Chapter 3. Post-deployment IPv6 operations

Procedure

1. Source the overcloud credentials file:

   $ source ~/overcloudrc

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2. Create a network and subnet:

   $ openstack network create default --external --provider-physical-network datacentre --provider-network-type vlan --provider-segment 101
   
   $ openstack subnet create default --subnet-range 2001:db8:fd00:6000::/64 --ipv6-address-mode slaac --ipv6-ra-mode slaac --ip-version 6 --network default

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   This creates a basic neutron network called default.

Procedure

1. Create an external network and subnet:

   $ openstack network create public --external --provider-physical-network datacentre --provider-network-type vlan --provider-segment 100
   
   $ openstack subnet create public --network public --subnet-range 2001:db8:0:2::/64 --ip-version 6 --gateway 2001:db8::1 --allocation-pool start=2001:db8:0:2::2,end=2001:db8:0:2::ffff --ipv6-address-mode slaac --ipv6-ra-mode slaac

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   This command creates a network called public that provides an allocation pool of over 65000 IPv6 addresses for our instances.

2. Create a router to route instance traffic to the External network.

   $ openstack router create public-router
   $ openstack router set public-router --external-gateway public

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