IPv6 Transition Mechanisms
|
|
- Clara Watson
- 6 years ago
- Views:
Transcription
1 IPv6 Transition Mechanisms Petr Grygárek rek 1
2 IPv6 and IPv4 Coexistence Expected to co-exist together for many years Some IPv4 devices may exist forever Slow(?) transition of (part of?) networks to IPv6 depends on tangible benefits for users IPv4 address range may be treated as a subset of IPv6 range but payload has to be translated somehow for true interoperability includes both 6/4 header+address and DNS record translation (AAAA <->A) 2
3 Motivation for IPv6 transition (1) Large address space IPv4 address pool is depleted in some RIRs Anybody can have (almost) as many GLOBAL UNIQUE IPv6 addresses as he wants Interesting for mobile devices manafacturers, Internet of things, telco operators and last mile Internet access providers Should eliminate overlapping private networks forever Potential for various attractive address mapping schemes (e.g. embbedded RPs) BUT: is current address allocation scheme effective? remember beginnings of IPv4 ;-) 3
4 Motivation for IPv6 transition (2) * Avoidance of NAT universal connectivity, no need of provider's NAT44-like solutions etc. BUT: Some customers love their NAT New attractive features Mobility, multiple-address support, BUT: mostly available on IPv4 today also, limited implementations, increased complexity Enhanced security Built-in directly into protocol specification BUT: Not supported by all IPv6 protocol stack implementations and we have IPSec 4
5 Demotivation for IPv6 transition (1) From customer's applications point of view, no direct benefit for users but implementation may bring problems and network outages ;-) Many new mechanisms developed for IPv6 are available in IPv4 also now IPSec, IP Mobile, Transition is not painless for ISP, but it is much more complicated for service hosting company Many different platforms involved 5
6 Demotivation for IPv6 transition (2) IPv6 (with many extension RFCs) tries to solve many IPv4 problems (both existing and hypotetical) => complicated Not all security risks of rather complicated technologies are guaranteed to be be well understood now IPv6 specifications and address assignment policies are still changing 6
7 Typical IPv4 and IPv6 interactions IPv4 and IPv6 in parallel Dual stack, no true interoperability Overlaying over other protocol's domains 6 islands over 4 backbone 6 hosts over 4 network Interoperability (bidirectional / oneway) Full application connectivity between 6 and 4 hosts (6-4 payload translation) 7
8 Interoperability Options Dual-stack hosts / routers Applications and DNS resolver have to support both protocols also Tunneling Network-to-network, Host-to-network, Host-to-host Does not bring universal interoperability Protocol translation (NAT-PT, NAT64+DNS64) includes DNS manipulation Promising but most problematic need of keeping dynamic state, security issues 8
9 Basic Interoperability Tools Dual stack most commonly one hybrid stack Tunnelling Protocol translator AFT address-family translator formerly referred as NAT-PT 9
10 6 in 4 4 in 6 Tunnelling mechanisms protocol 41 in IPv4 header attractive for ISPs (saves IPv4 addresses, limits multiple NATting) traditional IPv4 data over IPv6 infra + carried-grade NAT (CGN) Static tunneling manual configuration virtual (tunnel) interfaces and virtual links Dynamic tunneling (multipoint) Stateful tunnel interface created Stateless per-packet encapsulation 6to4, ISATAP, Teredo,... 10
11 Tunnel Servers Tunnel server is a router connected to both IPv4 and IPv6 network platform has to support lot of tunnel interfaces Automated tunnel interface creation Creates tunnel interfaces on IPv4 side according to previous registrations WWW user interface Tunnel Setup Protocol (TSP) experimental, protocol messages in XML SASL authentication Commonly separate Tunnel Broker that controls multiple Tunnel Servers Tunnel broker also generates config script for remote client 11
12 6 to 4 (RFC 3056) communication of IPv6 islands over IPv4 backbone Address ranges of IPv6 islands are derived from gateway s public IPv4 address 2002::/ bit of 6to4 gw router s IPv4 address 6to4 router advertises 2002://16 prefix to IPv6 island to reach other islands Automatic (stateless) packet tunneling encapsulation to IPv4 packet with destination GW address obtained from 6to4 destination address Reverse DNS has to be solved Registrations may be accomplished on Verification by client s source address 12
13 6to4 to native-ipv6 communication Relay router IPv6->6to4 One native IPv6 interface One 6to4 interface Relay router(s) advertise 2002://16 prefix to IPv6 world 6to4->IPv6 Address of gateway to IPv6 native world needed in 6to4 format so that 6to4 islands' border routers can pass packets to it using 6to4 tunnel (tunnel destination address) BGP Dedicated anycast prefix for all 6to4 relay routers 13
14 6over4 (RFC 2529) Allows separate computers with IPv4 connectivity to participate on IPv6 Computers have to support both IPv4 and IPv6 Utilizes IPv4 as virtual link layer Packets are tunneled to 6over4 gateway (router) connected to both IPv4 and native IPv6 Neighbor discovery used for mapping of IPv6 addresses to IPv4 Because of ND procedures, IPv4 infrastructure has to support multicast IPv6 multicast group *.X.Y mapped to X.Y 14
15 IPv6 Rapid Deployment 6rd (RFC 5569) IPv6 over ISP's IPv4 environment Probably most favourite automatic tunneling today (with 6to4) Derived from 6to4 ISP uses some of his prefixes instead of 2002::/16, so that all 6rd hosts are reachable behind this prefix (configured into routers) No problem with 6to4 GW selection, asymmetric routing, propagation of 2002::/16 prefix to IPv6-only world,... IPv4 address encoded in IPv6 address 6rd prefix (N, max 32) IPv4 address (32) subnet (32-N) host (64) Common IPv4-prefix may be omitted without it, only /64s can be assigned as LIRs normally obtain /32 from RIR Customer addresses are provider-dependent 15
16 Inter-Site Automatic Tunnel Addressing Protocol (ISATAP) (1) Similar to 6over4 but does not require multicasting in IPv4 infrastructure for ND Used in IPv4 customer networks Utilizes 6to4 to communicate with other IPv6 islands Device s IPv6 address contains its IPv4 address <site_ipv6_prefix>:0000:5efe:<ipv4_address> Automatic stateless encapsulation/tunneling 16
17 Inter-Site Automatic Tunnel Addressing Protocol (ISATAP) (2) Neighbor discovery does not use multicasting IPv4 address encapsulated in IPv6 address Autoconfiguration and obtaining of default gateway has to be solved Explicit configuration of Potential Router List Manual configuration, DHCPv4, DNS Unicast Router Solicitations/ Advertisements 17
18 Teredo For IPv6 clients connected to IPv4 network through NAT Provides mechanism to communicate in both directions over NAT Communication has to be initiated from NAT inside and NAT table entry maintained Supports only cone and restricted NAT, not symmetric NAT Uses UDP-IPv4 encapsulation 18
19 Cone NAT NAT Implementations Assigns single address/port to client Any packet from outside to client s address/port is passed to the client (regardless of the source) Restricted NAT Only packets from addresses/ports contacted previously by client are allowed to pass in Symmetric NAT Assigns various addresses/ports to client for communication with different destinations Behaves as Restricted NAT in other aspects 19
20 Teredo IPv6 Addressess Network prefix (assigned by server) 2001::/32 Teredo prefix Teredo server IPv4 address (32b) Interface ID (constructed by client) Flags type of NAT type of NAT is tested during client registration ( qualification procedure ) Client s NAT outside address + port Obtained from Teredo server during qualification procedure Unicasted router solicitation/advertisement 20
21 Teredo servers Located in public Internet Connections to both IPv4 and IPv6 world Addresses configured manually on Teredo clients Serves as relays between Teredo clients behind NATs 21
22 Communication between Teredo clients Cone NAT: direct communication Restricted NAT: bubbles (empty messages) used to create translation entries in source s and destination s NATs Source->destination => (bidirectional) entry in source s NAT Source->Teredo server->destination Instruct destination to send bubble to source => (bidirectional) entry in destination s NAT Direct communication may follow 22
23 Relaying from Teredo client to non-teredo address Procedure defined to obtain Relay server address from Teredo server Advertises Teredo prefix (2001::/32) to native IPv6 world 23
24 NAT-Protocol Translation Client 4 server 6: Uses DNS reply manipulation AAAA A Pool of inside (private) IPv4 addresses on NAT/PT box used to replace AAAA destination IPv6 address Client source address translated to selected address from pool of outside (global) IPv6 addresses on NAT-PT box Single global IPv6 address may be also PAT-ted for L4 protocols IP Packet payload translated on NAT-PT box Client 6 server 4 IPv4 address space may be considered subset of IPv6 address space simple destination IP translation (+ SNAT) DNS manipulation also needed (A AAAA) 24
25 NAT64+DNS64 Connections may be established only from IPv6 to IPv4 Uses local dedicated IPv6 96b prefix for all IPv4 (destination) addresses in local IPv6 (client) network Routed to translator Preffix appended with IPv4 address (96+32=128b) Stateless unique address mapping IPv4 (outside) source NAT/PAT address is dynamically allocated for 1st session packet Static entries may be also used to allow 4->6 access to local servers 25
26 DNS64 DNS manipulation for NAT64 (stateless only) Handled by local DNS64-aware DNS server Client asks for AAAA For IPv4 servers, only A is present A A has to be mapped to AAAA IPv6 address concatenated from /96 prefix that directs to translator and respective IPv4 address Manipulated DNS replies are marked (CD flag) to prevent DNS client to check signature and reject DNSSec-protected reply as forged 26
27 Dual Stack (DS) Lite RFC 6333 IPv4 tunneled over native IPv6-only last-mile infra DS Lite implemented in CPE routers Only private IPv4 addresses on CPE insides ISP IPv4 NAT on packets decapsulated from IPv6 Consumes single public IPv4 addresses only on IPS's translator box 27
28 Other Migration Issues 28
29 Other 4-to-6 transition problems (1) Many older routers are NOT IPv6-enabled IPv6 support is often suboptimal Partial implementation Not hardware-accelerated => CPU load Many existing user devices are NOT IPv6-enabled nor upgradable to IPv6 IP phones, industry automation,... Some of them will NEVER be IPv6 support required even in switches MLD snooping, DHCP snooping, ARP snooping Reasonable multicast processing is now a MUST 29
30 Other 4-to-6 transition problems (2) Not complete IPv6 implementation in supporting infrastructure AAA RADIUS implementations etc. Some DNS/DDNS server implementations Management infrastructure implementation SNMP, Netconf, Syslog,... Firewalls, VPN gateways Often only partial L7 inspection support on IPv6 IP Telephony servers Special devices Content filters, load balancers, WLAN controllers,... 30
IPv6 Transition Mechanisms
IPv6 Transition Mechanisms Petr Grygárek rek 1 IPv6 and IPv4 Coexistence Expected to co-exist together for many years Some IPv4 devices may exist forever Slow(?) transition of (part of?) networks to IPv6
More informationTransition To IPv6 October 2011
Transition To IPv6 October 2011 Fred Bovy ccie #3013 fred@fredbovy.com 2011 Fred Bovy fred@fredbovy.com. Transition to IPv6 1 1st Generation: The IPv6 Pioneers Tunnels for Experimental testing or Enterprises
More informationUnit 5 - IPv4/ IPv6 Transition Mechanism(8hr) BCT IV/ II Elective - Networking with IPv6
5.1 Tunneling 5.1.1 Automatic Tunneling 5.1.2 Configured Tunneling 5.2 Dual Stack 5.3 Translation 5.4 Migration Strategies for Telcos and ISPs Introduction - Transition - the process or a period of changing
More informationA Border Gateway Protocol 3 (BGP-3) DNS Extensions to Support IP version 6. Path MTU Discovery for IP version 6
IPv6 Standards and RFC 1195 Use of OSI IS-IS for Routing in TCP/IP and Dual Environments RFC 1267 A Border Gateway Protocol 3 (BGP-3) RFC 1305 Network Time Protocol (Version 3) Specification, Implementation
More informationIPv6 Feature Facts
12.1.2 IPv6 Feature Facts The current IP addressing standard, version 4, will eventually run out of unique addresses, so a new system is being developed. It is named IP version 6 or IPv6. You should know
More informationPractical IPv6 for Windows Administrators
Practical IPv6 for Windows Administrators Edward Horley Apress" Contents J Forward About the Author About the Technical Reviewers Acknowledgments Introduction xvii xix xxi xxiii xxv Chapter 1: IPv6 the
More informationChapter 15 IPv6 Transition Technologies
Chapter 15 IPv6 Transition Technologies Published: April 18, 2006 Updated: November 06, 2006 Writer: Joe Davies 1 Abstract This chapter describes the mechanisms that aid in the transition of Internet Protocol
More informationIPv4-to-IPv6 Transition Strategies
IPv4-to-IPv6 Transition Strategies By Tim Rooney Director, Product Management INS IPv4-to-IPv6 Transition Strategies February 2007 INS Whitepaper Table of Contents INTRODUCTION...1 MIGRATION TECHNOLOGIES
More informationRadware ADC. IPV6 RFCs and Compliance
Radware ADC IPV6 s and Compliance Knowledgebase Team February 2016 Scope: This document lists most of the s that relevant to IPv6. Legend: Yes supported N/A not applicable No Currently not supported Relevance:
More informationIPv6 Transitioning. An overview of what s around. Marco Hogewoning Trainer, RIPE NCC
IPv6 Transitioning An overview of what s around Marco Hogewoning Trainer, RIPE NCC There Was a Plan The original idea was to have IPv6 deployed before we were out of IPv4 addresses By now the whole of
More informationIPv4/v6 Considerations Ralph Droms Cisco Systems
Title IPv4/v6 Considerations Ralph Droms Cisco Systems Agenda Motivation for IPv6 Review of IPv6 Impact of differences Tools and techniques Why IPv6? More addresses More addresses More addresses Security,
More informationIPv6 in Campus Networks
IPv6 in Campus Networks Dave Twinam Manager, Technical Marketing Engineering Internet Systems Business Unit dtwinam@cisco.com Cisco Twinam IPv6 Summit 2003 Cisco Systems, Inc. All rights reserved. 1 IPv6
More informationPlanning for Information Network
Planning for Information Network Lecture 7: Introduction to IPv6 Assistant Teacher Samraa Adnan Al-Asadi 1 IPv6 Features The ability to scale networks for future demands requires a limitless supply of
More informationTCP/IP Protocol Suite
TCP/IP Protocol Suite Computer Networks Lecture 5 http://goo.gl/pze5o8 TCP/IP Network protocols used in the Internet also used in today's intranets TCP layer 4 protocol Together with UDP IP - layer 3 protocol
More informationInternet Protocol, Version 6
Outline Protocol, Version 6 () Introduction to Header Format Addressing Model ICMPv6 Neighbor Discovery Transition from to vs. Taken from:chun-chuan Yang Basics: TCP/ Protocol Suite Protocol (IP) Features:
More informationTransitioning to IPv6
Transitioning to IPv6 麟瑞科技區域銷售事業處副處長張晃崚 CCIE #13673 2007 Cisco Systems, Inc. All rights reserved. ICND2 v1.0 7-1 IPv4 and IPv6 Currently, there are approximately 1.3 billion usable IPv4 addresses available.
More informationIPv6 Addressing. There are three types of IPV6 Addresses. Unicast:Multicast:Anycast
IPv6 Addressing There are three types of IPV6 Addresses. Unicast:Multicast:Anycast Unicast IPv6 addresses A unicast address identifies a single interface within the scope of the type of unicast address.
More informationGuide to TCP/IP Fourth Edition. Chapter 11: Deploying IPv6
Guide to TCP/IP Fourth Edition Chapter 11: Deploying IPv6 Objectives Explain IPv6 deployment requirements and considerations Plan an IPv6 deployment, including success criteria, architectural decisions,
More informationForeword xxiii Preface xxvii IPv6 Rationale and Features
Contents Foreword Preface xxiii xxvii 1 IPv6 Rationale and Features 1 1.1 Internet Growth 1 1.1.1 IPv4 Addressing 1 1.1.2 IPv4 Address Space Utilization 3 1.1.3 Network Address Translation 5 1.1.4 HTTP
More informationCSCI-1680 Network Layer:
CSCI-1680 Network Layer: Wrapup Rodrigo Fonseca Based partly on lecture notes by Jennifer Rexford, Rob Sherwood, David Mazières, Phil Levis, John JannoA Administrivia Homework 2 is due tomorrow So we can
More informationCCNA Questions/Answers IPv6. Select the valid IPv6 address from given ones. (Choose two) A. FE63::0043::11:21 B :2:11.1 C.
Select the valid IPv6 address from given ones. (Choose two) A. FE63::0043::11:21 B. 191.2.1.2:2:11.1 C. 2001::98 D. 2002:c0a8:101::42 E. :2001:: F. 2002.cb0a:3cdd:1::1 Answer: C, D. 2013 1 Which method
More informationIPv6 Bootcamp Course (5 Days)
IPv6 Bootcamp Course (5 Days) Course Description: This intermediate - advanced, hands-on course covers pertinent topics needed for IPv6 migration and deployment strategies. IPv6 novices can expect to gain
More informationIPv6 Transition Technologies (TechRef)
Tomado de: http://technet.microsoft.com/en-us/library/dd379548.aspx IPv6 Transition Technologies (TechRef) Updated: January 7, 2009 IPv6 Transition Technologies Protocol transitions are not easy, and the
More informationCOE IPv6 Roadmap Planning. ZyXEL
COE IPv6 Roadmap Planning ZyXEL COE Product Offering with IPv6 Dual Stack Lite / Translation & Dual Stack, IPv6 Core Phase I Chassis MSAN FW Rel. 3.96.1 MSC1000G, MSC1024G, MSC1224G, ALC12xxG- 5x, VLC13xxG-5x
More informationIPv6 Technical Challenges
IPv6 Technical Challenges Peter Palúch, CCIE #23527, CCIP University of Zilina, Slovakia Academy Salute, April 15 th 16 th, Bucharest IPv6 technical challenges What challenges do I meet if I decide to
More informationMobile IP. rek. Petr Grygárek Petr Grygarek, Advanced Computer Networks Technologies 1
Mobile IP Petr Grygárek rek 1 Basic principle Picture from IOS IP and IP Routing Configuration Guide Mobile node maintains the same IP address even while roaming in foreign networks even if it s address
More information2009/10/01. Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Obsoleted by RFC3596 [7] RFC 1887
六 年度 路 IPv6 RFC 年 871 872 六 IPv6 RFC IPv6 RFC 2009/10/01 RFC 狀 [1] RFC 1809 Using the Flow Label Field in IPv6 1995/06 [2] RFC 1881 IPv6 Address Allocation Management. 1995/12 [3] RFC 1883 Internet Protocol,
More informationMUM Lagos Nigeria Nov 28th IPv6 Demonstration By Mani Raissdana
MUM Lagos Nigeria Nov 28th IPv6 Demonstration By Mani Raissdana Mani Raissdana MikroTik Certified Trainer CTO & Co-Founder of Being in IT technology business roughly around 14 years Support & instruct
More informationIPv6 Transition Strategies
IPv6 Transition Strategies Philip Smith MENOG 14 Dubai 1 st April 2014 Last updated 5 th March 2014 1 Presentation Slides p Will be available on n http://thyme.apnic.net/ftp/seminars/
More informationTunnels. Jean Yves Le Boudec 2015
Tunnels Jean Yves Le Boudec 2015 1. Tunnels Definition: a tunnel, also called encapsulation occurs whenever a communication layer carries packets of a layer that is not the one above e.g.: IP packet in
More informationIPv6 Rapid Deployment (6rd) in broadband networks. Allen Huotari Technical Leader June 14, 2010 NANOG49 San Francisco, CA
Rapid Deployment () in broadband networks Allen Huotari Technical Leader ahuotari@cisco.com June 14, 2010 NANOG49 San Francisco, CA 1 Why IP Tunneling? IPv4 Tunnel Tunnel IPv4 IPv4 Retains end-end IP semantics
More informationImportant RFCs. Guide to TCP/IP: IPv6 and IPv4, 5 th Edition, ISBN
Guide to TCP/IP: IPv6 and IPv, th Edition, ISBN 98-1309-69-8 Important RFCs This document contains two tables: Table 1 lists the RFCs mentioned in Guide to TCP/IP: IPv6 and IPv, th Edition, and Table lists
More informationOSI Data Link & Network Layer
OSI Data Link & Network Layer Erkki Kukk 1 Layers with TCP/IP and OSI Model Compare OSI and TCP/IP model 2 Layers with TCP/IP and OSI Model Explain protocol data units (PDU) and encapsulation 3 Addressing
More informationIntroduction to IPv6 - II
Introduction to IPv6 - II Building your IPv6 network Alvaro Vives 27 June 2017 Workshop on Open Source Solutions for the IoT Contents IPv6 Protocols and Autoconfiguration - ICMPv6 - Path MTU Discovery
More informationIPv6 Security (Theory vs Practice) APRICOT 14 Manila, Philippines. Merike Kaeo
IPv6 Security (Theory vs Practice) APRICOT 14 Manila, Philippines Merike Kaeo merike@doubleshotsecurity.com Current IPv6 Deployments Don t break existing IPv4 network Securing IPv6 Can t secure something
More informationCisco IOS IPv6. Cisco IOS IPv6 IPv6 IPv6 service provider IPv6. IPv6. data link IPv6 Cisco IOS IPv6. IPv6
IP6FD v6 Fundamentals, Design, and Deployment v3.0 Cisco IOS IPv6 Cisco IOS IPv6 IPv6 IPv6 service provider IPv6 IP IPv6 IPv6 data link IPv6 Cisco IOS IPv6 IPv6 IPv6 DHCP DNS DHCP DNS IPv6 IPv4 IPv6 multicast
More informationTunnels. Jean Yves Le Boudec 2015
Tunnels Jean Yves Le Boudec 2015 1. Tunnels Definition: a tunnel, also called encapsulation occurs whenever a communication layer carries packets of a layer that is not the one above e.g.: IP packet in
More information12.1. IPv6 Feature. The Internet Corporation for Assigned Names and Numbers (ICANN) assigns IPv6 addresses based on the following strategy:
12.1. IPv6 Feature The current IP addressing standard, version 4, will eventually run out of unique addresses, so a new system is being developed. It is named IP version 6 or IPv6. You should know about
More informationIP version 6. The not so new next IP version. dr. C. P. J. Koymans. Informatics Institute University of Amsterdam.
IP version 6 The not so new next IP version dr. C. P. J. Koymans Informatics Institute University of Amsterdam February 5, 2008 dr. C. P. J. Koymans (UvA) IP version 6 February 5, 2008 1 / 35 1 Rationale
More informationIPv4 and IPv6 Transition & Coexistence
IPv4 and IPv6 Transition & Coexistence Copy Rights This slide set is the ownership of the 6DEPLOY project via its partners The Powerpoint version of this material may be reused and modified only with written
More informationBIG-IP CGNAT: Implementations. Version 13.0
BIG-IP CGNAT: Implementations Version 13.0 Table of Contents Table of Contents Deploying a Carrier Grade NAT... 9 Overview: The carrier-grade NAT (CGNAT) module... 9 About ALG Profiles...10 About CGNAT
More informationNetwork Configuration Example
Network Configuration Example Configuring Dual-Stack Lite for IPv6 Access Release NCE0025 Modified: 2016-10-12 Juniper Networks, Inc. 1133 Innovation Way Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net
More informationVirtual Private Networks Advanced Technologies
Virtual Private Networks Advanced Technologies Petr Grygárek rek Agenda: Supporting Technologies (GRE, NHRP) Dynamic Multipoint VPNs (DMVPN) Group Encrypted Transport VPNs (GET VPN) Multicast VPNs (mvpn)
More informationMobile IP and its trends for changing from IPv4 to IPv6
Mobile IP and its trends for changing from IPv4 to IPv6 Nguyen Ngoc Chan*, Tran Cong Hung Ph.D. (Posts & Telecommunications Institute of Technology, Viet Nam) E-mail: ngoc_chan@ptithcm.edu.vn, conghung@ptithcm.edu.vn
More informationIPv6 migration challenges and Security
IPv6 migration challenges and Security ITU Regional Workshop for the CIS countries Recommendations on transition from IPv4 to IPv6 in the CIS region, 16-18 April 2014 Tashkent, Republic of Uzbekistan Desire.karyabwite@itu.int
More informationAdvanced Computer Networking. CYBR 230 Jeff Shafer University of the Pacific. IPv6
CYBR 230 Jeff Shafer University of the Pacific IPv6 2 IP Versions Version Description 0-3 Unused: Development versions of IP 4 Current network-layer protocol 5 Unused: Experimental stream protocol ST 6
More informationMigration to IPv6 from IPv4. Is it necessary?
Introduction Today Internet plays a big role in every aspect of our lives and IP acted as an important pillar of Internet. Since its inception the Internet has reached almost all corners of globe and it
More informationIPv6 tutorial. RedIRIS Miguel Angel Sotos
IPv6 tutorial RedIRIS Miguel Angel Sotos miguel.sotos@rediris.es Agenda History Why IPv6 IPv6 addresses Autoconfiguration DNS Transition mechanisms Security in IPv6 IPv6 in Windows and Linux IPv6 now 2
More informationCS 356: Computer Network Architectures. Lecture 15: DHCP, NAT, and IPv6. [PD] chapter 3.2.7, 3.2.9, 4.1.3, 4.3.3
CS 356: Computer Network Architectures Lecture 15: DHCP, NAT, and IPv6 [PD] chapter 3.2.7, 3.2.9, 4.1.3, 4.3.3 Xiaowei Yang xwy@cs.duke.edu Dynamic Host Configuration Protocol (DHCP) Dynamic Assignment
More informationOSI Data Link & Network Layer
OSI Data Link & Network Layer Erkki Kukk 1 Layers with TCP/IP and OSI Model Compare OSI and TCP/IP model 2 Layers with TCP/IP and OSI Model Explain protocol data units (PDU) and encapsulation 3 Addressing
More informationECE 435 Network Engineering Lecture 14
ECE 435 Network Engineering Lecture 14 Vince Weaver http://web.eece.maine.edu/~vweaver vincent.weaver@maine.edu 25 October 2018 Announcements HW#6 was due HW#7 will be posted 1 IPv4 Catastrophe 2 Out of
More informationCategory: Standards Track June Mobile IPv6 Support for Dual Stack Hosts and Routers
Network Working Group H. Soliman, Ed. Request for Comments: 5555 Elevate Technologies Category: Standards Track June 2009 Status of This Memo Mobile IPv6 Support for Dual Stack Hosts and Routers This document
More informationOSI Data Link & Network Layer
OSI Data Link & Network Layer Erkki Kukk 1 Layers with TCP/IP and OSI Model Compare OSI and TCP/IP model 2 Layers with TCP/IP and OSI Model Explain protocol data units (PDU) and encapsulation 3 Addressing
More information"Charting the Course... IPv6 Bootcamp Course. Course Summary
Course Summary Description This intermediate - advanced, hands-on course covers pertinent topics needed for IPv6 migration and deployment strategies. IPv6 novices can expect to gain a thorough understanding
More informationIPv6. Internet Technologies and Applications
IPv6 Internet Technologies and Applications Contents Summary of IPv6 core features Auto-configuration IPv4-IPv6 transition techniques IPv6 networks today ITS 413 - IPv6 2 Motivation Current version of
More informationAvaya Networking IPv6 Using Fabric Connect to ease IPv6 Deployment. Ed Koehler Director DSE Ron Senna SE Avaya Networking Solutions Architecture
Avaya Networking IPv6 Using Fabric Connect to ease IPv6 Deployment Ed Koehler Director DSE Ron Senna SE Avaya Networking Solutions Architecture IAUG Newport RI, November 2013 Agenda IPv6, The fundamentals
More informationConfiguring IPv6 basics
Contents Configuring IPv6 basics 1 IPv6 overview 1 IPv6 features 1 IPv6 addresses 2 IPv6 neighbor discovery protocol 5 IPv6 PMTU discovery 8 IPv6 transition technologies 8 Protocols and standards 9 IPv6
More informationFederal Agencies and the Transition to IPv6
Federal Agencies and the Transition to IPv6 Introduction Because of the federal mandate to transition from IPv4 to IPv6, IT departments must include IPv6 as a core element of their current and future IT
More informationIPv6 Deployment at the University of Pennsylvania
IPv6 Deployment at the University of Pennsylvania Jorj Bauer and Shumon Huque University of Pennsylvania Educause Mid-Atlantic Regional Conference, Philadelphia, PA January 8 th, 2009 Outline Why you should
More informationIPv6 Transition Strategies
IPv6 Transition Strategies Philip Smith APNIC 36 Xi an 20 th -30 th August 2013 Last updated 25 July 2013 1 Presentation Slides p Will be available on n http://thyme.apnic.net/ftp/seminars/apnic36-
More informationTransition to IPv6. Hui Chen, Ph.D. Dept. of Engineering & Computer Science Virginia State University Petersburg, VA 23806
Transition to IPv6 Hui Chen, Ph.D. Dept. of Engineering & Computer Science Virginia State University Petersburg, VA 23806 10/12/2015 CSCI 445 Fall 2015 1 Acknowledgements Some pictures used in this presentation
More informationImplementing Cisco IP Routing
300-101 Implementing Cisco IP Routing NWExam.com SUCCESS GUIDE TO CISCO CERTIFICATION Exam Summary Syllabus Questions Table of Contents Introduction to 300-101 Exam on Implementing Cisco IP Routing...
More informationData Center Configuration. 1. Configuring VXLAN
Data Center Configuration 1. 1 1.1 Overview Virtual Extensible Local Area Network (VXLAN) is a virtual Ethernet based on the physical IP (overlay) network. It is a technology that encapsulates layer 2
More informationDeployment of IPv6 at Ss. Cyril and Methodius University in Skopje Goce Gjorgjijoski
Deployment of IPv6 at Ss. Cyril and Methodius University in Skopje Goce Gjorgjijoski University Computer Centre, Ss. Cyril and Methodius University in Skopje (UKIM) 2 Introduction February 2011 - IANA
More informationPRACTICAL IPV6 DEPLOYMENT FOR THE MASS MARKET
PRACTICAL IPV6 DEPLOYMENT FOR THE MASS MARKET Kristoffer Larsen Network Development Engineer kri@telia.net THE HISTORY OF MASS MARKET IPV6 WITHIN TELIA COMPANY On fixed access Telia Company launched an
More informationTunnels. Jean Yves Le Boudec 2014
Tunnels Jean Yves Le Boudec 2014 2 Menu Today: lecture Tunnels, 6to4 Link State Routing Tomorrow 11:15 12:15 Last clicker test How TOR works (presentation of best research exercise award) No lab Lab 3
More informationR. van Rein OpenFortress November A Comparison of IPv6-over-IPv4 Tunnel Mechanisms
Independent Submission Request for Comments: 7059 Category: Informational ISSN: 2070-1721 S. Steffann S.J.M. Steffann Consultancy I. van Beijnum Institute IMDEA Networks R. van Rein OpenFortress November
More informationTik Network Application Frameworks. IPv6. Pekka Nikander Professor (acting) / Chief Scientist HUT/TML / Ericsson Research NomadicLab
Pekka Nikander TKK/TML Tik-110.448 Network Application Frameworks IPv6 Pekka Nikander Professor (acting) / Chief Scientist HUT/TML / Ericsson Research NomadicLab 1 Pekka.Nikander@hut.fi Pekka Nikander
More informationHost-based Translation Problem Statement.
Host-based Translation Problem Statement chengang@chinamobile.com Why we need host based translation Two IP families need talk each other, otherwise there are totally separated two worlds; There exists
More informationYasuo Kashimura Senior Manager, Japan, APAC IPCC Alcatel-lucent
Yasuo Kashimura Senior Manager, Japan, APAC IPCC Alcatel-lucent Agenda 1. 1. Current status of / internet 2. 2. continuity 3. 3. continuity over network 4. 4. rapid deployment 5. 6. Wider deployment 6.
More informationConfiguring IPv6 PDP Support on the GGSN
CHAPTER 5 This chapter describes how to configure support for Internet Protocol Version 6 (IPv6) packet data protocol (PDP) contexts on a Cisco Gateway GPRS Support Node (GGSN). For complete descriptions
More informationThe OSI model of network communications
The OSI model of network communications The TCP/IP networking layers are mapped to the OSI model The Next Generation TCP/IP stack IPv6 is supported natively in Windows Vista, Windows 7, Windows Server
More informationIPv6 Neighbor Discovery
About, page 1 Prerequisites for, page 2 Guidelines for, page 2 Defaults for, page 4 Configure, page 5 View and Clear Dynamically Discovered Neighbors, page 10 History for, page 11 About The IPv6 neighbor
More informationIPv6 Next generation IP
Seminar Presentation IPv6 Next generation IP N Ranjith Kumar 11/5/2004 IPv6 : Next generation IP 1 Network Problems Communication Problem Identification Problem Identification of Networks Logical Addressing
More informationIPv6 Concepts. Improve router performance Simplify IP header Align to 64 bits Address hierarchy with more levels Simplify routing tables
IPv6 Concepts Tópicos Avançados de Redes 2016/2017 Why IPv6? 2 Lack of IPv4 addresses Imply NAT, or other solutions; Realm Specific IP (RFC3102) Improve router performance Simplify IP header Align to 64
More informationFiberstoreOS IPv6 Service Configuration Guide
FiberstoreOS IPv6 Service Configuration Guide Contents 1 Configuring IPv6 over IPv4 Tunnel...5 1.1 Overview...5 1.1.2 Manual Tunnel...6 1.1.3 6to4 Tunnel...6 1.1.4 ISATAP Tunnel...7 1.2 Configure Manual
More informationIPv4/IPv6 Smooth Migration (IVI) Xing Li etc
IPv4/IPv6 Smooth Migration (IVI) Xing Li etc. 2008-08-16 Abstract This presentation will introduce the concept and practice of prefix-specific and bi-direction explicit address mapping (IVI) for IPv4/IPv6
More informationAdvanced Computer Networking (ACN)
Chair of Network Architectures and Services Department of Informatics Technical University of Munich Advanced Computer Networking (ACN) IN2097 WiSe 2017-2018 Prof. Dr.-Ing. Georg Carle Sebastian Gallenmüller,
More informationImplementing Cisco IP Routing (ROUTE)
Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide Foundation learning for the ROUTE 642-902 Exam Diane Teare Cisco Press 800 East 96th Street Indianapolis, IN 46240 Implementing Cisco IP
More informationBIG-IP CGNAT: Implementations. Version 12.1
BIG-IP CGNAT: Implementations Version 12.1 Table of Contents Table of Contents Deploying a Carrier Grade NAT... 7 Overview: The carrier-grade NAT (CGNAT) module... 7 About ALG Profiles...8 About CGNAT
More informationIPv6 : Internet Protocol Version 6
IPv6 : Internet Protocol Version 6 History Internet growth was faster than anticipated In early 1990 s, it was realized that we may run out of IPv4 addresses somewhere between 2000 and 2010 Also, experiences
More informationHistory. IPv6 : Internet Protocol Version 6. IPv4 Year-Wise Allocation (/8s)
History IPv6 : Internet Protocol Version 6 Internet growth was faster than anticipated In early 1990 s, it was realized that we may run out of IPv4 addresses somewhere between 2000 and 2010 Also, experiences
More informationIPv6: An Introduction
Outline IPv6: An Introduction Dheeraj Sanghi Department of Computer Science and Engineering Indian Institute of Technology Kanpur dheeraj@iitk.ac.in http://www.cse.iitk.ac.in/users/dheeraj Problems with
More informationRMIT University. Data Communication and Net-Centric Computing COSC 1111/2061. Lecture 2. Internetworking IPv4, IPv6
RMIT University Data Communication and Net-Centric Computing COSC 1111/2061 Internetworking IPv4, IPv6 Technology Slide 1 Lecture Overview During this lecture, we will understand The principles of Internetworking
More informationPatrick Grossetete Cisco Systems Cisco IOS IPv6 Product Manager 2003, Cisco Systems, Inc. All rights reserved.
Patrick Grossetete Cisco Systems Product Manager pgrosset@cisco.com 1 IPv6 Business Model Integration of IPv6 brings benefits but it has also a cost ROI not yet - easy to evaluate Additional business models
More informationVirtual Private Networks Advanced Technologies
Virtual Private Networks Advanced Technologies Petr Grygárek rek Agenda: Supporting Technologies (GRE, NHRP) Dynamic Multipoint VPNs (DMVPN) Group Encrypted Transport VPNs (GET VPN) Multicast VPNs (mvpn)
More informationChapter 7: IP Addressing CCENT Routing and Switching Introduction to Networks v6.0
Chapter 7: IP Addressing CCENT Routing and Switching Introduction to Networks v6.0 CCNET v6 13 Chapter 7 - Sections & Objectives 7.1 IPv4 Network Addresses Convert between binary and decimal numbering
More informationOn Distributed Communications, Rand Report RM-3420-PR, Paul Baran, August 1964
The requirements for a future all-digital-data distributed network which provides common user service for a wide range of users having different requirements is considered. The use of a standard format
More informationNetworking: Network layer
control Networking: Network layer Comp Sci 3600 Security Outline control 1 2 control 3 4 5 Network layer control Outline control 1 2 control 3 4 5 Network layer purpose: control Role of the network layer
More informationIntroduction to IPv6
Introduction to IPv6 LACNIC Campaign Latinamerica and the Caribbean in IPv6 1/1/11 Ariel Sabiguero asabigue@fing.edu.uy Haiti, August 2008 Agenda IPv6 History & backgroud ( header IPv6 header format (vs
More informationThe link-local prefix ff00::/8 specifies any addresses which are used only in software.
Which statement is true about the IPv6 prefix ff00::/8? The link-local prefix ff00::/8 specifies any addresses which are used only in software. The link-local prefix ff00::/8 specifies all addresses which
More informationHSCN IP Addressing Good Practice Guidelines
Document filename: HSCN IP Addressing GPG v0.9 FINAL.docx Project / Programme HSCN Project HSCN Document Reference Project Manager Status [Status] Owner Version 0.9 Author Version issue
More informationIPv6 Transition Planning
IPv6 Transition Planning ITU/APNIC/MOIC IPv6 Workshop 19 th 21 st June 2017 Thimphu These materials are licensed under the Creative Commons Attribution-NonCommercial 4.0 International license (http://creativecommons.org/licenses/by-nc/4.0/)
More informationLecture Computer Networks
Prof. Dr. Hans Peter Großmann mit M. Rabel sowie H. Hutschenreiter und T. Nau Sommersemester 2012 Institut für Organisation und Management von Informationssystemen Lecture Computer Networks Internet Protocol
More informationTransition Strategies from IPv4 to IPv6: The case of GRNET
Transition Strategies from IPv4 to IPv6: The case of GRNET C. Bouras 1,2, P. Ganos 1, A. Karaliotas 1,2 1 Research Academic Computer Technology Institute, Patras, Greece 2 Department of Computer Engineering
More informationTable of Contents Chapter 1 Tunneling Configuration
Table of Contents Table of Contents... 1-1 1.1 Introduction to Tunneling... 1-1 1.1.1 IPv6 over IPv4 Tunnel... 1-2 1.1.2 IPv4 over IPv4 Tunnel... 1-7 1.2 Tunneling Configuration Task List... 1-8 1.3 Configuring
More informationTutorial: IPv6 Technology Overview Part II
Tutorial: IPv6 Technology Overview Part II Speaker: Byju Pularikkal, Cisco Systems, Inc Date: 01/30/2011 1 DOCSIS = Data-Over-Cable Service Interface Specification CMTS = Cable Modem Termination System
More informationDHCPv6 Overview 1. DHCPv6 Server Configuration 1
Table of Contents DHCPv6 Overview 1 Introduction to DHCPv6 1 DHCPv6 Address/Prefix Assignment 1 Rapid Assignment Involving Two Messages 1 Assignment Involving Four Messages 2 Address/Prefix Lease Renewal
More informationFiberstoreOS IPv6 Security Configuration Guide
FiberstoreOS IPv6 Security Configuration Guide Contents 1 Configuring IPv6 over IPv4 Tunnel...4 1.1 Overview... 4 1.1.2 Manual Tunnel... 5 1.1.3 6to4 Tunnel... 6 1.1.4 ISATAP Tunnel...7 1.2 Configure Manual
More informationDHCPv6 (RFC3315 RFC4361)
6.5. DHCPv6-1 DHCPv6 (RFC3315 RFC4361) DHCPv6 is a client-server-based UDP protocol designed to reduce the IPv6 nodes management cost in those environments whereby control of IPv6 address allocation is
More information