On Fri, Feb 27, 2009 at 08:44:53AM -0700, Gary Thomas wrote:

quoted

quoted

quoted

quoted

quoted

IP addresses should be attached to the lanX.X interfaces, not to eth0
-- eth0 will only be carrying specially tagged (DSA/EDSA) packets.
So you should move the IP address to lan1.1.

Can you trying pinging via lan1.1 and then seeing if there are
packets transmitted out over eth0, and dump those packets with tcpdump?

It looks like the packets are going out, but I don't see anything
on the wire.  After a few ping attempts:

root@ppc_target:~ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1D:11:81:00:00
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:41 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:2974 (2.9 KiB)
          Base address:0x6000

lan1.1    Link encap:Ethernet  HWaddr 00:1D:11:81:00:00
          inet addr:192.168.12.189  Bcast:192.168.12.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1638 (1.5 KiB)

The eth0 and lan1.1 counters are going up at more or less the
same rate.

Can you run tcpdump on eth0 to see what the packets look like?

Locally (on the board with the switch)?  That will take a while to
set up as it's a 100% embedded system, runs from FLASH, etc.

Here's the result of 'tcpdump -i eth0' while pinging:

PING 192.168.12.18 (192.168.12.18): 56 data bytes
15:52:34.718207 00:1d:11:81:00:00 (oui Unknown) > Broadcast, ethertype Unknown (0x4000), length 46:
        0x0000:  0000 0806 0001 0800 0604 0001 001d 1181  ................
        0x0010:  0000 c0a8 0ca8 0000 0000 0000 c0a8 0c12  ................
15:52:35.717893 00:1d:11:81:00:00 (oui Unknown) > Broadcast, ethertype Unknown (0x4000), length 46:
        0x0000:  0000 0806 0001 0800 0604 0001 001d 1181  ................
        0x0010:  0000 c0a8 0ca8 0000 0000 0000 c0a8 0c12  ................

I also tried pinging in from the outside, but didn't see any
packets.  I would assume that I'd see at least broadcast/ARP
packets.

Can you dump the entire packet (-s 2000) including the ethernet
headers and all (-eeexxxvvvnnn or so)?

quoted

OK, do you have ethtool then?  If yes, can you run ethtool on the
lan1.1 interface to see if any of the hardware (switch chip) TX
counters are increasing?

I'm not familiar with that tool (I did install it).  What
option (of the *many*) are you interested in?

"ethtool -S lan1.1", please.

Perhaps we should take this off-list..