基于模拟器自身原因，本实验PC3使用路由器模拟

注：如无特别说明，描述中的R1或SW1对应拓扑中设备名称末尾数字为1的设备，R2或SW2对应拓扑中设备名称末尾数字为2的设备，以此类推

实验需求

1. 在R1和PC3上开启IPv6链路本地地址自动生成，测试是否能够使用链路本地地址互通
2. 为R1配置全球单播地址2001::1/64，使PC3能够自动生成与R1同一网段的IPv6地址
3. 测试R1和PC3是否能够使用全球单播地址互通

实验步骤

1.在R1的g0/0接口上开启IPv6链路本地地址自动生成,PC同样设置，并pingR1

[R1]int g0/0

[R1-GigabitEthernet0/0]ipv6 address auto 

[R1-GigabitEthernet0/0]display ipv6 interface b
Interface                                 Physical Protocol IPv6 Address
GigabitEthernet0/0                        up       up       FE80::16CD:62FF:FE85:105

[PC]ping ipv6 -i g0/0 FE80::16CD:62FF:FE85:105
Ping6(56 data bytes) FE80::16CD:63FF:FEF3:205 --> FE80::16CD:62FF:FE85:105, press CTRL+C to break
56 bytes from FE80::16CD:62FF:FE85:105, icmp_seq=0 hlim=64 time=1.435 ms
56 bytes from FE80::16CD:62FF:FE85:105, icmp_seq=1 hlim=64 time=0.834 ms
56 bytes from FE80::16CD:62FF:FE85:105, icmp_seq=2 hlim=64 time=0.602 ms
56 bytes from FE80::16CD:62FF:FE85:105, icmp_seq=3 hlim=64 time=0.444 ms
56 bytes from FE80::16CD:62FF:FE85:105, icmp_seq=4 hlim=64 time=0.649 ms

2.为R1配置全球单播地址2001::1/64，使PC3能够自动生成与R1同一网段的IPv6地址

　　分析：IPv6全球单播地址的自动生成不需要依靠DHCP服务，只需要网段内的路由器具有全球单播地址，并且解除RA消息抑制即可

[R1]int g0/0

[R1-GigabitEthernet0/0]ipv6 address 2001::1 64

[R1-GigabitEthernet0/0]undo ipv6 nd ra halt 

3.查看PC接口信息，并pingR1的IPv6全球单播地址，发现可以Ping通

分析：PC3上已经自动生成了2001::/64网段的IPv6全球单播地址，而且链路本地地址也继续存在，用于网段内部通讯

[PC]display ipv6 int g0/0
GigabitEthernet0/0 current state: UP
Line protocol current state: UP
IPv6 is enabled, link-local address is FE80::16CD:63FF:FEF3:205
  Global unicast address(es):
    2001::16CD:63FF:FEF3:205, subnet is 2001::/64 [AUTOCFG]
      [valid lifetime 2591993s/preferred lifetime 604793s]

[PC]ping ipv6 2001::1
Ping6(56 data bytes) 2001::16CD:63FF:FEF3:205 --> 2001::1, press CTRL+C to break
56 bytes from 2001::1, icmp_seq=0 hlim=64 time=1.365 ms
56 bytes from 2001::1, icmp_seq=1 hlim=64 time=0.502 ms
56 bytes from 2001::1, icmp_seq=2 hlim=64 time=0.769 ms
56 bytes from 2001::1, icmp_seq=3 hlim=64 time=0.621 ms
56 bytes from 2001::1, icmp_seq=4 hlim=64 time=0.859 ms