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: ens3f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether XXX brd XXX altname enp3s0f1 inet XXX brd XXX scope global dynamic noprefixroute ens3f1 valid_lft 1909sec preferred_lft 1909sec inet6 XXX scope global temporary dynamic valid_lft 603107sec preferred_lft 84463sec inet6 XXX scope global dynamic mngtmpaddr noprefixroute valid_lft 2006054619sec preferred_lft 2006054619sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever