ipv6地址分类

 

 

 

 

 

 

 

 

FE80

F=8+4+2+1=15=1111  E=1110=8+4+2=14=1110  8= 1000=8  1011=8+2+1=B0          

 

 

 

 

 

 

 通过第三种方法配置自动获取IPV6地址 ：

[R1-GigabitEthernet0/0/0]  ipv6 address auto global 

 

 

 

 

 

需要在对端配置与本端不存在相同网段的IP，并配置IPV6自动下发功能，本端才能获取到第二个IPV6地址

 

 undo ipv6 nd ra halt

 

 

[R1-GigabitEthernet0/0/0]ipv6 address 3005::1 64 anycast

[R1-GigabitEthernet0/0/0]ipv6 address 3006:: 64 eui-64                    自动生成的地址
[R1-GigabitEthernet0/0/0]display ipv6 interface g0/0/0
GigabitEthernet0/0/0 current state : UP
IPv6 protocol current state : UP
IPv6 is enabled, link-local address is FE80::2E0:FCFF:FEED:46AC
Global unicast address(es):
2001::1, subnet is 2001::/64
3005::1, subnet is 3005::/64 [ANY]
3006::2E0:FCFF:FEED:46AC, subnet is 3006::/64
Joined group address(es):
FF02::1:FFED:46AC
FF02::2
FF02::1
FF02::1:FF00:1
MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
Hosts use stateless autoconfig for addresses
[R1-GigabitEthernet0/0/0]

链路本地地址也可以通过EUI或手动生成