Eu tenho uma Routerboard 951G-2HnD que executa o mais recente estável:
RouterOS v6.50.5
Firmware v3.41
A placa atua como o AP WiFi no modo WPA2-PSK. Recentemente eu tenho notado quantidade insalubre de tráfego enviado de AP para os clientes por nenhuma boa razão. Exemplo de captura do Wireshark:
Frame 11: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
Interface id: 0 (wlan0)
Encapsulation type: Ethernet (1)
Arrival Time: XX XX, 2017 18:24:01 XXX
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: XX.XX seconds
[Time delta from previous captured frame: 0.073480897 seconds]
[Time delta from previous displayed frame: 0.073480897 seconds]
[Time since reference or first frame: 14.088600317 seconds]
Frame Number: 11
Frame Length: 14 bytes (112 bits)
Capture Length: 14 bytes (112 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ethertype:ip]
Ethernet II, Src: Routerbo_XX:XX:cd (XX:XX:XX:XX:XX:cd), Dst: Tp-LinkT_XX:XX:d1 (XX:XX:XX:XX:XX:d1)
Destination: Tp-LinkT_XX:XX:d1 (XX:XX:XX:XX:XX:d1)
Address: Tp-LinkT_XX:XX:d1 (XX:XX:XX:XX:XX:d1)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Source: Routerbo_55:43:cd (XX:XX:XX:XX:XX:cd)
Address: Routerbo_55:43:cd (XX:XX:XX:XX:XX:cd)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: IPv4 (0x0800)
[Malformed Packet: IPv4]
[Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
[Malformed Packet (Exception occurred)]
[Severity level: Error]
[Group: Malformed]
Pacote:
0000 98 de d0 15 2a d1 e4 8d 8c 55 43 cd 08 00 ....*....UC...
O que poderia ser?