testgist.md

Enable USB-Ethernet bridging

• connect to edison via the console, not ssh

• build bridge-utils

  • wget http://sourceforge.net/projects/bridge/files/bridge/bridge-utils-1.5.tar.gz
  • wget http://www.linuxfromscratch.org/patches/blfs/svn/bridge-utils-1.5-linux_3.8_fix-1.patch
  • patch -Np1 -i ../bridge-utils-1.5-linux_3.8_fix-1.patch && autoconf -o configure configure.in && ./configure --prefix=/usr && make

• cd /etc/systemd/network/

• create the bridge device and network

  • vim br0.netdev

    [NetDev]
    Name=br0
    Kind=bridge

  • vim br0.network

    [Match]
    Name=br0
    
    [Network]
    DHCP=ipv4
    

• change usb0.network to use the bridge

• vim usb0.network

  [Match]
  Name=usb0
  
  [Network]
  Bridge=br0
  

• make hostapd use the bridge

  • vim /etc/hostapd/hostapd.conf
  • uncomment the line for bridge=br0

• copy over the udhcp client service file

  • cd ~/dapper-gcs
  • cp udhcpc-for-br0.service /lib/systemd/system/

• enable the service file

  • systemctl enable udhcpc-for-br0.service

• reboot the system and verify bridge is working

  • connect a usb ethernet device to th OTG port
  • reboot
  • brctl show

    bridge name     bridge id               STP enabled     interfaces
    br0             8000.0200860edb75       no              usb0
                                                            wlan0

  • ifconfig br0

    br0       Link encap:Ethernet  HWaddr 02:00:86:0e:db:75  
    inet addr:192.168.2.4  Bcast:0.0.0.0  Mask:255.255.255.0
    UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
    RX packets:77 errors:0 dropped:0 overruns:0 frame:0
    TX packets:379 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:13645 (13.3 KiB)  TX bytes:22073 (21.5 KiB)  

  • curl -4 icanhazip.com
    • connect laptop to the gcs approx
    • browse to web page you never use, like www.yahoo.com =P