Set up Networking Configuration

You must configure the networking options that Neutron can use and expose to the users of the OpenStack cloud.

You must be an administrator to perform this operation.

To set up the networking configuration, follow the steps given below.

  1. Log in to Clarity.
  2. Click Networks in the left panel.
  3. Click the Networking Config tab.
  4. Select the Enable Distributed Virtual Routing check box if you wish to enable Distributed Virtual Routing(DVR) mode.
  5. Enter the following details.

    Field Description
    DNS Domain Specify the DNS domain name for your organization. If the DNS domain is specified, a VM's FQDN is <vm_name>.<dns_domain_name>.
If not specified, the default OpenStack VM FQDN is host-<hyphen_separated_vm_ip_address>.openstacklocal.
    Number of DHCP Servers per Network Number of DHCP servers that you want to run in active-active mode per Neutron tenant network. This is useful for redundancy.
Note: If the number of authorized DHCP-capable hosts are lower than the number of DHCP servers per network specified, the number of DHCP servers per network will be equal to the number of available DHCP-capable hosts.
    DNS Forwarding Addresses List of DNS server IPs to which a request is forwarded if a DNS record is not found locally within the Neutron network.
    Network Type Select the type of networks you would like Neutron to support as well as the type of networks you would like Neutron to provide to self-service users for creating tenant networks (isolated networks).
Drag and arrange to specify the order in which the networks are chosen upon tenant network creation. All networks are used in the sequence specified.
    VXLAN VNID Range Specify one or more comma-separated VXLAN VNIDs and/or VXLAN VNID range(s). A range must be in the following format. <Start_range>-<end_range>.
You can assign VNIDs between 4096 to 16777214. The field is visible when you enable VXLAN for tenant network.
    GRE Tunnel ID Range Specify one or more comma-separated tunnel IDs and/or tunnel ID range(s). A range must be in the following format. <Start_range>- <end_range >. You can assign GRE tunnel ID between 1 to 4294967294.
The field is visible when you enable GRE for tenant network.
    Physical Network Config Label Specify one or more unique physical network config label entities corresponding to your data center networking infrastructure. Click Add a Physical Networking Config to add a physical network config label.
  6. Click Update.

The networking configuration is successfully updated.