[TriLUG] protection against IPv6 attacks
gwbrown1 at gmail.com
Mon Jul 6 10:15:41 EDT 2009
Actually 2001::/16 is the square the size of the entire IPv4 addressable
space, so it's pretty huge. It also contains both routable and non-routable
ranges. For instance 2001:0DB8::/32 is a non-routable block used for
As a side note you'd also succeed in blocking all of Google (2001:4860://32)
On Mon, Jul 6, 2009 at 10:07 AM, Brian McCullough <bdmc at bdmcc-us.com> wrote:
> On Sun, Jul 05, 2009 at 09:34:33PM -0400, Cristóbal Palmer wrote:
> > Howdy folks. I'd like to do more IPv6, but Kevin Otte just pointed out
> > these bugs:
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=464135
> I am confused by this report.
> In it he says that he put "2001" into /etc/hosts.deny. He then states
> that he looked at "hosts.deny", presumably "/etc/hosts.deny" and it is
> different, "ssh: 2001". What changed the contents of that file?
> Besides, "2001" could be considered equivalent to a Class A IPv4
> address. Does he really want to block all of 2001?
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