root@am65xx-evm:~# ifconfig eth3 eth3 Link encap:Ethernet HWaddr 70:FF:76:1D:60:C8 inet6 addr: fe80::72ff:76ff:fe1d:60c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:23 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:3782 (3.6 KiB) root@am65xx-evm:~# ethtool -S eth3 NIC statistics: rx_good_frames: 0 rx_broadcast_frames: 0 rx_multicast_frames: 0 rx_crc_error_frames: 0 rx_mii_error_frames: 0 rx_odd_nibble_frames: 0 rx_frame_max_size: 2000 rx_max_size_error_frames: 0 rx_frame_min_size: 64 rx_min_size_error_frames: 0 rx_overrun_frames: 0 rx_class0_hits: 0 rx_class1_hits: 0 rx_class2_hits: 0 rx_class3_hits: 0 rx_class4_hits: 0 rx_class5_hits: 0 rx_class6_hits: 0 rx_class7_hits: 0 rx_class8_hits: 0 rx_class9_hits: 0 rx_class10_hits: 0 rx_class11_hits: 0 rx_class12_hits: 0 rx_class13_hits: 0 rx_class14_hits: 0 rx_class15_hits: 0 rx_smd_frags: 0 rx_bucket1_size: 64 rx_bucket2_size: 128 rx_bucket3_size: 256 rx_bucket4_size: 512 rx_64B_frames: 0 rx_bucket1_frames: 0 rx_bucket2_frames: 0 rx_bucket3_frames: 0 rx_bucket4_frames: 0 rx_bucket5_frames: 0 rx_total_bytes: 0 rx_tx_total_bytes: 4140 tx_good_frames: 24 tx_broadcast_frames: 4 tx_multicast_frames: 24 tx_odd_nibble_frames: 0 tx_underflow_errors: 0 tx_frame_max_size: 2000 tx_max_size_error_frames: 0 tx_frame_min_size: 64 tx_min_size_error_frames: 0 tx_bucket1_size: 64 tx_bucket2_size: 128 tx_bucket3_size: 256 tx_bucket4_size: 512 tx_64B_frames: 0 tx_bucket1_frames: 0 tx_bucket2_frames: 13 tx_bucket3_frames: 7 tx_bucket4_frames: 4 tx_bucket5_frames: 0 tx_total_bytes: 4140 root@am65xx-evm:~# tcpdump -i eth3 [ 51.312091] 001: device eth3 entered promiscuous mode tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth3, link-type EN10MB (Ethernet), capture size 262144 bytes 04:08:40.118027 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:ff (oui Ethernet), ethertype Unknown (0xfec1), length 60: 0x0000: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0010: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0020: 0000 0000 0000 0000 0000 0000 0000 .............. ^C 1 packet captured 1 packet received by filter 0 packets dropped by kernel [ 59.136486] 002: device eth3 left promiscuous mode root@am65xx-evm:~# ifconfig eth3 eth3 Link encap:Ethernet HWaddr 70:FF:76:1D:60:C8 inet6 addr: fe80::72ff:76ff:fe1d:60c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1 errors:0 dropped:0 overruns:0 frame:0 TX packets:27 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:60 (60.0 B) TX bytes:4590 (4.4 KiB) root@am65xx-evm:~# ethtool -S eth3 NIC statistics: rx_good_frames: 1 rx_broadcast_frames: 0 rx_multicast_frames: 0 rx_crc_error_frames: 0 rx_mii_error_frames: 0 rx_odd_nibble_frames: 0 rx_frame_max_size: 2000 rx_max_size_error_frames: 0 rx_frame_min_size: 64 rx_min_size_error_frames: 0 rx_overrun_frames: 0 rx_class0_hits: 1 rx_class1_hits: 0 rx_class2_hits: 0 rx_class3_hits: 0 rx_class4_hits: 0 rx_class5_hits: 0 rx_class6_hits: 0 rx_class7_hits: 0 rx_class8_hits: 0 rx_class9_hits: 0 rx_class10_hits: 0 rx_class11_hits: 0 rx_class12_hits: 0 rx_class13_hits: 0 rx_class14_hits: 0 rx_class15_hits: 0 rx_smd_frags: 0 rx_bucket1_size: 64 rx_bucket2_size: 128 rx_bucket3_size: 256 rx_bucket4_size: 512 rx_64B_frames: 1 rx_bucket1_frames: 1 rx_bucket2_frames: 0 rx_bucket3_frames: 0 rx_bucket4_frames: 0 rx_bucket5_frames: 0 rx_total_bytes: 64 rx_tx_total_bytes: 4632 tx_good_frames: 26 tx_broadcast_frames: 5 tx_multicast_frames: 26 tx_odd_nibble_frames: 0 tx_underflow_errors: 0 tx_frame_max_size: 2000 tx_max_size_error_frames: 0 tx_frame_min_size: 64 tx_min_size_error_frames: 0 tx_bucket1_size: 64 tx_bucket2_size: 128 tx_bucket3_size: 256 tx_bucket4_size: 512 tx_64B_frames: 0 tx_bucket1_frames: 0 tx_bucket2_frames: 14 tx_bucket3_frames: 7 tx_bucket4_frames: 5 tx_bucket5_frames: 0 tx_total_bytes: 4568 root@am65xx-evm:~#