# tcpdump -i wlan0 -vvv -x
tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture size 65535 bytes
00:21:09.713975 00:24:d6:58:bb:e2 (oui Unknown) > Broadcast Null Unnumbered, xid, Flags [Response], length 6: 01 00
	0x0000:  0001 af81 0100
00:21:17.092743 00:24:d6:58:bb:e2 (oui Unknown) > Broadcast Null Unnumbered, xid, Flags [Response], length 6: 01 00
	0x0000:  0001 af81 0100
00:21:24.487257 00:24:d6:58:bb:e2 (oui Unknown) > Broadcast Null Unnumbered, xid, Flags [Response], length 6: 01 00
	0x0000:  0001 af81 0100