On Mon, 27 Nov 2006, nakamoto wrote:
>  As the original problem was shifting only 31 bits when the mask is
>  "0.0.0.0/0", the reproduction of the bug depends on MSB ( or LSB ) of
>  the initiator's address.
>  I tested the initiator with "192.168.x..x" ( MSB is set) and your IP
>  address is "10.x.x.x" ( MSB is not set ).

I don't know exactly where this code is, but the symptoms suggest that
it's using the << operator with a signed 32-bit value on the left
hand side, and 32 on the right hand side.  The C standard does not
guarantee the results of such an operation.  See revision 1.105 of
sbin/route/route.c for a fix to a similar issue.

--apb (Alan Barrett)