Zte ZXR10 ZSR V2 - Chapter 16 IPv6 Tunnel Configuration

Chapter16
IPv6TunnelConguration
TableofContents
IPv6TunnelConguration........................................................................................16-1
ISATAPTunnelConguration.................................................................................16-13
16.1IPv6TunnelConguration
16.1.1IPv6TunnelOverview
IPv6TunnelIntroduction
Tunnelingisanencapsulationtechnologyusedtotransmitanothernetworkprotocol
throughtheuseofonenetworkprotocol,thatis,itutilizesonenetworktransferprotocol
toencapsulatethedatapacketsgeneratedbyotherprotocolsintoitsownpacketsbefore
thepacketsaretransmittedinthenetwork.
TheIPv6overIPv4tunnelmechanismisusedtoaddanIPv4headerinthefrontofthe
IPv6datapacketandthentransfertheIPv6packetthroughatunnelsothattheIPv6
packettraversestheIPv4networktoimplementtheinterworkingbetweentwoisolated
IPv6networks,asshowninFigure16-1.
Figure16-1PrinciplesoftheIPv6overIPv4TunnelMechanism
AnIPv6overIPv4tunnelcanbeestablishedbetweentwohosts,betweenahostanda
router,orbetweentworouters.Theterminationpointofthetunnelmaybetheultimate
destinationoftheIPv6packet,orthepacketmaystillneedtobefurtherforwarded.
Therefore,tunnelsareclassiedintoconguredtunnelsandautomatictunnelsbasedon
thewaystoobtainthedestinationIPv4addressofatunnel.
16-1
SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential