<https://forum.armbian.com/topic/4779-problem-with-route-on-eth0-cable-disconnected/#comment-40046>
<http://schema.org/text>
"Hi,\n \n\n\n\t \n \n\n\n\ti have the same issue, after boot there is only device:wlan0, but after some time I have eth0 and eth0:avahi\n \n\n\n\t \n \n\n\n$ sudo ifconfig\nbond0     Link encap:Ethernet  HWaddr 96:06:73:94:b5:98  \n          UP BROADCAST MASTER MULTICAST  MTU:1500  Metric:1\n          RX packets:0 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)\n\neth0      Link encap:Ethernet  HWaddr 02:c8:06:83:22:ef  \n          UP BROADCAST MULTICAST  MTU:1500  Metric:1\n          RX packets:0 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)\n          Interrupt:50 \n\neth0:avahi Link encap:Ethernet  HWaddr 02:c8:06:83:22:ef  \n          inet addr:169.254.8.145  Bcast:169.254.255.255  Mask:255.255.0.0\n          UP BROADCAST MULTICAST  MTU:1500  Metric:1\n          Interrupt:50 \n\nlo        Link encap:Local Loopback  \n          inet addr:127.0.0.1  Mask:255.0.0.0\n          inet6 addr: ::1/128 Scope:Host\n          UP LOOPBACK RUNNING  MTU:65536  Metric:1\n          RX packets:168 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:168 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX bytes:14624 (14.2 KiB)  TX bytes:14624 (14.2 KiB)\n\nwlan0     Link encap:Ethernet  HWaddr 98:3b:16:e8:e7:b3  \n          inet addr:192.168.0.12  Bcast:192.168.0.255  Mask:255.255.255.0\n          inet6 addr: fe80::9a3b:16ff:fee8:e7b3/64 Scope:Link\n          inet6 addr: fd00:8494:8cb6:68e2:9a3b:16ff:fee8:e7b3/64 Scope:Global\n          inet6 addr: 2a02:8109:a53f:ff3c::3/128 Scope:Global\n          inet6 addr: 2a02:8109:a53f:ff3c:9a3b:16ff:fee8:e7b3/64 Scope:Global\n          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:949 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:553 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX bytes:118594 (115.8 KiB)  TX bytes:154410 (150.7 KiB)\n\n\n\twhich results in 2 default routes for IPv4 (IPv6 is fine)\n \n\n\n$ sudo route\nKernel IP routing table\nDestination     Gateway         Genmask         Flags Metric Ref    Use Iface\ndefault         *               0.0.0.0         U     1002   0        0 eth0\ndefault         hitronhub.home  0.0.0.0         UG    1024   0        0 wlan0\nlink-local      *               255.255.0.0     U     0      0        0 eth0\nlink-local      *               255.255.0.0     U     1000   0        0 wlan0\n192.168.0.0     *               255.255.255.0   U     0      0        0 wlan0\n\n\n\tThe easy workaround is to delete default route on interface eth0, which is not connected.\n \n\n\n$ sudo ip route del default dev eth0\n\n\n\t \n \n"
<https://forum.armbian.com/topic/4779-problem-with-route-on-eth0-cable-disconnected/>