Router_A#ping fe80::6c53:689f:8921:7fd1
Output Interface: f 0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FE80::6C53:689F:8921:7FD1, timeout is 2 seconds:
Packet sent with a source address of FE80::20C:CEFF:FE4B:B7A6
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms