IPv6 ?????? ?????

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IPv6 ?????? ?????

• ???? ??

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Contents

• ?????????
• ?????IPv6?????
• IPv4??????
• DNS????
• ??????

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CERNET2 ??IPv6????????IP????? -
???20?????,??????? - ?????????2.5G
10G??????? - ??IPv4??????,????????IPv6 -
??IPv6/IPv4??,??IPv6??,??IPv6??, ??IPv6???
- ??IPv4??????????IPv6??,???? ?????
??
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- ????IPv4/IPv6????????,?????? ??? -
???? IPv6 over IPv4?IPv4 over IPv6 -
????? ??Tunnel Broker?? - ????
6to4?ISATAP?DSTM?Teredo - ????
NAT-PT?TCP-UDP Relay?BIS/BIA
????
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Contents

• ?????????
• ?????IPv6?????
• IPv4??????
• DNS????
• ??????

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??IPv6??
- ?????
- ?????IPv6?????? ??IPv6????????,???????????,?
????IPv6???IPv4?? - ??????IPv6???????
?????????,?????????????????IPv6???????,?????????,?
????????IPv4-only
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??IPv6??
- ??????
???????? - IPv4???????IPv6??,???????,???IPv6???
?,?????IPv4????IPv6????? - ??????IPv6??,?IPv6???
?????IPv4???? ???? - IPv6??IPv6??????? -
IPv6??IPv4NAT-PT ??????????????,???????????,?
????????,IPv4?????,???????
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??IPv6??
- ???????
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??IPv6??
- ?????????
????????????,??????????????????VTP,???IPv6????????
VLAN,???????????NE40? ?????IPv4??,???????,????????
????????????IPv6????VLAN???????
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??IPv6??
- ??????????
?????????IPv4,???????? ?IPv6??
??????,NAT-PT ????ISATAP ISATAP??????????????,???
????ISATAP????IPv4??
????64bit 00005efe A.B.C.D
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??IPv6??
- ??????
?????????Tunnel Broker??,NE80???????? ????????????
??,??????????????????? ???????????????????
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Contents

• ?????????
• ?????IPv6?????
• IPv4??????
• DNS????
• ??????

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IPv4 over IPv6
- ????
?? - ???IPv6??????????IPv4?? -
?????????????,?????,???,?????? -
??IPv4??????,?IPv6????,IPv6?????? ?? -
????IPv6??????,??IPv4????????? -
??IPv6????????,IPv4???????????????
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IPv4 over IPv6
- ???????
- IPv4 over IPv6??????????? -
??IPv4?????,????????(??????????) - ????????? -
?IPv4????????? - ???????????????
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IPv4 over IPv6
- ????
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IPv4 over IPv6
- ???? ?????
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IPv4 over IPv6
- ??????

• ????
• ????
• - ??????????????IPv4???,???IPv4?????????IPv6????
  ???IPv6??,????????,????????,??IPv4???????IPv6????
• - ?????????????,??IPv4 over IPv6??,???????,?????
  ??,????????,???IPv6???,???IPv4????????

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IPv4 over IPv6
- ??????

• ???IPv4????????IPv6?????
• IPv4????????
• ???????IPv6???Addr6,??????Broker????????
• ????Addr6
• ????IPv4?????Addr6??????
• ?????Broker????????,?????????
• ?IPv4????????Broker??,?????????IPv6??,

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IPv4 over IPv6
- ???????
- ???????????,????????(????) - ????????? -
Broker?????????(??????,????????????) -
???????????? - ???????
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Contents

• ?????????
• ?????IPv6?????
• IPv4??????
• DNS????
• ??????

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DNS
- BIND9??IPv4?IPv6??????,BIND8?????IPv4?????? -
Windows?????DNS????IPv4?????,Linux????IPv4/IPv6???
??,????????????????(??IPv6??,????????????IPv6??,??
IPv4??,????????????IPv6??)
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DNS
- ????AAAA?A6 - ??????????IPv6??DNS???,????IPv6
??????? ????IPv6???,?seu6.edu.cn,?????????????
RFC3901?? - ??????????IPv4-only????? -
????????IPv4??????????
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????
1. ?????? BGP4 2. ?????? RIPng
??????? OSPFv3 ????IPv6???? IS-IS
??????IPv4?IPv6??,??????? ??????,????OSPFv3
OSPF
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