IPv_基础知识简要介绍.ppt

IPv6 Introduction Agenda IPv6 Address IPv6 Header ICMPv6 IPv6 ReadyLogo (Phase 2) Certification Netgear IPv6 Spec IPv6 Address IPv6 uses 128 bit address compare to 32 bits for IPv4 Examples of address: 2001:DB8:0000:0000:0202:B3FF:FE1E:8329 (or 2001:DB8::202:B3FF:FE1E:8329 in short) Commonly used address types: Link Local address, FE80::/10 (not route-able) Global unicast address, 2000::/3 (route-able) All routers multicast address, FF02::2 All hosts multicast address, FF02::1 Solicited-node multicast address IPv6 Address Global unicast address Link Local Address IPv6 Address Interface Identifier: Created by MAC address, by default MAC address 00:D0:59:12:34:56 1. Add “FF:FE” in middle: 00D0:59FF:FE12:3456 2. Invert the 7th most significant bit to become Interface ID 02D0:59FF:FE12:3456 3. Link local address of this interface: FE80::02D0:59FF:FE12:3456 IPv6 Address IPv6 Address Types IPv6 Header IPv6 Header format Fixed length: 40 bytes IPv6 Header IPv6 Header fields: Version: 6 Traffic class: same as DSCP in IPv4 Flow label: for QoS applications Payload length: exclude IPv6 header length Next Header: type of header following IPv6 header, e.g. TCP, UDP, ICMP Hop limit: same as TTL in IPv4 Source Address Destination Address ICMPv6 ICMPv6 Integrates these IPv4 functions: ARP, ICMP, IGMP Neighbor Discovery Neighbor Solicitation (similar to ARP request) Neighbor Advertisement (similar to ARP reply) Router Advertisement Router Solicitation Router Advertisement LAN - WDS - WAN LAN - WAN ICMPv6 Neighbor Solicitation ICMPv6 Neighbor Advertisement ICMPv6 Router Solicitation Host send to “all router” multicast address (FF02::2) ICMPv6 Router Advertisement Router responds to “all host” multicast address (or unicast back) IPv6 ReadyLogo Test Test requirements for IPv6 ReadyLogo (Phase 2) Self Tests Interoperability Tests Self Tests performed by Foxconn (RD/SQA) Interoperability Tests currently performed by ChungHwa Telecom After successfully performed both