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: enp0s20: <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 enp0s20 valid_lft 42640sec preferred_lft 42640sec inet6 XXX scope global temporary deprecated dynamic valid_lft 1224sec preferred_lft 0sec inet6 XXX scope global deprecated dynamic mngtmpaddr noprefixroute valid_lft 1224sec preferred_lft 0sec inet6 XXX scope global dynamic noprefixroute valid_lft 563562sec preferred_lft 563562sec inet6 XXX scope global temporary dynamic valid_lft 563562sec preferred_lft 45020sec inet6 XXX scope global dynamic mngtmpaddr noprefixroute valid_lft 604800sec preferred_lft 604800sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever