通过 CCNA 练习考试的练习，我遇到了一个需要在所有接口上配置链接本地地址的示例。在路由器 1上，所有接口都设置为FE80::1作为本地链路。在路由器 2上，所有接口都设置为FE80::2作为本地链路。

是否需要在路由器接口上设置唯一的链路本地地址？我可以将FE80::1分配给路由器 2接口吗？

!!!! Script for R1 !!!!
ena
conf t
ipv6 unicast-routing
interface g0/0
ip address 172.16.1.1 255.255.255.0
ipv6 address 2001:db8:1:1::1/64
ipv6 address fe80::1 link-local
no shutdown
interface g0/1
ip address 172.16.2.1 255.255.255.0
ipv6 address 2001:db8:1:2::1/64
ipv6 address fe80::1 link-local
no shutdown
interface s0/0/0
ip address 10.10.10.1 255.255.255.252
ipv6 address 2001:db8:f:f::1/64
ipv6 address fe80::1 link-local
no shutdown
end
copy running-config startup-config

!!!! Script for R2 !!!!
ena
conf t
ipv6 unicast-routing
interface g0/0
ip address 192.168.3.1 255.255.255.0
ipv6 address 2001:db8:2:3::1/64
ipv6 address fe80::2 link-local
no shutdown
interface g0/1
ip address 192.168.4.1 255.255.255.0
ipv6 address 2001:db8:2:4::1/64
ipv6 address fe80::2 link-local
no shutdown
interface s0/0/0
ip address 10.10.10.2 255.255.255.252
ipv6 address 2001:db8:f:f::2/64
ipv6 address fe80::2 link-local
no shutdown
end
copy running-config startup-config