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: wlp0s20f3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether XXX brd XXX permaddr XXX altname wlxac74b1198962 inet6 XXX scope global dynamic noprefixroute valid_lft 86357sec preferred_lft 86357sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever