How to understand network block

For example, you have got a following network: 212.124.111.16/29, it mean that you have 8 IP addresses but only 5 IP addresses can be used on your servers.

  • 212.124.111.16 - network address (can not be used)
  • 212.124.111.17 - gateway address (you should use it as gateway address only)
  • 212.124.111.18 - 1st IP address of your server
  • 212.124.111.19 - 2nd IP address of your server
  • 212.124.111.20 - 3rd IP address of your server
  • 212.124.111.21 - 4th IP address of your server
  • 212.124.111.22 - 5th IP address of your server
  • 212.124.111.23 - broadcast address (can not be used)
  • 255.255.255.248 - network mask

You can use a online calculator below to find out your Network mask, Network size and Useful IPs

DNS configuration

We recommend you to use this free Google DNS. They are always the same:

  • Primary DNS: 8.8.8.8
  • Secondary DNS: 8.8.4.4

Network block online calculator

This online calculator will help you to find out your data with other /xx subnets suffixes

Enter network block below and click 'Show Info'.

Show Info