smurf's attack...

Fri Sep 5 20:04:17 UTC 1997

In message <199709051945.OAA26522 at worf.netins.net>, Jon Green writes:
>On Fri, 5 Sep 1997 15:24:58 -0400, jordyn at bestweb.net writes:
>
>>access-list XXX deny ip any 0.0.0.255 255.255.255.0
>
>Folks, this is a bad idea.  There are lots of completely valid IP
>addresses out there that end in .255.  True, most of them that
>end in .255 ARE broadcast addresses, but if people implement this
>kind of filtering on a large scale, it really breaks classless IP.

Likewise, not all broadcast adresses necessarily end with .255, 
so filtering .255 won't help anyway in the presence of something
like a /25 with a X.X.X.127 broadcast.