Manage Networks

Networks provide connectivity for instances.

Key features

• List view: View all networks with status, subnets, and sharing information
• Tab-based organization: Browse by Current tenant, Shared, or External networks
• Search: Find networks by name or ID
• Detail view: Review network details, subnets, and connected ports
• Subnet management: Create and manage subnets within networks

Type tabs

Tabs that split the Networks list by type.

No.	Feature	Item	Description
2-1	Type tab	Current tenant	· Networks owned by the current tenant.
2-2	Type tab	Shared	· Shared networks.
2-3	Type tab	External	· External (provider) networks.

Search and toolbar

The area for searching the list, exporting CSV, and running bulk actions on selected rows.

No.	Feature	Item	Description
3-1	Search	Attribute search box	· Filters the list by attributes such as name, ID, and status.
3-2	Export	Download CSV	· Exports the current list as a CSV file.
3-3	Bulk action	Delete	· Deletes the selected items (a confirmation modal appears).

Create a network

Creates a new virtual network and subnet.

A network is usually created together with a subnet. Instances can only receive an IP when a subnet exists.

1. Click Create network at the top right of the Networks list.

2. Under Basic information, enter a network name and, optionally, a description, then click Next. Expand Advanced to change the items below; if you leave them alone, the defaults apply.

   Item	Description
   Admin State	Whether the network is created in the Up state. Default: Up
   Port security	Allows only permitted devices to access this network. Keeping it on is recommended in most cases. Default: On
   MTU	The MTU value of the network, in bytes. Minimum 68; the system default applies if left empty.

3. In the Subnet step, fill in the fields below with Create subnet turned on. If you turn it off, only the network is created, without a subnet.

   Field	Description
   Subnet name	A name that identifies the subnet.
   CIDR	The address range of the subnet. Example: 192.168.1.0/24
   Gateway	Turn it on and enter the gateway IP. It must be an address inside the subnet; the network address and broadcast address cannot be used.
   DHCP (Advanced)	When on, instances are assigned an IP automatically. On by default.
   Allocation pools (Advanced)	Manually define the range of IPs that DHCP assigns automatically. Addresses outside the range are not assigned, so use this to set addresses aside for fixed IPs. Enter one range per line (for example, 192.168.0.100,192.168.0.200).
   DNS (Advanced)	Enter one DNS server address per line.
   Host routes (Advanced)	Manually specify a route to a specific destination. Enter the destination CIDR and the next hop IP (for example, 10.10.0.0/24,192.168.0.254).

4. Check the network and subnet quotas in the summary on the right, then click Create.

To communicate with the outside

After creating the network, create a Router, turn on its external gateway, and connect this subnet to the router. Only then can instances reach the outside.

List

A table that shows virtual networks with their status, subnet CIDR, and whether they are external or shared.

No.	Feature	Item	Description
5-1	List columns	Status	The network status (Active and so on).
		Name	The network name and ID.
		Subnet CIDR	The subnet range (CIDR).
		External	Whether the network is external.
		Shared	Whether the network is shared.
		Admin State	The admin state (Up/Down).
		Created at	The creation date and time.
		Action	The menu that opens from the button at the end of the row: Create subnet (add a subnet) · Edit · Delete.

Available actions

Action	Description	Availability
Create Subnet	Add a new subnet to the network	Networks in the current tenant only (external networks excluded)
Edit	Change the network name and description	Networks in the current tenant only
Delete	Remove the network and all its subnets	Networks in the current tenant only, no ports in use

Network types

• Current tenant: Private networks created in the current tenant
• Shared: Networks shared by other tenants
• External: Networks providing external/internet connectivity (read-only)

Create a subnet

Add a subnet to an existing network. Subnets cannot be added to external networks.

1. In the list, click Action → Create subnet on the network row. You can also open it from the button at the top of the network detail page or the same button on the Subnets tab.
2. In the dialog that opens, enter the subnet name, CIDR, and gateway, and set DHCP, allocation pools, DNS, and host routes under Advanced if needed. The fields are the same as in the subnet table under Create a network above. You can check the subnet quota at the bottom of the dialog.
3. Click Create.

The new subnet appears on the Subnets tab of the network details. Each row's action menu has Edit and Delete, and you can also select several subnets and delete them at once with the delete button at the top of the tab.

Network details

Click a network name in the list to open its detail page. The top summarizes the status, ID, admin state, shared, external, and creation time, and the content below is split into tabs.

Tab	Contents
Details	Basic information: network name, availability zone, description (edit with the edit button on the right) Specifications: MTU, port security, external router or not, provider network type, segmentation ID
Subnets	The subnets in this network (name, CIDR, gateway IP, port count, creation time), plus creating, editing, and deleting subnets
Ports	The ports in this network, plus creating ports

Ports (Ports tab)

A port is the point (virtual NIC) where an instance, router, or load balancer attaches to a network. There is no separate sidebar menu for ports; manage them on the Ports tab of the network details. Some screens call a port a Virtual adapter.

Item	Description
Status	Port status
Name	Port name and ID. Shown as (no name) when the port has no name.
Attached to	The attached resource (instance, router, DHCP, and so on)
Security Groups	Security groups applied to the port
Fixed IP	The port's private IP
Floating IP	The associated Floating IP. Shows "-" when there is none.
MAC Address	Hardware address
Admin State	Admin state (Up/Down)
Created at	Creation time
Action	Menu opened by the button at the end of the row: Manage Security Groups, Edit, and Delete

Create a port

A port created in advance can be selected when you create an instance or associate a Floating IP.

1. Click Create port at the top of the Ports tab.
2. Fill in the two steps below, moving on with Next.

Step	What you enter
Basic information	Name (Virtual adaptor name, required), description, Fixed IP (choose a subnet; the address is auto-allocated or entered manually), and MAC address (Auto-allocate or Manual)
Security	Turn Port security on or off and choose the security groups to apply from the list. If the security group you need does not exist, you can create it with Create a new security group. This step can be skipped with Skip.

Port actions

The same actions are available from the action menu on each row and from the buttons at the top of the port details.

Action	Description
Manage Security Groups	Turn port security on or off and choose the security groups to apply. With port security off, no security groups are applied and anti-spoofing checks are also turned off.
Edit	Changes the port name and description.
Delete	Deletes the port. This cannot be undone and may affect the network connectivity of the attached resource.

Port details

Click a port name to open the port details. The top has the three buttons above, along with a summary of the status, ID, admin state, port security, and creation time.

Tab	Contents	What you can do
Details	Basic information: port name, description, admin state Owned network: network, fixed IP address, MAC address Attachment: bound device type, bound device QoS policy: policy name, egress/ingress bandwidth limits (shown only for ports with a policy applied)	Edit with Edit at the right of Basic information
Allowed address pairs	The additional IP (CIDR) and MAC addresses the port may use	Add with Create allowed address pair
Security Groups	The security groups applied to the port	Change with Manage Security Group; detach with Detach in the row menu