Eugene Berdnikov, ну хоть шторма нет - уже радует ;)
Вот что показывает машинка после вашей команды (интервал для link list такой же - 10-15 сек.): root@base:~# mii-tool -v eth3 eth3: negotiated 100baseTx-FD, link ok product info: vendor 00:90:c3, model 24 rev 0 basic mode: autonegotiation enabled basic status: autonegotiation complete, link ok capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control root@base:~# ethtool eth3 Settings for eth3: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Link partner advertised pause frame use: Symmetric Link partner advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Current message level: 0x00000001 (1) drv Link detected: yes root@base:~# ip -s -d link list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 RX: bytes packets errors dropped overrun mcast 7044 102 0 0 0 0 TX: bytes packets errors dropped carrier collsns 7044 102 0 0 0 0 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT qlen 1000 link/ether 00:e0:4d:aa:6e:61 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 0 0 0 0 0 0 TX: bytes packets errors dropped carrier collsns 0 0 0 0 0 0 3: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT qlen 1000 link/ether 14:cc:20:05:0f:1e brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 60 1 0 0 0 0 TX: bytes packets errors dropped carrier collsns 4246 23 0 0 22 0 root@base:~# ip -s -d link list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 RX: bytes packets errors dropped overrun mcast 7044 102 0 0 0 0 TX: bytes packets errors dropped carrier collsns 7044 102 0 0 0 0 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT qlen 1000 link/ether 00:e0:4d:aa:6e:61 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 0 0 0 0 0 0 TX: bytes packets errors dropped carrier collsns 0 0 0 0 0 0 3: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT qlen 1000 link/ether 14:cc:20:05:0f:1e brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 60 1 0 0 0 0 TX: bytes packets errors dropped carrier collsns 4246 23 0 0 22 0 root@base:~# tcpdump -nIUX -s0 -c20 -i eth3 tcpdump: eth3: That device doesn't support monitor mode