Zte ZXR10 ZSR V2 - Figure 16-2 Principles of the Ipv4 (or Ipv6) over Ipv4 Tunnel; Figure 16-3 Principles of a 6 In4 Tunnel

ZXR10ZSRV2CongurationGuide(IPv6)
lIftheterminationaddressoftheIPv6overIPv4tunnelcannotbeautomatically
obtainedfromthedestinationaddressoftheIPv6packetbutneedstobemanually
congured,thetunneliscalledaconguredtunnel,suchasa6in4tunnel.
lIftheinterfaceaddressoftheIPv6overIPv4tunnelassumesaspecial
IPv4-embeddedIPv6addressformat(i.e.theIPv4addressofthetunneltermination
pointcanbeautomaticallyobtainedfromthedestinationaddressoftheIPv6packet),
thetunneliscalledanautomatictunnel,suchasa6to4tunneloranISATAPtunnel.
ThereisanothertypeofIPv4orIPv6overIPv6tunnel.TheprotocolencapsulatesanIPv4
orIPv6datapacketsothattheencapsulateddatapacketcanbetransmittedinanother
IPv6network.ThedatapacketaftertheencapsulationisanIPv6tunnelpacket,asshown
inFigure16-2.
Figure16-2PrinciplesoftheIPv4(orIPv6)overIPv4Tunnel
InFigure16-2,OriginaldatareferstotheIPv4orIPv6packet.
ADS-listtunnelenablesIPv4userstoaccessIPv4InternetaftertraversingapureIPv6
network.Itimplementscarrier-classIPv4addressmultiplexthroughIPv4-IPv4NAT .
Packetsareencapsulatedanddecapsulatedinthetunnelontheforwardingplane.
6in4Tunnel
Figure16-3showstheoperatingprinciplesofa6in4tunnel.
Figure16-3Principlesofa6in4Tunnel
The6in4tunnelinvolvesatunnelencapsulationanddecapsulationprocess.
16-2
SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential