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: enp9s0: <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 enp9s0 valid_lft 85994sec preferred_lft 85994sec inet6 XXX scope global dynamic noprefixroute valid_lft 1670sec preferred_lft 470sec inet6 XXX scope global dynamic noprefixroute valid_lft 1397sec preferred_lft 197sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever