Command: ping6 -c 4 -I br_fftr fe80:0000:0000:0000:6875:52ff:fe34:a1ea

Result:
Array
(
    [0] => PING fe80:0000:0000:0000:6875:52ff:fe34:a1ea(fe80::6875:52ff:fe34:a1ea) from fe80::6479:75ff:fec6:e50d br_fftr: 56 data bytes
    [1] => From fe80::6479:75ff:fec6:e50d icmp_seq=1 Destination unreachable: Address unreachable
    [2] => From fe80::6479:75ff:fec6:e50d icmp_seq=2 Destination unreachable: Address unreachable
    [3] => From fe80::6479:75ff:fec6:e50d icmp_seq=3 Destination unreachable: Address unreachable
    [4] => From fe80::6479:75ff:fec6:e50d icmp_seq=4 Destination unreachable: Address unreachable
    [5] => 
    [6] => --- fe80:0000:0000:0000:6875:52ff:fe34:a1ea ping statistics ---
    [7] => 4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3052ms
    [8] => 
)