Neutron/IPv6

IPv6 Support in Neutron
The following specs are in progress and expected to land in Juno.
 * Provider Networking - upstream SLAAC Support
 * Support DHCPv6 stateless and stateful mode in Dnsmasq
 * Support Router Advertisement Daemon (radvd) for IPv6

TODO

 * Break feature parity blueprint into smaller blueprints
 * Improve documentation in Network manual, add more IPv6 examples
 * Eventually - transition all Network manual examples from IPv4 to IPv6 - as IPv6 deployment becomes more widespread

Blueprints
Search: Blueprints containing IPv6

Blueprint: IPv6 Feature Parity

Blueprint: Allow multiple subnets on gateway port

Blueprint: Support ICMP type filter by security group

Blueprint: Store both LLA and GUA on router interface port

Blueprint: Security group rule for IPv6 RA guard

Bugs
Bugs tagged IPv6

The following code reviews are in progress
Add support to DHCP agent for BP ipv6-two-attributes

Allow LLA as router interface of IPv6 subnet

The following reviews have already been merged
Create new IPv6 attributes for Subnets Ensure entries in dnsmasq belong to a subnet using DHCP

Calculate stateless IPv6 address

Permit ICMPv6 RAs only from known routers

Create new IPv6 attributes for Subnets by client

Make sure dnsmasq can distinguish IPv6 address from MAC address

Fix unshortened IPv6 address caused DHCP crash

Process ICMP type for iptables firewall

Trigger provider security group update for RA

Known Limitations in IPv6 Support
OpenStack Cloud Admin Guide - Ch7: Advanced config options - Limitations

VXLAN Overlay on IPv6 network not supported by OVS

Wiki for IPv6 Networking Manual
NEUTRON-IPV6-MANUAL