I have my BBB configured to use a static IP address using the following in the file /etc/network/interfaces:allow-hotplug eth0iface eth0 inet static    address 192.168.0.1    netmask 255.255.255.0    network 192.168.0.0This seems to work ok on boot, but when the ethernet cable is unplugged and then plugged back in, I lose the IP address.  Any ideas what's going on here?Another weird symptom: If I boot the BBB with the network cable unplugged, but the switch it's plugged into off, I'll get my static IP.  But, when I turn the switch on, I'll get a DHCP-assigned address.  This is even though I have it configured with a static IP address.One last thing.  If I ifdown etho, the interface will be gone when I do an ifconfig.  If I wait a few seconds, though, and then re-run ifconfig, it will reappear, without an IP address.  (Before I disabled IPv6, I used to get a IPv4 DHCP address in this case... weird).  When that happens, I get a message like this in /var/log/messages:Apr 23 20:32:06 beaglebone kernel: [  737.170172] libphy: 4a101000.mdio:00 - Link is Up - 100/FullApr 23 20:32:06 beaglebone kernel: [  737.170304] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes readyHere's my uname -a:root@beaglebone:/etc# uname -aLinux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/LinuxAny ideas what's going on here?
Static IP addressing issue in Ubuntu on BeagleBoneBlack Rev C
ubuntu;networking;ip