Zte ZXR10 T600

Chapter2IPv6BasicConguration
interoperatability,IPv6reserves1/128addressspacefor
OSINSAPaddressandnetworkIPXaddressrespectively.
Atpresent,theIPXaddresseshavenotbeenpreciselyde-
ned.RefertoRFC1888(OSINSAPandIPv6)fordescrip-
tionoftheNSAPaddressallocation.
�MulticastAddress
TheformatoftheIPv6multicastaddressisdifferentfromthat
oftheIPv6unicastaddress.Multicastaddressescanonlybe
usedasdestinationaddresses.Nopacketusesamulticast
addressasthesourceaddress.T able7showstheformatofa
multicastaddress.
TABLE7MULTICASTADDRESSFORMAT
8
44
112
1111111
Flags
Sco-
pe
Groupidentier
Therstbyteoftheaddressformatissettofull-one,identify-
ingitasamulticastaddress.Themulticastaddressoccupies
theentire1/256oftheIPv6addressspace.Theotherparts
excepttherstbyteofthemulticastaddressformatcontain
thefollowingthreeelds:
�Flagseld
Thiseldconsistsoffoursinglebitags.Currently,onlythe
bit-4isdesignatedtoindicatethatwhetherthisaddressis
awell-knownmulticastaddressdesignatedbytheInternet
numberinginstitution,oratemporarymulticastaddress
usedinaspecicoccasion.
Ifthisagbitissettozero,itindicatesthatthisaddressisa
well-knownaddress.Ifthisagbitissettoone,itindicates
thatthisaddressisatemporaryaddress.Theotherthree
agbitsarereservedforfutureuse.
�Scopeeld
Thisisa4-biteldandisusedtoindicatetherangeof
multicast.Thatis,whetheramulticastgrouponlyincludes
nodeswithinthesamelocalnetwork,thesamesiteorthe
sameinstitution,orincludesnodesthatresidesanywhere
intheIPv6globaladdressspace.Thepossiblevalues4–bits
valuerangesfrom0to15.Table8showsthecorresponding
range.
TABLE8MULTICASTSCOPEVALUE
Hex
DecimalValue
00
Reserved
11
Node-localrange
22
Link-localrange
33
Unallocated
CondentialandProprietaryInformationofZTECORPORATION11