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: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether XXX brd XXX permaddr XXX inet XXX brd XXX scope global dynamic noprefixroute wlp2s0 valid_lft 172642sec preferred_lft 172642sec inet6 XXX scope global dynamic noprefixroute valid_lft 604642sec preferred_lft 172642sec inet6 XXX scope global dynamic noprefixroute valid_lft 1797sec preferred_lft 1797sec inet6 XXX scope global dynamic noprefixroute valid_lft 298sec preferred_lft 298sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever