13.5. Managing IP Pools

On the IP Pools screen (accessible by clicking Resource Library > IP Pools on the menu), you can review and manage IP address pools for virtual environments. An IP pool is a range of configured IP addresses, either IPv4 or IPv6, that can be automatically allocated to virtual environments hosted on one or several physical servers registered in Virtuozzo Automator.

13.5.1. Reviewing IP Pools

The Summary tab provides you with general statistics about the IP pools created for virtual environments:

  • the total number of IP pools created for virtual environments;
  • the number of enabled and disabled IP pools;
  • the total number of IP addresses belonging to the IP pools;
  • the number of leased and free IP addresses.

The table on the IP Pools tab presents detailed information on the IP pools currently created in Virtuozzo Automator:

Column Description
Name The name of the IP pool.
Description The description of the IP pool.
IP Address Ranges The range of IP addresses, IPv4 or IPv6, belonging to the IP pool.
Assigned Hardware Nodes The physical servers assigned to the IP pool.
Enabled This column shows whether the IP pool is enabled or not.

You can filter the IP pools shown in the IP Pools table. To do that, click Show Search, enter search patterns in the search fields, and click Search. To change what search fields are displayed, click Customize. To have the full list of IP address ranges back, click Reset Results. To show or hide columns, click Select Columns and set or clear the respective checkboxes.

To disable an IP pool, click the IP pool name displayed in the Name column. When the IP pool configuration screen appears, click the Configure icon in the Tasks section, clear the Enabled check box, and click Save.

To create a new IP pool, click the New IP Pool icon.

13.5.2. Creating New IP Pool

The New IP Pool page enables you to create a new IP address pool.

Determine the name of the new IP pool and provide a description if needed.

IP Address Ranges

Determine the range of the IP addresses, IPv4 or IPv6, for the IP pool. You can create several ranges. To do that, click the icon with the green plus, that is located on the right from the Range Mask field. If you changed your mind and decided to delete one of the pools, just click the icon with the red cross opposite the pool you no longer need. In the Range Mask field, specify the mask that would define the IP address.

In the First IP Address field, type the address from which the IP range will start.

In the Last IP Address field, type the final address that will end up the range of all available IP addresses.

Network Interface Settings

To set up the connection between the virtual environment and the network, specify the network interface settings. Specify the network, gateway parameters and DNS Server IP addresses of the appropriate network interface which IP addresses will be used.

Assigning Hardware Nodes

In this subsection, you can specify the physical servers that will use the IP addresses from this pool. You can add or remove the physical servers by using the corresponding buttons below the table.

Having specified all the parameters, click Save.

13.5.3. Viewing Leased IP Addresses

13.5.3.1. IP Addresses from All IP Pools

The Leased IP Addresses screen list the IP addresses from all IP pools that have been already assigned to the virtual environments (either during the virtual environment creation or while configuring these virtual environments afterwards). You can access the screen by clicking the IP Pools menu from the Left menu tree and then switching to the Leased IP Addresses tab.

The information on the leased IP addresses is presented in the table having the following columns:

Column Description
Hardware Node The physical server hosting the virtual environment with the specific IP address.
Virtual Environment The virtual environment to which the IP address is assigned.
IP Address The leased IP address.
IP Pool The IP pool to which the IP address belongs.

You can filter the leased IP addresses shown in the Allocated Ranges table. To do that, click Show Search, enter search patterns in the search fields, and click Search. To change what search fields are displayed, click Customize. To have the full list of leased IP addresses back, click Reset Results. To show or hide columns, click Select Columns and set or clear the respective checkboxes.

13.5.3.2. IP Addresses from Specific Pool

The Leased IP Addresses screen list the IP addresses from a specific IP pool that have been already assigned to the virtual environments (either during the virtual environment creation or while configuring these virtual environments afterwards). To access the screen, choose the IP Pools menu from the left menu tree, switch to the IP Pools tab and choose the IP pool which IP addresses you need to view. Switch to the Leased IP Addresses tab.

The information on the leased IP addresses is presented in the table having the following columns:

Column Description
Hardware Node The physical server hosting the virtual environment with the specific IP address.
Virtual Environment The virtual environment to which the IP address is assigned.
IP Address The leased IP address.

You can filter the leased IP addresses shown in the Allocated Ranges table. To do that, click Show Search, enter search patterns in the search fields, and click Search. To change what search fields are displayed, click Customize. To have the full list of leased IP addresses back, click Reset Results. To show or hide columns, click Select Columns and set or clear the respective checkboxes.

13.5.4. Viewing IP Pool Summary Information

The Summary tab of the IP Pool Configuration screen provides you with the summary information on the selected IP pool and allows you to perform some main operations. To access this screen, choose IP Pools from the left menu tree, switch to the IP Pools tab and click the IP pool name in the list.

General Settings

The subsection shows the IP pool name, description (if any) and the status (enabled or not). The enabled status of the IP pool indicates that the pool can be used for the IP addresses allocation.

The IP pool status can be changed on its configuration screen. To this effect, click Configure in the Tasks subsection.

IP Addresses Ranges

The subsection shows the IP address ranges assigned to this IP pool. The number of ranges and the number of IP addresses they include can be changed on the IP pool configuration screen. To this effect, click Configure in the Tasks subsection.

Network interface Settings

The subsections shows the IP pool network settings. The settings can be changed on its configuration screen. To this effect, click Configure in the Tasks subsection.

Assigned To

The subsection shows the hardware nodes the IP pool is assigned to (if assigned).

Tasks

The subsections lists the actions available for this IP pool:

  • Configure. Click this link to open the IP pool configuration screen and to change any of the IP pool settings.
  • Delete. Click this link to delete the IP pool from the infrastructure.

IP Addresses Summary

The subsection shows the statistics of the leased and free IP addresses of this IP pool. By clicking the leased link, you open the list of the IP addresses within this IP pool and assigned to virtual environments.

13.5.5. Changing IP Pool Configuration

The Configure screen allows you to change the current settings of the chosen IP pool. To access this screen, choose IP Pools from the left menu tree, switch to the IP Pools tab, click the IP pool name in the list and click the Configure link in the Tasks subsection.

General Settings

In this subsection, change the IP pool name or description using the Name and Description fields, respectively. Note, that the IP pool name should be unique and descriptive.

Tick the Enabled check box to make the IP pool’s addresses available for the distribution to the virtual environments.

IP Address Ranges

In this subsection, change the number of IP ranges by adding new or deleting obsolete ones. To add a new range, click the green plus icon. To delete a range, click the red cross icon beside the range you want to delete. Having added a new range, you should specify the first and the last IP addresses within this range. You can also change the first and the last IP addresses of an existing range.

  • Type the IP address with which the new range will start in the First IP Address field.
  • Type the IP address that will close the range of addresses in the Last IP Address field.

Network Interface Settings

In this subsection, change the network interface settings. These settings are responsible for the connection between the virtual environments. Specify the network, gateway parameters and DNS Server IP addresses of the appropriate network interface which IP addresses will be used.

Assigning Hardware Settings

In this subsection, you can specify the physical servers that will use the IP addresses from this pool. You can add or remove the physical servers by using the Add and Remove Selected buttons, respectively.

Having specified the parameters, click Save.