 IPv6   IPv6 


1997'%• IPv6 #-. “Internet Standard”

5• +&316IPv6*

5• IPv4."27• IPv6$%7• IPv6,!043! (2018.653)• 4IPv4

()/…
2

IETF



Internet Draft
Best Current PracticeExperimental

Informational
Proposed Standard

Internet Standard
Historic    

3

IPv6 STD RFC • STD86(RFC 8200) Internet Protocol, Version 6 (IPv6)
Specification• STD87(RFC 8201) Path MTU Discovery for IP version 6• STD88(RFC 3596) DNS Extensions to Support IP Version 6• STD89(RFC 4443) Internet Control Message Protocol(ICMPv6) for the Internet Protocol Version 6 (IPv6)Specification

4

IETF102 Draft Standard RFC• RFC2460 – Internet Protocol, Version 6 (IPv6) Specification• RFC4291 – IP Version 6 Addressing Architecture (Draft Standard)• RFC4443 – Internet Control Message Protocol (ICMPv6) for theInternet Protocol Version 6 (IPv6) Specification• RFC3596 – DNS Extensions to Support IP Version 6• RFC1981 – Path MTU Discovery for IP version 6• RFC4861 – Neighbor Discovery for IP version 6 (IPv6) (Draft Standard)• RFC4862 – IPv6 Stateless Address Autoconfiguration (Draft Standard)• RFC4941 – Privacy Extensions for Stateless Address Autoconfiguration
in IPv6 (Draft Standard)• RFC5072 – IP Version 6 over PPP (Draft Standard)• <IPv6 over hoo> documents•

RFC2464 - IPv6 over Ethernet

5

IETFIPv6 

ipng WG
ngtrans WG





#%"!$


WG


 

#%"!$
 

ipv6 WG

v6ops WG

  !



6man WG   
softwire WG

behave WGhomenet WG
sunset4WG

opsec WG

6

6C9;('*I 6man wg (1/2)▷Internet Standard (DBA (BA$:!)• RFC4291 – IP Version 6 Addressing Architecture• BA I prefix ,/E /64F J
• CIDR1%• /64  0@ GH▷Privacy Extensions for Stateless Address
Autoconfiguration in IPv6 4<• ="8-537H•••

Privacy address &>?:) Interface ID #+2.
 G7

5B

68,+.H 6man wg (2/2)▷“RA IPv4 Unavailable Flag”@?
• ' FIPv4' C:• (> %'"4*F'
7A4;• 29 D31 #▷IPv6 Segment Routing Header (SRH)/<• IPv6 F!&$'& E09 )9-=GF
8

+432#&9 v6ops wg 1/2•   IPv6 only $/",• .
• IETF99 Microsoft: “Turning IPv4 off in an Enterprise•network”• IETF100 Cisco “IPv6 Only deployment at Cisco”• (%19 IETF' 632 8
5*7(!)

• IETF101 IPv6-preferred data center in London• (Facebook 0)• 6 )-• ”Conditional Router Advertisements for Enterprise PAMultihoming”

9$/-,3 v6ops wg 2/2• IPv4aaS +• Requirements for IPv6 Customer Edge Routers toSupport IPv4 Connectivity• 1464XLAT, DS-Lite, Lw4o6, MAP-E,
MAP-T " 2• CE .# !
• -,)*• IPv6 only network 0-,• % &   
• v6ops ML ('10IPv6• 3IPv6  • IPv6

• In some countries, major mobile networks are driving IPv6

adoption. In Japan (NTT - 7%, KDDI - 42% and Softbank - 34%),
India (Reliance JIO - 87%) and the USA (Verizon Wireless - 84%,Sprint - 70%, T-Mobile USA - 93%, and AT&T Wireless - 57%)
national mobile networks have very high levels of IPv6
deployment. Some mobile networks are taking the step to run
IPv6-only to simplify network operations and reduce costs.

  ###   $#  !   " $ 

11Google $.+$-(/)3$.+





Rank

5 $3( 


Name

IPv6 %

1 KDDI

40.98%

2 SoftBank BB



36.02%

3 OCN / plala29.13%

4 So-net

40.32%

44.79%

   &3&



5 BIGLOBE! 

6 NTT docomo.*)36 



7 ctc

/.6,/%$,/,43*/.2    /.(30,$,$

IPv6


7.05%

 

51.22%8 IIJ

 17.05%



9 TOKAI

21.83%



11.31%*! 

10 @nifty

!!'/&/-/ 

11 iTSCOM

14.53%

 

12 Sony Global Solutions



99.68%



13 star cat

22.08%

 

14 VECTANT



1.44%





15 K-Opticom



0.53%
13.15%



 %*3'1*5(23$1&$3!

03*&/-

40(1  

 

16 bit-drive  17 SINET 1.59%!



 

18 SuperCSI

43.20%

#!!

 

19 TDNC

(*/".*5(12*36 

20 Keio University 

 

1.97% 31.21%

  



12
▷4>G# $5,0(+)*2○  %.D@ E"○ IPv4aaS D@○ 36:?&ESRF▷8-;B9 !
G7=/<H○ IPv4G#$'

*C1F25A)

H13

Global deployment of IPv6!

14