H3C Technologies H3C SecPath F1000-E - Manual (Page 169)

23
To do… Use the command… Remarks
Configure a source address
or interface for the tunnel source { ip-address | interface-type
interface-number }
Required
By default, no source address or
interface is configured for the tunnel.
NOTE:
•
No destination address needs to be configured for an ISATAP tunnel. The destination address of the
tunnel can be automatically obtained through the IPv4 address embedded in the ISATAP address.
• To encapsulate and forward IPv6 packets whose destination address does not belong to the subnet
where the receiving tunnel interface resides, you need to configure a static route to reach the destination
IPv6 address through this tunnel interface on the device. Because automatic tunnels do not support
dynamic routing, you can configure a static route to that destination IPv6 address with this tunnel
interface as the outbound interface or the peer tunnel interface address as the next hop. A similar
configuration needs to be performed at the other tunnel end. For the detailed configuration, see IPv6
Static Routing Configuration in the IP Routing Volume.
• The automatic tunnel interfaces using the same encapsulation protocol cannot share the same source IP
address.
Configuration Example
Network requirements
As shown in Figure 11 , an IPv6 network is connected to an IPv4 network through an ISATAP device. It is
required that the IPv6 host in the IPv4 network can access the IPv6 network through the ISATAP tunnel.
Figure 11 Network diagram for an ISATAP tunnel
IPv6 network
GE1/1
1.1.1.1/8 GE1/2
3001::1/64
ISATAP device
IPv6 host ISATAP host
IPv4 address:2.1.1.2/32
IPv6 address:
FE80::5EFE:0201:0102
2001::5EFE:0201:0102 3002::2/64
IPv4 network
Device
Tunnel0
2001::5EFE:0101:0101/64
Configuration procedure
NOTE:
Make sure that GigabitEthernet 1/1 on the ISATAP device and the ISATAP host are reachable to each
other.
• Configuration on the ISATAP device
# Enable IPv6.
<Device> system-view
[Device] ipv6
# Configure addresses for interfaces.
[Device] interface gigabitethernet 1/2