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: enp4s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether XXX brd XXX inet XXX brd XXX scope global dynamic noprefixroute enp4s0f1 valid_lft 862806sec preferred_lft 862806sec inet6 XXX scope global temporary dynamic valid_lft 7098sec preferred_lft 3498sec inet6 XXX scope global dynamic mngtmpaddr noprefixroute valid_lft 7098sec preferred_lft 3498sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever 3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000 link/ether XXX brd XXX