Research topics on IPv6 and Next Generation Internet Addressing

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Research topics on IPv6 and Next Generation
Internet Addressing

• J.Soldatos , G. Karestos
• National Technical University of Athens
• Contact e-mail jsoldat_at_telecom.ntua.gr,
  karetsos_at_softlab.ece.ntua.gr

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IPv6 Alternatives Addressing framewroks

• IPv6 target objectives
• Tackling with Address Depletion
• Automatic Address (Re)configuration
• Security Issues
• Support for various traffic types / QoS
• Host Mobility /Ad-hoc networks
• Address Depletion Solutions
• IPv6 friendy
• Non-IPv6 friendly (NAT based)
• both sharing common concepts

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Alternative Addressing Frameworks

• Anti IPv6 strategies
• Researched in the U.S
• Pledge simpler and smoother deployment (e.g.,
  IPv4 retention, fewer deployment phases)
• Either intermediate or permanent solutions (I.e.
  forerunners of a fully fledged IP6 solution)
• Common reaserch topics with IPv6
• Prominent Alternative (Overlay) Frameworks
• IPNL (IP Next Layer) P. Francis / Tahoe
  Networks
• TRIAD / WRAP Stanford University

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IPNL IP Next Layer

• IPNL
• http//www.ipnl.net,
• Ipv4 / NAT based solution to impove scalability
  size problem
• New layer above IP routed by NAT boxes (10 bytes
  addressing)
• Fully Qualified Domain Names (FQDN) for e2e host
  identification
• IPNL address space globaly_unique_addr
  (IPv4)private_address
• Site addressing isolation from global addressing
• Maximazes infrastructure resuse ? minimal
  deployment costs

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TRIAD

• TRIAD / WRAP
• http//www.dsg.stanford.edu/triad,
• Framework for Internet Content Delivery
• Path based addressing ( IPv4) ? extensible
  addressing (also Mobility, VPN, Policy Routing,
  Source Spoofing)
• DRP Directory Relay Protocol for name lookup
  (content layer)
• Wide Area Relay Addressing Protocol ? IP
  encapsulation, IRT (reverse forward tokens)
• Reduces average packet overhead

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NTUA research targets

• Alternative addressing frameworks
• Routing complexity, overhead, performance
• Robustness
• Multicasting
• VoIP deployment in WRAP, BGP for IPL,
• IPv6 migration
• Explicit tunnelling and 6to4 co-existance
• Dual Stack efficiency
• IPv6 adverstising DNS implications
• Tools
• Linux Free BSD based IPv6 testbed
• Simulation (NS-2 based) Scaling Robustness
  study

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Conclusions

• Alternative addressing frameworks exist
• Advantages Drawbacks
• Interim Permanent solutions
• EU research should focus on these as well
• Completeness regarding migration schemes
• IPv6 to incorporate any important aspets
  concepts
• NTUA aims at studying both friendly and
  non-friendly IPv6 strategies towards defining the
  optimum transition strategy
• Also, Conventional IP research issues (QoS,
  Securiry, Service Network Management,
  applications) should be studied