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Abiquo 4.5

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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. Click in the header of a column to sort by that column, use the Search button to filter the results by any field and navigate through the pages with the page scroll. 

Create public networks

Before you begin:

  • Obtain the network address, network mask and tag, and other network details from your Network Administrator

To create a public network do these steps:

  1. Go to Infrastructure → Prviate → select datacenter → servers view → Networks → Public 
  2. Click the add button  at the top of the Networks list and complete the dialog.

Field

Value

Name

The name of the public VLAN with up to 128 characters

IPv6To create an IPv6 network, select this checkbox
StrictFor 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 typeChoose the Network Service Type, which assigns the network to network interfaces on the hypervisors
DeviceOptional 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

RestrictedSelect 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 firewallSelect Excluded from firewall to define a network where VM firewalls will not apply

Static Routes

Click "Manage" to add and modify static routes.

Configure static routes for public networks

The platform will configure the static routes in VMs using the network configuration method. So it may not always be possible to update the static routes in a deployed VM.  If you are using DHCP to configure VMs, changes to static routes will be received by the VMs when they reconnect to the DCHP server; for example, after they are restarted.

To add a Static Route:

  1. Click the Define checkbox. 
  2. Enter the details of the static routes. For example, to add a static route to the network/netmask 1.1.1.0/24 via the gateway/next hop 192.168.0.250, you would enter the details in the table below.

    Configure static routes for Abiquo networks

    Field

    Description

    Example

    Netmask

    Destination network mask

    255.255.255.0

    Network ID

    Destination network or host

    1.1.1.0

    Gateway IP

    Next hop (on your network)

    10.10.10.100

  3. Click Add and then Save the network

Add IP Addresses

The platform pre-creates the gateway address for IPv4 networks.

To add IP addresses to your network, click the + Add button in the top right-hand corner of the Networks page.

Enter the number of IPs and the first IP address in the range. The first 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. 
IP Addresses
30.30.30.30
30.30.30.31
30.30.30.32
30.30.30.33
30.30.30.34
30.30.30.35
 Click here to show/hide IPv6 details

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 an IP address manually as shown here.

Make IP Addresses Available

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

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

Public or NAT IPs that have been purchased or reserved by the users of an enterprise will not display in the Available list and you cannot make these IPs unavailable.

To edit the available IP addresses:

  1. Go Infrastructure → Private → select datacenter → Servers view → Network → select network type
  2. Click the Available IPs link in the top right-hand corner of the IPs page
  3. The Edit network popup for Available IPs will open and by default, all IPs will be in the Available column
  • To move an IP, select it and click a single arrow button
  • To move all IPs from one column to the other column, use the double arrow buttons to move in the direction indicated by the arrows

Make a Public Network the Default for a VDC

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

  1. Open the virtual datacenter at the network tab
  2. Select the public network and click the edit button
  3. Select the Default network checkbox 
    • You cannot edit any other fields
    • This default will override the platform default network and the network set for the enterprise in the datacenter

Edit Network Information

To edit the Network Information for the public network, select it in the Networks list on the Public page. Then click the edit button above the Networks list. 



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

FieldDescription

Name

The name of the public network

GatewayIPv4 only. The gateway of the network. Make sure the gateway is an IP address inside the range defined by the network address and the network mask

Tag*

The VLAN tag to use for this VLAN. Abiquo recommends that you check the tag for availability. Green: tag available. Yellow: tag already in use but can be shared. Red: tag excluded from use in the rack.

Network service typeThe Network Service Type, which represents a Network Interface on the hypervisors. Configure Network Service Types when you configure physical machines. Must be configured in the switch for use with VLANs. Cannot be changed when there are deployed VMs in the network
DeviceThe device pointing to the network virtualization system to use for SDN
RestrictedMark this checkbox to restrict this network so that when editing VMs, only users with the privileges to Attach NICs in restricted networks and/or Detach NICs from restricted networks can work with IPs in these networks
Static routesSelect Define to edit static routes for the network

You can modify these fields at any time but the changes will only apply to virtual machines deployed after the changes are made.

FieldDescription

Primary DNS

The address of the primary DNS server for your network

Secondary DNSThe address of the secondary DNS server for your network

DNS suffix

The DNS suffix for your network

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 or in use. To delete a public network, select it in the Networks list on the Public page and press the Delete button  and the public network will be deleted.


How to Put an IP on a Black List

Occasionally a user may misuse a Public IP and DNS providers may block it. Abiquo also enables you to quarantine IPs. This prevents another enterprise from reserving this IP and attaching it to another VM. Just select the problem IPs and click the Quarantine button on the top right-hand side of the IP list. This will toggle the current state of each IP address to or from quarantine. The following screenshot shows a network with two addresses selected. Clicking the ! button will put the first address into quarantine and remove the second address from quarantine. 


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