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On 05/29/2015 09:59 PM, Suresh Ramamurthy wrote: > Hi Wido, > > After reading your IPv6 ideas for Basic Networking, I realized that > couple of them can be reused for Advanced Networking too. > Great! Like which parts? I guess there is a big overlap between Advanced and Basic networking. > We have come up with a proposal for IPv6 support in VPC and it is > posted in wiki > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/IPv6+in+VPC+Rou ter > > Did you get a chance to look at it? Let me know your feedback on > the DD. > No, I didn't, but I really should! > I work from bay area, so I will not be able to attend the meetup > at Amsterdam. But, I would like to have a call/chat with you to > discuss on further details about IPv6 support. > > I would like to schedule a conference call with you. Would you be > available for the call? > Yes, that seems like a good idea. I'm heading off on vacation and it won't be until around June 20th before I'll be available. Wido > Thanks, Suresh > > > > On Sat, May 23, 2015 at 11:18 PM, Remi Bergsma > <rberg...@schubergphilis.com> wrote: > >> At Schuberg Philis we’ve been working on a design voor IPv6 in >> VPC networks (so this is Advanced Networking) and I indeed had a >> look at your functional spec. I’ll finalise what we’ve come up >> with and publish it early next week so we can align and discuss >> and work from there. Nice to see there is a design for Basic >> Networking as well! >> >> Regards, Remi >> >>> On 24 May 2015, at 02:47, Marcus <shadow...@gmail.com> wrote: >>> >>> Did you guys review the functional spec that has been floating >>> around on cwiki? On May 23, 2015 8:27 AM, "Wido den Hollander" >>> <w...@widodh.nl> wrote: >>> > > > On 05/22/2015 11:05 PM, server24 Cloudstack wrote: >>>>>> Hi Wido, >>>>>> >>>>>> was nice talking to you about this. >>>>>> >>>>>> On 5/21/2015 8:59 PM, Wido den Hollander wrote: >>>>>> >>>>>>> (IPv6) routers should send out RAs (Router >>>>>>> Advertisements) with the managed-other-flag [0][1], >>>>>>> telling Instances to ONLY use that routers as their >>>>>>> default gateways and NOT to use SLAAC to autoconfigure >>>>>>> their IP-Address. >>>>>> >>>>>> OK, so no autonomous flag >>>>>> > > No, the "managed other flag" as described in RFC 4862. Meaning > that the Routers should only be used as a default gateway and > DHCPv6 should be used for obtaining a address. > >>>>>>> The (ip6tables) Security Groups should allow ICMPv6 by >>>>>>> default. IPv6 traffic breaks really hard without ICMPv6 >>>>>>> traffic, for example PMTU doesn't work properly and >>>>>>> breaks IPv6 connections. >>>>>> yes, and default ip(6)tables should be in place to block >>>>>> VNC-related traffic except to the Virtual Console (as >>>>>> currently VNC ports on IPv6 are world-wide-open in BASIC >>>>>> network)! >>>>>> > > Yes, but in that case you are talking about the Console Proxy > which should be firewalled properly. > >>>>>>> In CloudStack we might configure a /48, but tell it to >>>>>>> hand out addresses for each instance from a /64 out of >>>>>>> that /48. That means we can have 65k Instances in that >>>>>>> pod. Some firewall policies block a complete /64 when >>>>>>> they see malicious traffic coming from that subnet, so >>>>>>> if the subnet is big enough we should try to keep all >>>>>>> the IPv6 addresses from one Instance in the same /64 >>>>>>> subnet. This could also simplify the iptable rules. >>>>>> so one /48 per pod? RIRs provide either /48 or /32 (the >>>>>> latter to the providers) IPv6 blocks. So this should then >>>>>> be configurable, both per instance and per pod. One /48 >>>>>> per pod still looks large to me.. >>>>>> > > A /48 should be a possibility. If you only have a /64 available > that should be no problem either. > >>>>>> On the other hand any prefix more specific than /64 could >>>>>> break IPv6 features, so that there are at least some >>>>>> practical values to rely on. >>>>>>> Security grouping has to be extended to also support >>>>>>> IPv6, but should allow ICMPv6 by default. >>>>>> yes, ICMPv6 should be on by default (maybe it should be >>>>>> forced to be always on for IPv6?). >>>>>> >>>>>>> At the end of June 2015 we want to keep a one-day >>>>>>> meetup in Amsterdam with various developers to discuss >>>>>>> some more details. >>>>>> >>>>>> great work and very good meeting, was a pleasure to be >>>>>> there. >>>>>> >>>>>> Thomas Moroder >>>>>> >>>>>> -- Incubatec GmbH - Srl Via Scurcia'str. 36, 39046 >>>>>> Ortisei(BZ), ITALY Registered with the chamber of >>>>>> commerce of Bolzano the 8th of November 2001 with REA-No. >>>>>> 168204 (s.c. of EUR 10.000 f.p.u.) President: Thomas >>>>>> Moroder, VAT-No. IT 02283140214 Tel: +39.0471796829 - >>>>>> Fax: +39.0471797949 >>>>>> >>>>>> IMPRINT: http://www.incubatec.com/imprint.html PRIVACY: >>>>>> http://www.server24.it/informativa_completa.html >>>>>> >>>> >> >> > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVb0k4AAoJEAGbWC3bPspC484P/2AsM2ylxNkWF0kfDcirOFC1 /BQGjZYBJ5gozHt9U/UkJcba/jwCIZYO9ZzMZ7q3jxXWATXkFLrPkcnMf6LJmkgz 9hEkgU0109n66dK37gL5oslPVaLgYAPOPJS0A6O7iw2LEifIzTSDk5JnANAykTNc waY39Zr3RPqAI78VQRzbgIXNzEC7j2C0RACHO+dzz1r5CM3x2TxqjkR26dfJ4FNV gZ/A0ijtotgtV93Fg8DlutyyRhy3kwdmAGVzqaq4Iw2dC5+kM40CUlp2d4tbDBVc hqdoAGkgFUuEKq9F4Cv1INjNDsBi7tgQA5G86QLANvGYeVg8YJC4avgNTCz/kezx tTtWSiWtdHqDK7LPji6YNA8KvoCj3hBAguSSZ1T0W89cl9vuYVR9j3e28XpgXWEy 9rXlF0IBGMkeJngtO+9CzbJA48FN1V3gB6Y51InuyuzhFu7Y3qoMm5KxNNhW5PgA a6aeatpQ/foxedZHUoMaGDRtI03mhDqG243YQHGr2U64AfmGwUyy9tdu+xFaYLiP xahnWNIWenB3bZpOrlJ6PTJMS4gQ4EmKZYgMOrNQMoTG0jNotd+z2QXZfBRL7Ur5 PyCJHYk1AXQGenX85tSPPzQbZbpB/bRMd7UHZ82tUUsMUN+MpNEdJvRse+WLgiz1 3KgiOzv7hnyNNvcrUBZj =Dqac -----END PGP SIGNATURE-----
