>How would I totaly block
>
>63.xx.xx.xx ??
63.0.0.0 with a subnet mask of 255.0.0.0, aka Class A. ouch
Len
==================
> >
> >
> > > If an Ip address that I want to block are for example
> >
> > > 63.20.67.64 63.20.63.138
> >
> > > How would I block all 254 systems?
> > > Would I use 63.20.60.0 for the ip to block and 255.255.255.0 for the
> > subnet?
> >
> > Actually, the example above would be 65,536 IPs (63.20.x.x).
> >
> > If you wanted to block all IPs from 63.20.67.x, you would use
> > 63.20.67.0 and
> > a netblock of 255.255.255.0.
> >
> > If you wanted to block all IPs from 63.20.67.x and 63.20.63.x,
> > you would use
> > 63.20.67.0 with a netblock of 255.255.255.0 *and* 63.20.63.0 with
> > a netblock
> > of 255.255.255.0.
> >
> > If you want to block all IPs from 63.20.x.x, you would use 63.20.0.0 and a
> > netblock of 255.255.0.0. But, that will block a lot of computers
> > -- be sure
> > to look up to see what companies own those IP addresses before doing that.
> > It could be that you are blocking lots of small ISPs, for
> > example, or small
> > businesses with class Cs. In reality, it appears that those are both IPs
> > from a huge block of IPs that UUNet uses for dialup accounts. Blocking
> > those will block lots of people (although probably mostly dialups, which
> > wouldn't be much of a problem, unless they have static IPs).
> > -Scott
> >
> > Declude: Anti-spam and Anti-virus solutions for IMail.
> > http://www.declude.com
> >
> >
> >
> >
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> >
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> >
> >
>
>
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