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 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: wlp2s0: <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 wlp2s0 valid_lft 503821sec preferred_lft 503821sec inet6 XXX scope global dynamic noprefixroute valid_lft 586490sec preferred_lft 154490sec inet6 XXX scope global dynamic noprefixroute valid_lft 535255sec preferred_lft 401398sec inet6 XXX scope global dynamic noprefixroute valid_lft 604627sec preferred_lft 172627sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever