promiscuous mode enabled

[Norbert Koch]

> Hi!
> I see this in dmesg.today:
> rl0: promiscuous mode enabled
> rl0: promiscuous mode disabled
> rl0: promiscuous mode enabled
> rl0: promiscuous mode disabled
> rl0: promiscuous mode enabled
> rl0: promiscuous mode disabled
> I dont understand, way my network card enter and out from promiscuous
> mode.
> 
> My card is:
> rl0: <RealTek 8139 10/100BaseTX> port 0xec00-0xecff mem 
> 0xeb203000-0xeb2030ff irq 18 at device 19.0 on pci0
> miibus2: <MII bus> on rl0
> rlphy0: <RealTek internal media interface> on miibus2
> rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Two possible reasons:
 dhcpd
 tcpdump

Norbert