Command: ping6 -c 4 -I br-ffr fe80:0000:0000:0000:62e3:27ff:febe:9ade

Result:
Array
(
    [0] => PING fe80:0000:0000:0000:62e3:27ff:febe:9ade(fe80::62e3:27ff:febe:9ade) from fe80::649e:f0ff:feb4:30e0 br-ffr: 56 data bytes
    [1] => 64 bytes from fe80::62e3:27ff:febe:9ade: icmp_seq=1 ttl=64 time=78.8 ms
    [2] => 64 bytes from fe80::62e3:27ff:febe:9ade: icmp_seq=2 ttl=64 time=39.8 ms
    [3] => 64 bytes from fe80::62e3:27ff:febe:9ade: icmp_seq=3 ttl=64 time=38.8 ms
    [4] => 64 bytes from fe80::62e3:27ff:febe:9ade: icmp_seq=4 ttl=64 time=46.0 ms
    [5] => 
    [6] => --- fe80:0000:0000:0000:62e3:27ff:febe:9ade ping statistics ---
    [7] => 4 packets transmitted, 4 received, 0% packet loss, time 3005ms
    [8] => rtt min/avg/max/mdev = 38.887/50.887/78.816/16.356 ms
)