Date: Tue, 4 Jan 2005 10:17:01 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: Peter Jeremy <PeterJeremy@optushome.com.au> Cc: freebsd-stable@freebsd.org Subject: Re: Strange networking problems after update 5.2.1->5.3 Message-ID: <20050104101701.3a08b138.gerrit@pmp.uni-hannover.de> In-Reply-To: <20050103193026.GB34222@cirb503493.alcatel.com.au> References: <20050103101654.GA51270@pmp.uni-hannover.de> <Pine.NEB.3.96L.1050103131332.46177F-100000@fledge.watson.org> <20050103155826.0fed63ea@arc.pmp.uni-hannover.de> <20050103193026.GB34222@cirb503493.alcatel.com.au>
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On Tue, 4 Jan 2005 06:30:26 +1100 Peter Jeremy <PeterJeremy@optushome.com.au> wrote about Re: Strange networking problems after update 5.2.1->5.3: PJ> >ed0: flags=108843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 PJ> > inet 130.75.117.37 netmask 0xffff0000 broadcast 130.75.255.255 PJ> > ether 01:d4:ff:03:00:20 PJ> That's a multicast MAC address (the LSB of the first byte is 1). More Ok, I didn't know about this. Can you recommend any online resource where those special things are documented? PJ> intelligent NICs will have an internal list of multicast MAC addresses PJ> that they have been programmed to respond to and will ignore all other PJ> multicast addresses (for dumber NICs, this checking should be in the PJ> driver). This would explain the peculiar behaviour you are seeing. For sure. PJ> Firstly, I presume you're not attempting to change the MAC address. Correct, I even don't know how to do this. ;-) PJ> Secondly, the MAC address should be reported as part of the ed0 probe PJ> message - can you have a look back through your messages file and PJ> report the ed0 probe messages for both 5.2.1 and 5.3. Ok, 5.2.1 reported the following Dec 28 10:15:05 lonestar kernel: ed1: <Dual Speed 10/100 Port Attached PC Card> at port 0x100-0x11f irq 11 function 0 config 16 on pccard1 Dec 28 10:15:05 lonestar kernel: ed1: address 00:e0:98:a2:a7:33, type Linksys (16 bit) Dec 28 10:15:05 lonestar kernel: miibus0: <MII bus> on ed1 With 5.3 it says Dec 29 15:48:15 lonestar kernel: ed1: <Dual Speed 10/100 Port Attached PC Card> at port 0x100-0x11f irq 11 function 0 config 16 on pccard1 Dec 29 15:48:15 lonestar kernel: ed1: [GIANT-LOCKED] Dec 29 15:48:15 lonestar kernel: ed1: Ethernet address: 01:d4:ff:03:00:20 Dec 29 15:48:15 lonestar kernel: ed1: if_start running deferred for Giant Dec 29 15:48:15 lonestar kernel: type NE2000 (16 bit) I admit that I've got no clue where this new MAC is coming from. :) cu Gerrit
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