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 4: enp11s0f3u1u1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq state UP group default qlen 1000 link/ether XXX brd XXX inet XXX brd XXX scope global dynamic noprefixroute enp11s0f3u1u1 valid_lft 12005sec preferred_lft 12005sec inet6 XXX scope global dynamic noprefixroute valid_lft 1627sec preferred_lft 1627sec inet6 XXX scope global dynamic noprefixroute valid_lft 2591615sec preferred_lft 604415sec inet6 XXX scope link noprefixroute valid_lft forever preferred_lft forever