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From: Ivan Voras <ivoras@freebsd.org>
Date: Sat, 14 Nov 2009 12:36:38 +0100
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Cc: freebsd-hardware@freebsd.org
Subject: Curiously unable to access network - bce, 7.2-RELEASE on a HP blade
 server
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The symptoms are:

	* The device (bce0, bce1) comes up, is visible in ifconfig, can be 
configured, is UP and RUNNING, everything looks fine
	* Apparently, it simply doesn't work - no ping responses, TCP, nothing
	* But tcpdump shows that the NIC apparently does receive multicast 
router announcements, and some broadcast ARP traffic; only unicast seems 
to be affected.
	* Running "netstat 1" shows that apparently there are some packets 
received - once a second or so, and the "err" counters are 0.
	* Digging further, the dev.bce.0.stat_IfinFramesL2FilterDiscards 
contains an increasing number, currently arround 57000 and the 
dev.bce.0.stat_IfHCInBadOctets also contains an increasing number, 
currently around 450,000, while ...InOctets is around 30,000 and 
...OutBadOctets is 0.

 From the sysctls it looks like maybe it's discarding valid input 
packets. I've tried disabling rxcsum, txcsum and TSO without effect.

I cannot upgrade or install 8.0 because newusb has some problems with 
the hardware.

Any ideas?