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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve been trying for a few days to understand how this should work. My guest OS is Linux based, using ISC dhclient. In devstack I have configured an ipv6 net and subnet:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">[stack@localhost images]$ neutron net-show private6<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+---------------------------+--------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| Field | Value |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+---------------------------+--------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| admin_state_up | True |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| availability_zone_hints | |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| availability_zones | nova |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| id | 55170162-305e-4d04-a159-2a141f0cd685 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| mtu | 0 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| name | private6 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| port_security_enabled | True |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| provider:network_type | vxlan |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| provider:physical_network | |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| provider:segmentation_id | 1063 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| router:external | False |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| shared | False |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| status | ACTIVE |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| subnets | 4ea435ac-0ede-4dbc-9096-d97c256cc4d5 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| tenant_id | 9ede0af4cbe94caf8222b1dcfaac0754 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+---------------------------+--------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[stack@localhost images]$ neutron subnet-show private-subnet6<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+-------------------+--------------------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| Field | Value |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+-------------------+--------------------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| allocation_pools | {"start": "1:2:3:4::100", "end": "1:2:3:4::200"} |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| cidr | 1:2:3:4::/64 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| dns_nameservers | 1:2:3:4::2 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| enable_dhcp | True |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| gateway_ip | 1:2:3:4::1 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| host_routes | |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| id | 4ea435ac-0ede-4dbc-9096-d97c256cc4d5 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| ip_version | 6 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| ipv6_address_mode | dhcpv6-stateful |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| ipv6_ra_mode | dhcpv6-stateful |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| name | private-subnet6 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| network_id | 55170162-305e-4d04-a159-2a141f0cd685 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| subnetpool_id | |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">| tenant_id | 9ede0af4cbe94caf8222b1dcfaac0754 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">+-------------------+--------------------------------------------------+<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When running dhclient on the interface, however, I am only able to acquire the interface address, but not the interface default gateway. I suppose the default gateway should be obtained through dhcp6 rather than neighbor discovery, because
I set both <span style="font-family:"Courier New"">ipv6_address_mode and ipv6_ra_mode
</span>to<span style="font-family:"Courier New""> dhcpv6-stateful.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any ideas? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Andrei<o:p></o:p></p>
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