https://www.xiongan.host/index.php/tag/ipv6/ https://www.xiongan.host/index.php/archives/189/ 2022-12-13T16:45:00+08:00 IPv6地址表示冒分十六进制表示法格式为X:X:X:X:X:X:X:X，其中每个X表示地址中的16b，以十六进制表示 例如：ABCD:EF01:2345:6789:ABCD:EF01:2345:6789 这种表示法中，每个X的前导0是可以省略的0位压缩表示法在某些情况下，一个IPv6地址中间可能包含很长的一段0，可以把连续的一段0压缩为“::”。但为保证地址解析的唯一性，地址中”::”只能出现一次 例如FF01:0:0:0:0:0:0:1101 → FF01::1101 0:0:0:0:0:0:0:1 → ::1 0:0:0:0:0:0:0:0 → ::内嵌IPv4地址表示法为了实现IPv4-IPv6互通，IPv4地址会嵌入IPv6地址中，此时地址常表示为：X:X:X:X:X:X:d.d.d.d，前96b采用冒分十六进制表示，而最后32b地址则使用IPv4的点分十进制表示，例如::192.168.0.1与::FFFF:192.168.0.1就是两个典型的例子，注意在前96b中，压缩0位的方法依旧适用配置一个小型ipv6网络R1和R2之间使用静态ipv6地址互联R1-R4的全局和相关接口都使用ipv6功能，同事生成本地链路地址（R1为例）[R1]ipv6 [R1]int g0/0/0 [R1-GigabitEthernet0/0/0]ipv6 enable [R1-GigabitEthernet0/0/0]ipv6 address auto link-local[R1-GigabitEthernet0/0/0]dis this [V200R003C00] # interface GigabitEthernet0/0/0 ipv6 enable ipv6 address 2001::1/64 ipv6 address auto link-local # return[R2]int g0/0/0 [R2-GigabitEthernet0/0/0]dis this [V200R003C00] # interface GigabitEthernet0/0/0 ipv6 enable ipv6 address 2001::2/64 ipv6 address auto link-local # return [R2-GigabitEthernet0/0/0]int g0/0/1 [R2-GigabitEthernet0/0/1]dis this [V200R003C00] # interface GigabitEthernet0/0/1 ipv6 enable ipv6 address 2002::1/64 ipv6 address auto link-local dhcpv6 server pool1 # return [R2-GigabitEthernet0/0/1]int g0/0/2 [R2-GigabitEthernet0/0/2]dis this [V200R003C00] # interface GigabitEthernet0/0/2 ipv6 enable ipv6 address 2003::1/64 ipv6 address auto link-local undo ipv6 nd ra halt # return在R2上配置dhcpv6功能给R3分配地址[R2]dhcp enable [R2]dhcpv6 pool pool1 [R2-dhcpv6-pool-pool1]dis this [V200R003C00] # dhcpv6 pool pool1 address prefix 2002::/64 # return [R2-dhcpv6-pool-pool1]int g0/0/1 [R2-GigabitEthernet0/0/1]dis this [V200R003C00] # interface GigabitEthernet0/0/1 ipv6 enable ipv6 address 2002::1/64 ipv6 address auto link-local dhcpv6 server pool1 # return[R3]dhcp enable [R3-GigabitEthernet0/0/0]dis this [V200R003C00] # interface GigabitEthernet0/0/0 ipv6 enable ipv6 address auto link-local ipv6 address auto dhcp # return在R2使能发布RA报文的功能R4无状态地址配置的方法获取地址[R2-GigabitEthernet0/0/2]dis this [R2-GigabitEthernet0/0/2]undo ipv6 nd ra halt [R4]int g0/0/0 [R4-GigabitEthernet0/0/0]dis this [V200R003C00] # interface GigabitEthernet0/0/0 ipv6 enable ipv6 address auto link-local ipv6 address auto global # return在R4上配置静态地址[R4]ipv6 route-static 2001:: 64 2003::1 [R4]ipv6 route-static 2002:: 64 2003::1在R1配置聚合后的静态路由[R1]ipv6 route-static 2002:: 15 2001::2在R3配置默认路由[R3]ipv6 route-static :: 0 2002::1测试结果