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Posts Tagged ‘Netmask’

Block Networks or IP Deny By Country IP Blocks

December 11th, 2011
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How to use Country IP Blocks

You can block the networks of any country on the planet. Whether you want to block China, block Russia, Block India or even United States networks, we have the solution.

Country IP Blocks provides you with the ability to block a country or countries from your network and websites. Whether you want to deny IPv4 addresses based on your incoming traffic or become proactive by limiting your internet traffic to specific countries we can help you. Here we will briefly describe our services and how to use them.

Country IP Blocks provides Access Control Lists for more than 240 countries and in nine different formats: Classless Inter-Domain Routing (CIDR), Netmask, IP Range, .htaccess deny, .htaccess allow, Decimal/CIDR, Hex/CIDR, Cisco ACL, PeerGuardian2.

There are several ways to access our data.

On the right column of every page you see a section entitled Select Format. In this section you pick the format in which you would like to receive your data. Beneath this is a section called Select Countries. You can select one or more countries. To select a single country, find and click on the country you. To select more than one country press and hold down the CTRL key and then click on as many countries as you would like.

After making your format and country selections, press the Choose Countries button and your Access Control Lists will automatically generate for you. Your lists will be sorted by country and IP in ascending format.

You may also access country lists from the Country Blocks format pages:

CIDR http://www.countryipblocks.net/country-blocks/cidr/

Netmask http://www.countryipblocks.net/country-blocks/19-2/

IP Range http://www.countryipblocks.net/country-blocks/ip-range-format/

.htaccess allow http://www.countryipblocks.net/country-blocks/htaccess-allow-format/

.htaccess deny http://www.countryipblocks.net/country-blocks/htaccess-deny-format/

Hex/CIDR http://www.countryipblocks.net/country-blocks/hexcidr-format/

Decimal/CIDR http://www.countryipblocks.net/country-blocks/decimalcidr-format/

Cisco ACL http://www.countryipblocks.net/country-blocks/cisco-acl-format/

PeerGuardian2 http://www.countryipblocks.net/country-blocks/pg2-format/

We also offer automated access, though this will be replaced with other services in 2012.

Searchable

Our database is searchable. On the right column we have two search boxes you can use to enter IP addresses to find out where they are located: country, network and regional internet registry.

Proxies:

Country IP Blocks also partially maintains a proxy list by country. This can be found here: http://www.countryipblocks.net/proxies/

For Premium and Premium Plus members we will be offering additional tools, including custom ACL’s, aggregated ip ranges by country, continent and regional internet registry. You will be able to select your list through control panel access and we will dynamically create your ACL’s daily. You will then be able to access these lists through your control panel or dynamic URL.

If you use Country IP Blocks please consider linking to our website.

Country IP Ranges by Continent

September 18th, 2009

Breaking News: We are pleased to announce that you may now select your Country IP Blocks by continent as well as by country.

We have received many requests from Network Managers and Webmasters for additional features on our Access Control Lists. One of the most requested feature is the ability to consolidate our Country IP lists by continent. Read more…

Identifying the Network and Broadcast Address of a Subnet

May 12th, 2009
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In this lesson we will attempt to simplify the identification of the Network and Broadcast address using a known IP address, within the network or subnet, and the CIDR or Netmask.  In this lesson we will walk you through the terms you need to know, the basic math and some examples.

Terms you need to know: Read more…

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