Create Network for your machines

Network creation

Network management

Subnetwork creation

Subnetwork management

A network in the cloud is a software-defined network in a cloud computing infrastructure. Cloud networks are used to transfer information between cloud resources and for the Internet connection.

Networks  

 Network creation

You can create a network in the cloud:

  1. Inside the project, in the section Networking → Networks → click on Create network. 

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In the drop-down window, enter the network name and click on Create network. If you want to create a network for Baremetal servers, activate the Baremetal Network (VLAN) selector.

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2. In the Instance creation menu, select the Private interface type in the network settings section, and select the Add network option

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In the drop-down window, enter a name for the network and click Create network. If you want to create a network for Baremetal servers, activate the Baremetal Network selector.

Baremetal network can also be used for virtual instances, for connectivity between Baremetal and virtual machines.

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Network management 

The list of networks is located inside the project, in the section Networking →  Networks

You can manage the created network:

  • Rename  

To rename a network, click the selector on the right from the selected network and select the Rename option

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  • Delete 

To delete a network, click the selector on the right from the selected network and select the Delete option

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  • Open it (Details option on the selector) to create a subnet 

Within the network, you need to create a subnet to define the range of IP addresses in the cloud network.

Subnets 

Subnetwork is a range of IP addresses in a cloud network. Addresses from this range will be assigned to machines in the cloud. 

Subnetwork creation

There are two ways to create a subnet in the network:

1. Inside the project, in the section Networking → Networks → Click on the name of the network where you want to create a subnet → Create a subnet.

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2. While creating an instance, in the Network settings section, select the Private interface type, select or create a network, and click Add a new subnetwork

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Setting the IP range 

While creating a subnet (with any method), you need to specify the address range in the CIDR format in the drop-down window

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The subnet size is set using the classless addressing (CIDR) method. Only private IPv4 addresses can be used in subnets.

Acceptable CIDR ranges:

  • 10.0.0.0 - 10.255.255.255 
  • 172.16.0.0 - 172.31.255.255 
  • 192.168.0.0 - 192.168.255.255 

Valid subnet mask range: 16-24.

Network routing 

A routed network is a private network that is already connected to a router with a public interface. All virtual servers in such networks can access the Internet through the router and accept incoming connections.

By default, a subnet in the cloud is created with Internet access( routable).

If you need to restrict machines from external connections, you need to enable the non-routable Subnetwork option while creating a subnet.

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Managing subnets 

You can see the list of subnets in the created network in the section Networking → Networks.

  • Editing a name 

To edit the subnet name, click the selector one the right from the selected subnet and select the Edit option

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In the drop-down window, you can change the name of the created subnet

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  • Deleting a subnet 

To delete a subnet, click the selector one the right from the selected subnet and click Delete

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