226:5eff:fe54:e8eb/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:246 errors:0 dropped:0 overruns:0 frame:0
              TX packets:339 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:16790 (16.7 KB)  TX bytes:66780 (66.7 KB)
    Code:
    winuxuser@MagicBox:~$ lspci -k | grep -A 3 -i "network"
    0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    	Subsystem: Dell Wireless 1397 WLAN Mini-Card
    	Kernel driver in use: b43-pci-bridge
    	Kernel modules: wl, ssb
    winuxuser@MagicBox:~$
    I have completely switched to ubuntu and i don't want to go back to windows to use Connectify for the connections for my phone... i hope someone could help me out with the problem.... thank you for your support..
    Last edited by WinuxUser; August 13th, 2012 at 04:34 AM.
    I am # 34550 and # 547844


  2. #2
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    Re: Problem with Broadcom BCM4312 sharing Access Point for Android phone

    one more thing to add... before executing the script initSoftAP, the execution of
    Code:
    sudo hostapd /etc/hostapd/hostapd.conf
    would result my phone trying to obtain the ip continuously without any luck, but now, after the execution of the initSoftAP, i would get the following:

    Code:
    winuxuser@MagicBox:~$ sudo hostapd /etc/hostapd/hostapd.conf
    Configuration file: /etc/hostapd/hostapd.conf
    Using interface wlan0 with hwaddr 00:26:5e:54:e8:eb and ssid 'The_G_Spot'
    wlan0: STA 3e:19:be:1f:ab:b8 IEEE 802.11: disassociated
    l2_packet_receive - recvfrom: Network is down
    wlan0: IEEE 802.11 disassociated
    winuxuser@MagicBox:~$
    I have become clueless about what should i do now ...
    I am # 34550 and # 547844


  3. #3
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    Re: Problem with Broadcom BCM4312 sharing Access Point for Android phone

    I think my problem will never be solved now..
    I am # 34550 and # 547844


  4. #4
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    Re: Problem with Broadcom BCM4312 sharing Access Point for Android phone

    Bump...
    I am # 34550 and # 547844


  5. #5
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    Re: Problem with Broadcom BCM4312 sharing Access Point for Android phone

    Could anyone atleast explain me what the following lines mean?? how do i make the script get correct interface address for 'mon.wlan1' ...???
    Code:
    nipun@MagicBox:~$ sudo ./initSoftAP wlan1 eth0
    Internet Systems Consortium DHCP Server 4.1-ESV-R4
    Copyright 2004-2011 Internet Systems Consortium.
    All rights reserved.
    For info, please visit https://www.isc.org/software/dhcp/
    Wrote 0 leases to leases file.
    net.ipv4.ip_forward = 1
    Error getting interface address for 'mon.wlan1'; No such device
    Error getting interface information.
    I am # 34550 and # 547844


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