Normal si des BROADCAST à partir de ma carte?

Bonjour,

Je me demande si c'est normal si ETHEREAL affiche des tas de résultats alors que je ne fais rien qui utilise le réseau: il y a des tas de truc broadcast avec le protocole ARP:

No. Time Source Destination Protocol Info
1 0.000000 Giga-Byt_32:0d:22 Broadcast ARP Who has 10.12.1.1? Tell 10.12.1.60

Frame 1 (60 bytes on wire, 60 bytes captured)
Ethernet II, Src: Giga-Byt_32:0d:22 (00:16:e6:32:0d:22), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Info
2 0.009827 Giga-Byt_32:0d:22 Broadcast ARP Who has 10.12.1.101? Tell 10.12.1.60

Frame 2 (60 bytes on wire, 60 bytes captured)
Ethernet II, Src: Giga-Byt_32:0d:22 (00:16:e6:32:0d:22), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Info
3 0.192570 Elitegro_5a:8b:31 Broadcast ARP Who has 10.12.1.2? Tell 10.12.1.186

Frame 3 (60 bytes on wire, 60 bytes captured)
Ethernet II, Src: Elitegro_5a:8b:31 (00:16:ec:5a:8b:31), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Info
4 0.219438 Giga-Byt_32:0d:22 Broadcast ARP Who has 10.12.1.1? Tell 10.12.1.60

Frame 4 (60 bytes on wire, 60 bytes captured)
Ethernet II, Src: Giga-Byt_32:0d:22 (00:16:e6:32:0d:22), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Info
5 0.313255 Giga-Byt_32:0d:22 Broadcast ARP Who has 10.12.1.101? Tell 10.12.1.60