3c905C: invalid checksum

John Dunlap dunlap@apl.washington.edu
Mon Nov 22 02:19:04 1999


I think you may need the new 3COM driver for the C version of the 905:
http://support.3com.com/infodeli/tools/nic/linux.htm
This is referenced in 
http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
-- John
> 
> Hi,
> 
> I recently added a new machine to my network, and bought a 3c905C for it (my
> other machines run with 3c905Bs and have been trouble-free under Linux, but
> apparently 905B's aren't made anymore).  The card itself installed and works
> fine, but I get the following Scary Error(tm) every time on bootup:
> 
> 3c59x.c:v0.99H 11/17/98 Donald Becker
> http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
> eth0: 3Com 3c905C Tornado at 0xec80,  ***INVALID CHECKSUM 002f***
> 00:50:da:1a:23:60, IRQ 17
>   8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface.
>   MII transceiver found at address 24, status 782d.
>   Enabling bus-master transmits and whole-frame receives.
> 
> The machine is a dual PPro 200 running Redhat 6.1 with the kernel updated to
> 2.2.14pre7 (SMP is enabled).
> 
> Should I worry about this error?  Is there some way to fix the checksum?
> 
> Thanks,
> -Ian Schmidt
> ischmidt@cfl.rr.com
> 
> 


-- 
John Dunlap                           University of Washington
Senior Electrical Engineer            Applied Physics Laboratory
dunlap@apl.washington.edu             1013 NE 40th Street
206-543-7207, 543-1300, FAX 543-6785  Seattle, WA   98105-6698