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DES-7200 Configuration Guide Chapter 3 IPv6 Tunnel Configuration
3-11
In the above figure, when Host A and Host B send the router solicitation message to
ISATAP Router, ISATAP Router will respond with a router advertisement message.
After receiving the message, the hosts will automatically perform self-configuration and
generate their own ISATAP addresses respectively. Then, the IPv6 communication
between Host A and Host B will be done via the ISATAP tunnel. When Host A or Host B
need communicate with the IPv6 host outside the site, Host A sends the message to
the ISATAP router RT-A via the ISATAP tunnel and then RT-A forwards the message to
the IPv6 network.
In the above figure, ISATAP Router (RT-A) is configured as follows:
# Connect the interfaces of the IPv4 network
interface FastEthernet 0/1
no switchport
ip address 192.168.1.1 255.255.255.0
# Configure the ISATAP tunnel interface
interface Tunnel 1
tunnel mode ipv6ip isatap
tunnel source FastEthernet 0/1
ipv6 address 2005:1::/64 eui-64
no ipv6 nd suppress-ra
# Connect the interfaces of the IPv6 network
interface FastEthernet 0/2
no switchport
ipv6 address 3001::1/64
# Configure the route to the IPv6 network
ipv6 route 2001::/64 3001::2