Examples

ping command
needs no option to handle link-local addresses
 % ping6 fe80::290:27ff:fe3c:1817@ef0
 PING6(56=40+8+8 bytes) fe80::2a0:24ff:fe66:1350 --> fe80::290:27ff:fe3c:1817
 16 bytes from fe80::290:27ff:fe3c:1817@ef0, icmp_seq=0 hlim=64 time=0.784 ms

output of netstat -rn command
Internet6:
Destination                       Gateway                       Flags  Intface
default                           fe80::5254:ff:fedc:5217@ef0   UG      ef0

telnet command
 % telnet fe80::5254:ff:fedc:5217@ef0
Trying fe80::5254:ff:fedc:5217...
Connected to fe80::5254:ff:fedc:5217@ef0.
Escape character is '^]'.
 ...