An IP address 0.0.0.0 indicates a "default route", that means "match
anything" and forward
to the default gateway you have mentioned. This is useful when you have
only one exit point from
your network.

Ishrat

H M wrote:

sometimes one of my programs tries to access IP 0.0.0.0. is there some
special significance with this IP address? my firewall blocks those
attempts, and i haven't seen any negative effects so far...