Interfaces

Objective

This guide provides instructions on how to create a Network Interface using the guided wizards in VoltConsole. For more information on Volterra site, see Volterra Site.

A Network Network Interface object represents the configuration of a network device in a fleet of Volterra Customer Edge sites. The following properties can be configured in this object:

  • IP address allocation scheme of the network interface (dhcp client or server)
  • Virtual Network of this network interface
  • Whether to run a DHCP server on this interface

    • Subnet to use for allocation
    • Default gateway
    • DNS server
    • Reservations

When DHCP address assignment (server) is enabled in the Network interface, external clients can get their addresses assigned from the configured subnet. The local interface can also get a dynamic address from the same pool if DHCP client is enabled in the network interface. Gateway and DNS servers for such clients can be external addresses or addresses internally allocated from the same subnet or may be disabled.

Using the instructions provided in this guide, you will be able to create a Network interface, with all its elements, and apply to your fleet.


Prerequisites

The following prerequisites apply:

Note: If you do not have an account, see Create a Volterra Account.

  • Volterra Gateway.

Configuration

The following video shows the network interface configuration:

Create a Network Interface

Perform the following steps:

Step 1: Log into the VoltConsole and start Network Firewall object creation.

Select Manage from the configuration menu in the system namespace. Select Networking -> Network Interfaces from the options. Click Add network interface.

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Figure: Network Interface Path

Step 2: Set interface type.

Go to interface config type section and select from the following:

Step 2.1: Select and create Ethernet interface.

Select Ethernet interface in the drop-down menu and click Edit.

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Figure: Ethernet Interface

  • From the sub-section Ethernet interface, configure a new interface as per the following guidelines:

    • For the Ethernet device section you can select your ethernet interface from the drop down menu or type a new value and click enter to select.
    • For the Cluster or specific node option,you can select between:
    • All nodes on the site - All the nodes on your cluster
    • Specific node - Specific node on your cluster
    • For the Untagged or VLAN Tagged option,you can select between:
    • Untagged - for no vlan ID
    • Vlan ID, and enter the vlan tag - for Vlan tagged traffic

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Figure: Ethernet Interface Configuration

  • From the sub-section IP configuration, chose from the drop down menu one of the following:

    • DHCP Client - IP Address from external DHCP server. No further configuration needed
    • DHCP Server, and click edit to configure the following:
    • DHCP Networks, and click edit to configure your DHCP Pool parameters:

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Figure: DHCP networks and pool configuration

  • Network prefix method

    • Network prefix (eg: 192.168.11.0/24 as per the picture above)
  • DHCP Pool settings

    • Include or exclude addresses from range - Specify the range (eg: Start- 192.168.11.100, end- 192.168.11.200 as per the picture above)
  • Select default gateway address:

    • First address of the pool - First IP address from the Network prefix configured above
    • Last address of the pool - Last IP address from the Network prefix configured above
    • Configured specific address - configure a specific value to the default gateway (must be from within the network defined on the network prefix section)
  • Select DNS server address:

    • Default gateway address - DNS is the IP address of the default gateway (Volterra Node)
    • Configured specific address - configure a specific value to the DNS Server
  • Interface address - Interface address to be assigned to the Volterra Gateway node's interfaces (must be from the networks defined in the DHCP server network prefix)

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Figure: Interface Address

  • Automatic Start - Assign from start of the first network in the list
  • Automatic End - Assign from the end of the first network in the list
  • Configured - Configured address for every node
  • Fixed IP address assignment - Reserve fixed IP addresses to be allocated to devices with specific MAC address

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Figure: Fixed IP Assignment

  • Static IP - To assign a static IP address to your new interface

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Figure: Static IP Assignment

  • IP address / prefix length - IP address for this interface / prefix length
  • Default gateway - default gateway to route to other networks
  • DNS Server - DNS Server for DNS resolution
  • From the sub-section Virtual Network, select from the drop down menu is this interface belongs to:

    • Site Local Network (Outside) - Outside Network
    • Site Local Network Inside - Inside network

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Figure: Virtual Network Configuration

  • From the sub-section Common configuration, you can optionally configure the following options:

    • MTU - Maximum MTU for this interface
    • Priority - Priority for this interface (bigger value means higher priority)

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Figure: Common configuration

Step 3: Complete creating the network interface.

Click Save and exit to finalise the configuration of your network interface.