> -----Original Message----- > From: Norman Baz [mailto:baz.norman@xxxxxxxxx] > Sent: Friday, December 21, 2007 2:56 PM > To: Jeff Haran; linux-net@xxxxxxxxxxxxxxx > Subject: Re: Multiple unicast MACs on the same interface > > I've tried also with intel NIC (e100 driver) result is the same. > Unicast MAC address was added to multicast cache, > but I cannot ping system from remote machine with static MAC entry. > On tcpdump output I can see arriving frames with correct address > (the unicast one I addes to multicast filter), > but for some reason system is not responding. > > Can you provide Jeff or anybody else a name of NIC that is capable > to support multiple unicast MAC addresses? > > One more question is it possible to deactivate MAC filter > on NIC so that I will receive everything (no matter if this > will be efficient or not) > and pass it to L3 routines? I tried to set NIC into promisc mode: > "ip l set dev eth0 promisc on" > but it looks like even with having promisc mode enabled > system is not responding. > > > Thanks, > > -- > Norman Baz I don't know of NICs that would support this. When you run tcpdump, are you doing so such that it puts the interface in promiscuous mode? Without the "-p" option, tcpdump will put the interface in promiscuous mode (at least according to the man pages on my machine). If not in promiscuous mode, then I would suspect that your hardware supports this and thus the problem is in the IP stack above it. If tcpdump is putting the NIC into promiscuous mode, then the observation that it receives packets to other MAC addresses proves nothing about the capabilities of your NIC other than it supports promiscuous mode, which in my experience just about all of them do. Jeff Haran Brocade - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
