Command: ping6 -c 4 -I br_fftr fe80:0000:0000:0000:62e3:27ff:fe76:bbe4

Result:
Array
(
    [0] => PING fe80:0000:0000:0000:62e3:27ff:fe76:bbe4(fe80::62e3:27ff:fe76:bbe4) from fe80::8c20:6fff:fe88:fba5 br_fftr: 56 data bytes
    [1] => 64 bytes from fe80::62e3:27ff:fe76:bbe4: icmp_seq=1 ttl=64 time=31.7 ms
    [2] => 64 bytes from fe80::62e3:27ff:fe76:bbe4: icmp_seq=2 ttl=64 time=127 ms
    [3] => 64 bytes from fe80::62e3:27ff:fe76:bbe4: icmp_seq=3 ttl=64 time=31.8 ms
    [4] => 64 bytes from fe80::62e3:27ff:fe76:bbe4: icmp_seq=4 ttl=64 time=32.2 ms
    [5] => 
    [6] => --- fe80:0000:0000:0000:62e3:27ff:fe76:bbe4 ping statistics ---
    [7] => 4 packets transmitted, 4 received, 0% packet loss, time 3002ms
    [8] => rtt min/avg/max/mdev = 31.766/55.846/127.477/41.356 ms
)