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: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether XXX brd XXX altname enp5s0 inet XXX brd XXX scope global dynamic noprefixroute eno1 valid_lft 76935sec preferred_lft 76935sec inet6 XXX scope global dynamic noprefixroute valid_lft 6883sec preferred_lft 3283sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever 4: enp0s20f0u3u2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000 link/ether XXX brd XXX