1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback XXX brd XXX inet XXX scope host lo valid_lft forever preferred_lft forever inet6 XXX scope host noprefixroute valid_lft forever preferred_lft forever 2: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 link/ether XXX brd XXX 3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether XXX brd XXX inet XXX brd XXX scope global dynamic noprefixroute wlp4s0 valid_lft 70573sec preferred_lft 70573sec inet6 XXX scope global temporary dynamic valid_lft 602394sec preferred_lft 83409sec inet6 XXX scope global mngtmpaddr noprefixroute valid_lft forever preferred_lft forever inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever 4: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 500 link/none inet XXX brd XXX scope global noprefixroute tun0 valid_lft forever preferred_lft forever inet6 XXX scope link stable-privacy valid_lft forever preferred_lft forever