IPv6-tutorial

IPv6 TutorialSANOG VDhaka, Bangladesh11 February 2005SANOG V © 2005, Cisco Systems, Inc. All rights reserved. 1Presentation Slides• Available onftp://ftp-eng.cisco.com/pfs/seminars/SANOG5-IPv6-Tutorial.pdfAnd on the SANOG5 website• Feel free to ask questions any timeSANOG V © 2005, Cisco Systems, Inc. All rights reserved. 222Agenda• Introduction to IPv6• IPv6 Routing• OSPFv3• BGP for IPv6• IPv6 Filtering• Integration & Transition• DeploymentSANOG V © 2005, Cisco Systems, Inc. All rights reserved. 333Introduction to IPv6SANOG V © 2005, Cisco Systems, Inc. All rights reserved. 4Agenda• The Case for IPv6• IPv6 Protocols & StandardsSANOG V © 2005, Cisco Systems, Inc. All rights reserved. 555A need for IPv6?• IETF IPv6 WG began in early 1990s, to solve addressing growth issues, butCIDR, NAT, PPP, DHCP were developedSome address reclamationThe RIR system was introduced→ Brakes were put on IPv4 address consumption• IPv4 32 bit address = 4 billion hosts38.1% address space still unallocated (09/2004)SANOG V © 2005, Cisco Systems, Inc. All rights reserved. 666A need for IPv6?• General perception is that “IPv6 has not yet taken hold strongly”IPv4 Address shortage is not upon us yetPrivate sector requires a business caseData on Wireless infrastructure emerges recently• But reality looks far better for the coming years! IPv6 needed to sustain the Internet growth• Only compelling reason for IPv6:LARGER ADDRESS SPACEHD Ratio (RFC3194) ...