Hi,
here Nevio, from Italy. I’m new in the forum.
I’m playing with a BeagleBone Black C with debian 7.5 2014-07-06 version.
The BBB is connected to the local network with internet access, and I run it with ssh.
I have connected also a usb internet-key (Huawei E3131) that work out of the box. This internet key is different from the others because it is seen as an ethernet device, not usb device.
I am having trouble with configuring which internet connection the system has to use.
In particular I would like the BBB use the internet connection via LAN if the internet via LAN is up, else the other connection (via usb internet key).
I have configured the two eth connections with different priorities (/etc/network/interfaces), however if the LAN has no internet connection the system don’t use the usb-key.
I post my config file.
eth0 = wired connection, gateway 192.168.0.1
eth1 = via usb internet key, gateway 192.168.1.1
debian@arm:~$ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. From 192.168.0.1 icmp_seq=1 Destination Net Unreachable From 192.168.0.1 icmp_seq=2 Destination Net Unreachable From 192.168.0.1 icmp_seq=3 Destination Net Unreachable From 192.168.0.1 icmp_seq=4 Destination Net Unreachable From 192.168.0.1 icmp_seq=5 Destination Net Unreachable ^C --- 8.8.8.8 ping statistics --- 9 packets transmitted, 0 received, +9 errors, 100% packet loss, time 8012ms
debian@arm:~$ ping -I eth1 8.8.8.8 PING 8.8.8.8 (8.8.8.8) from 192.168.0.14 eth1: 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_req=3 ttl=43 time=658 ms 64 bytes from 8.8.8.8: icmp_req=2 ttl=43 time=1687 ms 64 bytes from 8.8.8.8: icmp_req=1 ttl=43 time=2687 ms 64 bytes from 8.8.8.8: icmp_req=4 ttl=43 time=47.6 ms ^C --- 8.8.8.8 ping statistics --- 8 packets transmitted, 7 received, 12% packet loss, time 7003ms rtt min/avg/max/mdev = 47.670/899.876/2687.464/921.850 ms, pipe 3
debian@arm:~$ sudo route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 0.0.0.0 192.168.1.1 0.0.0.0 UG 10 0 0 eth1 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.7.0 0.0.0.0 255.255.255.252 U 0 0 0 usb0
`
debian@arm:~$ nano /etc/network/interfaces
This file describes the network interfaces available on your system
and how to activate them. For more information, see interfaces(5).
The loopback network interface
auto lo
iface lo inet loopback
The primary network interface
auto eth0
iface eth0 inet static
address 192.168.0.14
netmask 255.255.255.0
gateway 192.168.0.1
Example to keep MAC address between reboots
#hwaddress ether DE:AD:BE:EF:CA:FE
The secondary network interface
auto eth1
allow-hotplug eth1
#allow-auto eth1
iface eth1 inet static
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1
metric 10
WiFi Example
#auto wlan0
#iface wlan0 inet dhcp
wpa-ssid “essid”
wpa-psk “password”
Ethernet/RNDIS gadget (g_ether)
… or on host side, usbnet and random hwaddr
Note on some boards, usb0 is automaticly setup with an init script
iface usb0 inet static
address 192.168.7.2
netmask 255.255.255.0
network 192.168.7.0
gateway 192.168.7.1
`