为什么“范围链接” IPv6 地址可以通过未处于活动状态的接口进行 ping 操作

为什么“范围链接” IPv6 地址可以通过未处于活动状态的接口进行 ping 操作

[root@2_01 ~]# /sbin/ip -6 地址显示 pubeth0

inet6 2001:1::6/64 scope global
inet6 2001:1::1/64 scope global
inet6 fe80::20c:29ff:fe69:f9e8/64 scope link

[root@v2_01 ~]# /sbin/ip -6 地址显示 pubeth1

inet6 fe80::20c:29ff:fe69:f906/64 scope link

[root@2_01 ~]# ping6 fe80::20c:29ff:fe69:f9e8%pubeth1

PING fe80::20c:29ff:fe69:f9e8%pubeth1(fe80::20c:29ff:fe69:f9e8) 56 data bytes
64 bytes from fe80::20c:29ff:fe69:f9e8: icmp_seq=1 ttl=64 time=0.259 ms
--- fe80::20c:29ff:fe69:f9e8%pubeth1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 286ms
rtt min/avg/max/mdev = 0.259/0.259/0.259/0.000 ms

[root@2_01 ~]# ping6 fe80::20c:29ff:fe69:f9e8%pubeth0

PING fe80::20c:29ff:fe69:f9e8%pubeth0(fe80::20c:29ff:fe69:f9e8) 56 data bytes
64 bytes from fe80::20c:29ff:fe69:f9e8: icmp_seq=1 ttl=64 time=0.057 ms 
--- fe80::20c:29ff:fe69:f9e8%pubeth0 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 390ms
rtt min/avg/max/mdev = 0.057/0.057/0.057/0.000 ms

为什么我可以通过 pubeth1 ping6“fe80::20c:29ff:fe69:f9e8”?

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