getting over the hump strategies for ipv4 ipv6 co existence
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Getting over the hump: Strategies for IPv4/IPv6 co-existence. Andrei Robachevsky. The need – what matters?. Connections, not IPs {IP s ,port s ,IP d ,port d }

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Presentation Transcript
the need what matters
The need – what matters?
  • Connections, not IPs
    • {IPs,ports,IPd,portd}
    • Unfortunately IPs have to be from the same “family”, so for each connection to or from IPv4 we need a corresponding IPv4 address
  • NeedIPv4=
  • The “Internet” is different for different clients and different players

Size(IPv4only)

, growth_rate)

Size(Internet)

f

possibilities for growth
Possibilities for growth
  • All of them require sharing addresses
    • Unless reserves are sufficient
      • 6-3 months - not
    • Long-term need for IPv4
    • Different flavors of NAPT
  • The best include IPv6 deployment
    • Support continued IPv6 growth alongside IPv4
    • Shifting the balance gradually to IPv6
      • DS-Lite
      • NAT64
not all roses
Not all roses
  • IPv4 sharing
    • NAT breaks applications
    • Reputation and reporting IP based
    • Geo-location breaks
    • Everybody can’t get port 80
    • ...
  • Expertise
    • Do you know STUN, ICE, TURN?
    • Have you tested DS-Lite, NAT64/DNS64?
  • Unfortunately this is not as mature as IPv6
    • And we thought IPv6 wasn’t mature enough!
players and their ipv4 needs
Players and their IPv4 needs
  • Transit providers
  • Enterprise
  • Content Providers
  • Residential (Broadband) providers
    • SOHO
  • Mobile operators
players and their ipv4 needs transit
Players and their IPv4 needs - Transit
  • Transit providers
    • Need to support IPv6 transport and routing
    • Internal IPv4 requirements are modest
      • Can use IPv6
  • Enterprise
  • Content Providers
  • Residential (Broadband) providers
    • SOHO
  • Mobile operators
players and their ipv4 needs enterprise
Players and their IPv4 needs - Enterprise
  • Transit providers
  • Enterprise
    • Moderate need
    • Restructuring or buying
    • Simple NAT
  • Content Providers
  • Residential (Broadband) providers
    • SOHO
  • Mobile operators
players and their ipv4 needs content
Players and their IPv4 needs - Content
  • Transit providers
  • Enterprise
  • Content Providers
    • Painful, need a real IP for a lo-o-ong time
      • Virtual hosting will help a little
    • Major IPv6 drivers
  • Residential (Broadband) providers
    • SOHO
  • Mobile operators
players and their ipv4 needs broadband
Players and their IPv4 needs - Broadband
  • Transit providers
  • Enterprise
  • Content Providers
  • Residential (Broadband) providers
    • One of the most painful
    • Technology upgrade
      • DS-Lite, 6rd, + CGN
      • STUN, ICE, TURN
      • need CPE upgrade
      • SOHO needs control (PCP, etc.)
    • Need is proportional to number of households
  • Mobile operators
players and their ipv4 needs mobile
Players and their IPv4 needs - Mobile
  • Transit providers
  • Enterprise
  • Content Providers
  • Residential (Broadband) providers
    • SOHO
  • Mobile operators
    • IPv6 only + NAT64
      • Still need to support IPv4 data roaming
    • Needs are higher
      • Proportional to population numbers
to do or not to do
To do, or not to do
  • Deploy IPv6
    • The only way to get over the hump
    • Good for the Internet
    • Good for you in the long run (mid-term investment)
    • Start doing the right thing while it’s small
  • Manage co-existence
    • ensure that the solution will support your growing need for IPv4 (short term investment)
    • otherwise IPv6 won’t help you 
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