Open Stack

I’ll take this one a step further.  I think one of the methods for getting (non-NAT) floating IPs in IPv6 would be to push a new, extra address to the same port.  Either by crafting an extra, unicast RA to the specific VM or providing multiple IA_NA fields in the DHCPv6 transaction.  This would require multiple addresses to be allowed on a single MAC.
-Anthony

From: Martinx - ジェームズ <thiagocmartinsc at gmail.com<mailto:thiagocmartinsc at gmail.com>>
Reply-To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Date: Thursday, May 15, 2014 at 14:18
To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Subject: Re: [openstack-dev] [Neutron][IPv6] Privacy extension

Hello!

I agree that there is no need for Privacy Extensions in a Cloud environment, since MAC address are fake... No big deal...

Nevertheless, I think that should be nice to allow 1 Instance to have more than 1 IPv6 addr, since IPv6 is (almost) virtually unlimited... This way, a VM with, for example, a range of IPv6s to it, can have a shared host environment when each website have its own IPv6 address (I prefer to use IP-Based virtualhosts on Apache, instead of Name-Based)...

Cheers!
Thiago


On 15 May 2014 14:22, Ian Wells <ijw.ubuntu at cack.org.uk<mailto:ijw.ubuntu at cack.org.uk>> wrote:
I was just about to respond to that in the session when we ran out of time.  I would vote for simply insisting that VMs run without the privacy extension enabled, and only permitting the expected ipv6 address based on MAC.  Its primary purpose is to conceal your MAC address so that your IP address can't be used to track you, as I understand it, and I don't think that's as relevant in a cloud environment and where the MAC addresses are basically fake.  Someone interested in desktop virtualisation with Openstack may wish to contradict me...
--
Ian.


On 15 May 2014 09:30, Shixiong Shang <sparkofwisdom.cloud at gmail.com<mailto:sparkofwisdom.cloud at gmail.com>> wrote:
Hi, guys:

Nice to meet with all of you in the technical session and design session. I mentioned the challenge of privacy extension in the meeting, but would like to hear your opinions of how to address the problem. If you have any comments or suggestions, please let me know. I will create a BP for this problem.

Thanks!

Shixiong


Shixiong Shang

!--- Stay Hungry, Stay Foolish ---!


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