Blocking IP addresses.

Andy J. · External Since: Aug 07, 2005 Posts: 62

If I wish to use the IP blocking feature of
Smoothwall 2.0 to block an entire group of
addresses what do I have to enter as the
source IP address?

For example if I wanted to block every attempt
from 211.34.123.0 thru to 211.34.123.255 surely
I don't need to enter 256 separate addresses as
source IP's?

Regards,
Andy Jenkins.

Peder · External Since: Jun 30, 2007 Posts: 1

This message is not archived

Andy J. · External Since: Aug 07, 2005 Posts: 62

Peder wrote:
> "Andy J." <andrew DeleteThis @pcy.net> wrote in news:MuKdnS-RvaTdqBvbRVnygwA@pipex.net:
>
>> 211.34.123.0
>
> Block the network - 211.34.123.0
>

But what do I enter in the Source IP box (in the IP Block Page) to
allow this. As I understand it from the docs; entering
211.34.123.0/24 will match the first 24 bits of any address (class C)
and 211.34.123.0/16 will match up with anything with the same
first 16 bits (class B). I want to block someone who is spamming my
guestbooks and using very varying addresses. I really need to match
the first 8 bits only but I'm not sure if putting a /8 at the end is
working properly. I don't want to block three-quarters of the
internet from accessing my web-server.

Andy.