[rescue] IP blocks

[Eric Dittman]

> > >I've got a question that may be best asked here, since we've
> > >got people with lots of net experience.  I want to find all
> > >the IP blocks for wanadoo.fr (and a couple of others, but
> > >that's the top one on my list) so I can block them at my
> > >firewall.  What's the best way to find all the IP blocks
> > >for a given domain?
> > 
> > DNScan?
> > But why do you want to block out France's largest ISP? I know, telecom-run
> > ISPs are usually very lame and filled with lamers, but I thought only I was
> > fascistoid enough to do such things to entire subdomains.
> 
> The follow-ups about the problems with lots of hack attempts
> and the inability of the ISP to do anything about it.
> 
> I'm also going to block one of Germany's biggest ISPs, too.
> I see a lot of hack attempts from t-dialin.net.

BTW, I still haven't found an easy way to translate an AS
number (AS3215 in this case) into a set of IP blocks.
-- 
Eric Dittman
dittman at dittman.net
Check out the DEC Enthusiasts Club at http://www.dittman.net/