Parallel session: IPv6

Parallel session I: IPv6

Chair: Tim Chown

Please switch your mobile phones to silent

19:30

No fire alarms scheduled. In the event of an alarm, please follow directions of NCC staff

Dinner (now full)Entrance via Goldsmith Street

16:30 - 17:30

Birds of a feather sessions

15:20 - 16:00

Lightning talks

Imperial College IPv6 deployment

Phil Mayers, Imperial College London

jisc.ac.uk

Phil Mayers,Imperial College London

IPv6 deployment around the world

Mat Ford, ISOC

Internet Society © 1992–2016

World IPv6 Launch and beyondIPv6 Deployment Around the World

Mat FordTechnology Program Managerford@isoc.org

12th April 2017

Presentation title – Client name 38

Founded in 1992 by pioneers of the early Internet, the Internet Society drives

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The Internet Society at Work

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Our Partners

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The Internet Society cannot achieve its goals alone.Because the Internet impacts all of us, we work with partners of all shapes and sizes to address the wide range of social, economic, and policy issues. Our partners include:• International bodies and assemblies• Local non-governmental organizations• Technical experts and engineers • University and academic institutions • Local and global businesses • Rural or urban students and teachers 

IPv6 Deployment

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IPv6 Deployment Around the World• Web content• Network operators from the outside• Network operators from the inside• Per country and global perspectives• DNS• Comparative performance• Predicting the future• Focus on Janet

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Measuring IPv6Measuring Web content

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Measuring IPv6 adoption. By: Jakub Czyz, Mark Allman, Jing Zhang, Scott Iekel-Johnson, Eric Osterweil, Michael Bailey. Appears in: CCR August 2014.

Measuring IPv6Measuring Web content

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Measuring IPv6Measuring network operators from the outside – Akamai

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Measuring IPv6Measuring network operators from the outside – Akamai

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Measuring IPv6Measuring network operators from the outside – Akamai

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Measuring IPv6Measuring network operators from the outside – Akamai

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Measuring IPv6Measuring network operators from the outside – APNIC

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Measuring IPv6Measuring network operators from the outside – World IPv6 Launch

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Measuring IPv6Measuring network operators from the outside – World IPv6 Launch

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Measuring IPv6

• Martin Gysi of Swisscom wrote for us in 2014• At that time, 35% of subscribers were IPv6-capable• 8.5% of peak traffic was IPv6

• Presentation on IPv6 deployment at Swisscom in mid-2015• 67% of subs dual-stacked• >20% of traffic was IPv6• 31% of IPv6 user’s traffic was IPv6 (mostly Google)

• Sky: (Oct 2016) 25%-35% of dual-stack subscriber traffic is IPv6• EE: 50%+ of dual-stack mobile subscriber traffic is IPv6

Measuring network operators from the inside

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Measuring IPv6Measuring countries – Google

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Measuring IPv6Measuring countries – Google

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Measuring IPv6Measuring countries – Akamai

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Measuring IPv6Measuring countries – Akamai

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Measuring IPv6Measuring countries – APNIC

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Global IPv6 deployment, as measured by the relative capability to use IPv6

Measuring IPv6Measuring countries – APNIC

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Use of IPv6 worldwidehttp://stats.labs.apnic.net/ipv6/XA

Measuring IPv6Measuring countries – methodologies compared

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Measuring IPv6

• Around one third of the Internet’s user population invoke DNS resolvers that are capable of using IPv6 to resolve a DNS name

• Half of those users are invoking Google, AT&T and Comcast• “The DNS is well on the path of transition and perhaps further along this path

than all the other elements of the Internet’s infrastructure.” (https://labs.ripe.net/Members/gih/ipv6-and-the-dns)

• As of October 2016, all DNS root servers are IPv6-enabled

Measuring the DNS

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Geoff Huston, APNIC

Measuring IPv6Measuring the DNS – h.root-servers.net

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Measuring IPv6

• Facebook have described controlled A/B tests that show IPv6 to be 15% faster on average for devices on mobile networks in the US, with some devices showing even better results.

• Measurements using Akamai’s RUM system have also shown measurable performance improvements for IPv6 connections from US mobile networks.

• At the last UK IPv6 Council meeting, Sky presented measurements that show on average a slight performance benefit for IPv6 over IPv4.

Measuring performance

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https://blogs.akamai.com/2016/10/ipv6-at-edge-2016.html

Measuring IPv6Projecting the future – when will IPv6 overtake IPv4?

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Scott Hogg, Infoblox

Martin Gysi, Swisscom

Measuring IPv6Another vantage point – AMS-IX

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JanetWorld IPv6 Launch Measurements

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Janet

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APNIC’s view

JanetAkamai’s view

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Janet

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IPv6 in UK Higher Education

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https://www.vyncke.org/ipv6status/detailed.php?country=gb&type=Edu

Checking individual institutionsreading.ac.uk

IPv6 Deployment Around the World – Networkshop45 75https://ip6.nl/#!reading.ac.uk

www.mythic-beasts.com/ipv6/health-check?domain=reading.ac.uk

Measuring IPv6

• IPv6 is real, deployments not everywhere, but in a lot of networks and countries now

• IPv6 DNS is very real• Centralisation of hosting/DNS is helping speed up deployment in some cases• Web content is growing slowly -> needs to be much more pervasive• When deployments happen, they can happen fast• IPv6 is dominant protocol in some cases• IPv6 is faster in some cases• Interconnection and/or deployment quality is problematic in some cases• Different vantage points and methodologies yield different results• IPv6 will be dominant protocol for many (more) operators in 2 – 3 years• Lots of work still to do for many UK higher ed institutions

Conclusions

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Sources

World IPv6 Launch: http://www.worldipv6launch.org/measurements/

Akamai: https://www.akamai.com/uk/en/our-thinking/state-of-the-internet-report/state-of-the-internet-ipv6-adoption-visualization.js

p

APNIC: http://stats.labs.apnic.net/ipv6/ + http://stats.labs.apnic.net/v6perf

Google: https://www.google.com/intl/en/ipv6/statistics.html

Eric Vyncke: http://www.vyncke.org/ipv6status/

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Visit us atwww.internetsociety.orgFollow us@internetsociety

Galerie Jean-Malbuisson 15, CH-1204 Geneva, Switzerland.+41 22 807 1444

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Thank you.Matthew FordTechnology Program Managerford@isoc.org

IPv6 Deployment Around the World – Networkshop45 78

jisc.ac.uk

Mat FordISOC

IPv6 address planningEmma Cardinal-Richards, Network architect,

University College London

03/05/2023

About UCL

»Approximately 38,000 students and 11,000 staff

»Main campus in Bloomsbury

»Satellite sites across London and beyond

»Sponsored Connections e.g. British Museum, National Gallery, Alan Turing Institute

IPv6 address planning

03/05/2023

Our IPv6 Address Allocation Strategy

»JANET offer /48 from 2001:630::/32

»Alignment with IPv4»Routing options limited»Renumbering»Size of allocation»Full control

IPv6 address planning

IPv6

03/05/2023

RIPE allocation

»Application for LIR status

»Allocation /32 »Reserved /29

»Now we have it…. What do we do with it?

IPv6 address planning

03/05/2023

Addressing Scheme Questions

»Link to IPv4 structure?»By type?»By location?»Both?

IPv6 address planning

03/05/2023

Principles

»Stay within a single /32»Allocation - day one»Reservation – expansion»Automated»Compressed notation

IPv6 Address Planning

03/05/2023

Types»Information Services

Division› Infrastructure (Network)› Data Centres› Wireless Clients

»Departments› On request

IPv6 Address Planning

»Locations› Building Infrastructure› Client services

»Sponsored Connections

03/05/2023

IPv6 Strategies

»Last year somewhere on a mountain….› Packet Pushers› SURFnet – Preparing an

IPv6 Addressing Plan› RIPE IPv6 Info Centre

IPv6 Address Planning

03/05/2023

Considerations

IPv6 Address Planning

Route Summarisat

ionIPAM Supported

all the way through?

Client Addressing

DNS

ICMPv6Security

03/05/2023

In conclusion…

»Don’t ignore it just because you think you’re IPv4 rich!

»Testing environment»Procurement»UCL IPv6 Working Group

IPv6 Address Planning

jisc.ac.uk

03/05/2023

Contact

Emma Cardinal-RichardsUCLe.cardinal-richards@ucl.ac.uk

IPv6 Address Planning

IPv6 Address PlanUniversity of Reading

George MargaritisNetwork & Telephony Service Manager

UoR IPv6 state

03/05/2023 IPv6 Addressing Plans

IPv4

IPv6

Network Infrastructure (Routing, Firewalls)

Core Services

DNS and Website (IPv6 day)

IPv6 Only Data Centre

DHCPv6Uo

R

More Services (corp. apps etc)

SLAAC with RDNSS (Wireless)

03/05/2023

UoR IPv6 state

»University of Reading addressing:

–UK: 2001:630:53::/48

–Malaysia: 2001:df0:2bf::/48

–Unique Local Addresses (ULA) for VPN links–e.g. fd0c:8da8:1839::/126

–Addressing based on VLAN IDsIPv6 Addressing Plans

03/05/2023

Considerations

»Recommended smallest prefix is /64»Being ‘mathematically’ correct

–Avoid: 134.225.204.0/24 2001:630:53:204::/64

(204 hex = 516 decimal !)»Have a logical link to the routing topology (OSPF areas, BGP private AS etc)

»Have a logical link to the IPv4 subnetting scheme

IPv6 Addressing Plans

03/05/2023

Considerations

Use Case:»Network with 1-16 different sites/campuses/areas

»Unique VLAN-IDs within each area»One-to-One matching VLAN-ID to Subnet

»Not convenient if the same VLAN-ID is used for many different subnets in the same area.IPv6 Addressing Plans

03/05/2023

Subnet allocation

»2001:630:53: y x x x : : /64 0000 0000 0000 0000 Site VLAN» y: Site / Campus /Area number/Zone: 0 – 15

– IPv6 route summarisation per site with /52– If VLAN-IDs are reused in different parts of the

network.» x: The same as VLAN-IDs: 0-4095

IPv6 Addressing Plans

03/05/2023

Subnet allocation

IPv6 Addressing Plans

»The site identifier y can also be used in various ways› For 1 to 16 different

sites/campuses/areas – Main Site (0-3),

• 0: Campus• 1: Guest• 2: DMZ • 3: Other

– Site 1 (4-7), – Site 2 (8-9)– Site 3 (a-b)– Data Centre (c-f)

03/05/2023

Subnet allocation

»Public IPs (campus network)›Main campus VLAN 100 2001:630:53:64::/64

• IPv4 Subnet: 134.225.100.0/23

›Remote site 1, VLAN 803 2001:630:53:1323::/64

»Private IPs›Main site VLAN 2932 2001:630:53:b74::/64

• IPv4 Subnet: 10.30.32.0/22

›Remote site 11, VLAN 2932 2001:630:53:bb74::/64

• IPv4 Subnet: 10.128.32.0/22

IPv6 Addressing Plans

03/05/2023

Host addresses

IPv6 Addressing Plans

»Servers have static IPs with per-service prefixes– 2001:db8:abc:123::<svc>:<inst>:<id>

03/05/2023

Host addresses

IPv6 Addressing Plans

›Web Servers–2001:630:53:1:0:80:1:1/64–2001:df0:2bf:1:0:80:1:2/64

›SMTP Servers–2001:630:53:1:0:25:1:1/64–2001:df0:2bf:1:0:25:1:2/64

›SQL Servers–2001:630:53:1::1433

:1/64–2001:df0:2bf:1::1433

:1/64

03/05/2023

IPv6 Tools

»Must have: › IPAM ›Documentation›An easy-to-use tool to support engineers:

• UoR IPv6 calculator built by Dr. A. J. Gatward (Jan 2011)IPv6 Addressing Plans

03/05/2023

IPv6 Risks

»Dual Stack›Servers not configured for IPv6

(while advertised on DNS as having IPv6)›Services not configured for IPv6›Missing IPv6 firewall policies

»Solutions with no IPv6 support›Hardware/firmware limitations (older equipment; BMS)

›Some newer applications too!IPv6 Addressing Plans

03/05/2023

Thank you

IPv6 Addressing Plans