For example, the IPv6 prefix is 2001::/64 and the embedded IPv4 address is 192.168.1.1. In
the ISATAP address, the IPv4 address is denoted as the hexadecimal numeral of
C0A8:0101. Therefore, its corresponding ISATAP address is as follows:
2001::0000:5EFE:C0A8:0101
33.2 IPv6 Tunnel Configuration
33.2.1 Configuring Manual IPv6 Tunnels
This section explains how to configure manual tunnels.
To configure a manual tunnel, configure an IPv6 address on the tunnel interface and
manually configure the source interfaceand destination interfaceIPv4 addresses of the
tunnel. Then, configure the hosts or routers at the two ends of the tunnel to ensure that they
support the dual stacks (the IPv6 and IPv4 protocol stacks).
Be sure not to configure a manual tunnel with a same address as tunnel
source and tunnel destination addresses on a switch.
Brief steps
config terminal
interface tunnel tunnel-num
tunnel mode ipv6ip
ipv6 enable
tunnel source {ip-address | type num}
tunnel destination ip-address
end
Detailed steps
Specify a tunnel interface number to create a tunnel
interface and enter the interface configuration mode.
Enable the IPv6 function of the interface. You can also
configure the IPv6 address to directly enable the IPv6
function of the interface.