Example: 2001:0db8:0000:0001:f8f3:a7bb:2bcb:6037
To make it easier to remember and type an IPv6 address, you can use one instance of a double colon (::) to indicate multiple contiguous sections of zeros. You can also omit leading zeroes. For example, you can simplify the address: 2001:0db8:0000:0001:f8f3:a7bb:2bcb:6037
to 2001:db8:0:1:f8f3:a7bb:2bcb:6037
or 2001:db8::1:f8f3:a7bb:2bcb:6037
.
2001:db8:0:1:f8f3:a7bb:2bcb:6037
.fe80::20c:29ff:fed4:5ab%4
.fe80::5efe:192.168.6.154
tunnels the IPv4 address 192.168.6.154
.