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 fq_codel state DOWN group default qlen 1000 link/ether XXX brd XXX 3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1456 qdisc noqueue state UP group default qlen 1000 link/ether XXX brd XXX inet XXX brd XXX scope global dynamic noprefixroute wlp1s0 valid_lft 17866sec preferred_lft 17866sec inet6 XXX scope global dynamic noprefixroute valid_lft 7068sec preferred_lft 3468sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever