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Date: Wed, 14 Sep 2005 15:09:21 -0700 (PDT)
From: Jon Passki <cykyc@yahoo.com>
To: freebsd-current@freebsd.org
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Subject: 6.0 BETA-3, if_bridge and invalid TCP checksum
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Hello All,

I'm running 6.0 B3 and noticed TCP checksum errors while using the
if_bridge functionality.  Disabling the onboard checksum function
on the NIC stopped the errors.  As a note, the TCP checksum put
into the packet was only the checksum (without the final inversion)
of the pseudo TCP header as described in RFC 793.  Here's info on
the card:

dmesg | grep em0                                                   

em0: <Intel(R) PRO/1000 Network Connection, Version - 2.1.7> port
0xb000-0xb01f 
mem 0xf2300000-0xf231ffff irq 18 at device 1.0 on pci1             
            
em0: Ethernet address: 00:30:48:84:01:22                           
            
em0:  Speed:N/A  Duplex:N/A   

I'd be happy to try out any patches if someone knows what's going
on.

Jon



		
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