Why "scope link" ipv6 address can be pinged via interfaces which they are not active on
- by olagu
[root@2_01 ~]# /sbin/ip -6 addr show 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 addr show 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
Why can I ping6 "fe80::20c:29ff:fe69:f9e8" via pubeth1?
