Re: Incorrect Linux ARP behavior

[alan () LXORGUK UKUU ORG UK (Alan Cox)]

> checking the destination MAC address there is no way to discern if the
> packet was really bound for listening station.  To fix this problem all
> that needs to be done is add the following check (pseudo code):
>
> if(ether_header_destination != device_hardware_address) return;

        if(skb->pkt_type==PACKET_OTHERHOST)
        {
                kfree_skb(skb, FREE_READ);
                return;
        }

.. I'd agree thats a bug. In fact it got fixed about 10 seconds ago :0

There are btw several other ways to find promiscuous nodes especially
multicast aware ones.

Alan