#ifcofig /// 4: vlan412@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP link/ether 00:1a:4d:9a:ae:b8 brd ff:ff:ff:ff:ff:ff inet6 fe80::21a:4dff:fe9a:aeb8/64 scope link valid_lft forever preferred_lft forever
что за заклинания в последней строке?