After a recent world update I have a new network interface in addition to 'lo' and the real network interface ('eth0', now named 'enp1s4'):
# ifconfig dummy0 dummy0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 1500 ether 2e:a2:4b:cb:f2:3f txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 51 bytes 19992 (19.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 # udevadm info -p /sys/class/net/dummy0 P: /devices/virtual/net/dummy0 E: DEVPATH=/devices/virtual/net/dummy0 E: IFINDEX=2 E: INTERFACE=dummy0 E: SUBSYSTEM=net I'm using sys-fs/udev-210 on an ~amd64 with the predictable network interface names. Does anybody know where this dummy0 interface comes from? Can I (or should I) disable or remove it? thanks, raffaele