Openstack allows you to create networks addressed with IPv6. SkyHiGh is configured with global routable IPv6 prefixes, and this article is about to explain how you can create a virtual network with global routable IPv6 addresses.
Using the web interface
Unfortunatley this is currently only possible using the command line clients.
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| Code Block |
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| language | bash |
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| title | Add external routing to IPv6 subnetVerify the configuration |
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| linenumbers | true |
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eigilo@access:~$ openstack subnet show DemoNet-v6
+-------------------+--------------------------------------------------------------+
| Field | Value |
+-------------------+--------------------------------------------------------------+
| allocation_pools | 2001:700:1d00:e88a::2-2001:700:1d00:e88a:ffff:ffff:ffff:ffff |
| cidr | 2001:700:1d00:e88a::/64 |
...
| gateway_ip | 2001:700:1d00:e88a::1 |
| host_routes | |
| id | 7b242c30-40e2-4727-83d7-18e5bbe18a8a |
| ip_version | 6 |
| ipv6_address_mode | slaac |
| ipv6_ra_mode | slaac |
| name | DemoNet-v6 |
...
+-------------------+--------------------------------------------------------------+
|
Configuring incoming access over IPv6
After an IPv6 subnet is created it is important to update the access groups if one wants to allow external access to the virtual machines over IPv6.
Allow incoming SSH
To allow any host at NTNU in Gjøvik to log in to your virtual machines over SSH you would need to add the following rule to the security-group assigned to the VM:
| Code Block |
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| language | bash |
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| title | Allow incoming SSH |
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| linenumbers | true |
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