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 3: wlp1s0: <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 wlp1s0 valid_lft 3174sec preferred_lft 3174sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever 4: wwan0: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether XXX brd XXX