Manage public networks

Introduction to public networks

Public Networks allow the users of virtual datacenters to use Internet addressable public IP addresses in their virtual infrastructure. Users purchase or reserve public IPs for their enterprises in Virtual datacenters view. Public networks are not assigned to any specific enterprise in Abiquo and they cannot be set as the default network for an enterprise. They can be set as the default network for a virtual datacenter, but make sure that you have made enough public IP addresses available to the users and that the users have reserved enough public IP addresses for their VMs.

Display public networks

To display public networks:

1. Go to Infrastructure → Private → select datacenter → servers view → Networks → Public

You can filter the list using the search boxes above the Networks list. You can scroll through the network list using the page number and arrow buttons at the bottom of the list. And you can search for text to filter the list by network names.

On the right side of the screen, in the Public IPs pane, you will see details of the IPs of the selected network.

• To sort by a column, click in the header of the column.

• To filter the results by any field, use the Search button.

• To navigate through the pages, use the page scroll

Create public networks

Before you begin:

• Obtain the network details from your Network Administrator

  • For NSX-T obtain the provider ID, which is the network path

  • For other systems, obtain the network address, network mask and tag, gateway, and so on

To create a public network do these steps:

1. Go to Infrastructure → Private → select datacenter → servers view → Networks → Public 

2. Click the + add button at the top of the Networks list 

3. For NSX-T, first select the Device
   

   

Field	Value
Name	The name of the public VLAN with up to 128 characters
IPv6	To create an IPv6 network, select this checkbox
Strict	For IPv6 networks only. If you select Strict, the platform will automatically generate EUI64 IP addresses.
Address	The network address of the VLAN
Netmask	The network mask in CIDR format. For IPv4, the value can be from 16 to 30 inclusive, and for IPv6, enter a value of 64, 56, or 48
Gateway	The gateway of the network that must be within the range defined by the network address and the network mask
Tag*	Enter the VLAN or VXLAN tag to use for this network
Check	Click to check tag availability for all the racks of the Abiquo datacenter. Green: available Yellow: in use by other networks but can be reused Red: not available because it is excluded by rack configuration.
Network service type	Choose the Network Service Type, which assigns the network to network interfaces on the hypervisors
Device	Optional device that defines a network virtualization system that will manage the IP addresses of this network. They may be assigned using its DHCP service. Ensure that VMs deployed on this network allow traffic to the appropriate ports for a DHCP connection.
Primary DNS	Address of the primary DNS
Secondary DNS	Address of the secondary DNS
DNS suffix	The default DNS suffix
Restricted	Select to create a Restricted network so that users require privileges to Attach NICs in restricted networks and/or Detach NICs from restricted networks
Excluded from firewall	Select Excluded from firewall to define a network where VM firewalls will not apply
Static routes	Click "Manage" to add and modify static routes.
Provider ID	For NSX-T public networks, enter the path to the Tier 0 segment in the NSX-T system.

For NSX-T, you can register a network that your network administrator created in NSX-T.

• Abiquo will reserve the first 20 addresses of this network for load balancers

  • You cannot use a reserved address for a DHCP server

After you select the Device (nsxt-device), enter the Provider ID and select the Network service type.

Create static routes

Create IP addresses

To add IP addresses to your network:

1. Go to Infrastructure → Private

2. Select a datacenter

3. Go to Network → External or Public

4. Click the + add button at the bottom of the list

5. Complete the dialog

Enter the Number of IPs to create and the From IP address (the first in the range). The From IP address must be a new address that does not already exist in the network. After creating the first IP address, the platform will try to create the other IPs and it will skip any existing IP addresses. 

For example, if you have IP addresses in network 30.30.30.30, which are 30, 33, and 34 and then you request 3 new IPs from 30.30.30.31. The new IPs created should be as follows: 31, 32, 35. 

When you add IPv6 addresses on strict networks, you don't need to set the starting address. On non-strict IPv6 networks, Abiquo recommends that you create an automatic IP address, or you can enter a From IP address manually.

Make IP addresses available

After you create public or external IP addresses, they will be available to users for their virtual datacenters.  

We recommend that you should make unavailable any IP addresses that will be used for administration purposes, for example, the IPv4 gateway network address.

To edit the available IP addresses:

1. Go Infrastructure → Private

2. Select datacenter → Network → select network type

3. Click Available IPs

4. The Edit network dialog for Available IPs will open and by default, all IPs are in the Available column

• To move an IP, select it and click a single arrow button

• To move all IPs in the direction of the arrows, use the double arrow buttons

Set the default network for a virtual datacenter

Each virtual datacenter requires a default network. If you deploy a VM without assigning a NIC, the platform will add one from the default network. You cannot unselect the default network, instead you must assign a new default network to replace it.

To set a network as the default, you will require privileges to access this network in the virtual infrastructure.

To assign a network as the default for a virtual datacenter do these steps:

1. Go to Virtual datacenters → select virtual datacenter → Network → network type, e.g. Private

2. Create or edit a network

3. Select the Default network checkbox 

   • This default will override the platform default network and any network set for the enterprise in the datacenter

   • The new default network will apply to all VMs deployed after you set it

   • For a public network that is the virtual datacenter default, obtain IP addresses for your VMs before you deploy

Edit a public network

To edit the Network Information for the public network

1. Go to Infrastructure → Private → select a datacenter → Network → Public

2. Edit the public network

When you edit a public network, you can change some or all of the following fields, depending on whether you have VMs deployed in the network or not.

You can modify these fields at any time but the changes will only apply to VMs deployed after you make the changes.

Delete a public network

Before you begin, check that there are no enterprises that have purchased IP addresses from this network. You cannot delete a public network if any of its IP addresses are purchased, reserved, or in use. You cannot delete a public network that is the default for a virtual datacenter.

To delete a public network:

1. Go to  Infrastructure → Private → select a datacenter → Network → Public

2. Select the public network

3. Click the delete button

Put an IP address on a deny list

In private cloud, to prevent tenants from obtaining and/or using an IP address, you can quarantine it, which is similar to putting it on a deny list.

To change quarantine status:

1. Select one or more IP addresses

2. Click the quarantine (!) symbol and confirm

Selected IPs that were not in quarantine will be put into quarantine. Selected IPs that were already in quarantine will be removed from quarantine. 

 Click here to show/hide the screenshot

Pages related to public networks

• Manage networks in virtual datacenters