H3C Technologies H3C S7500E Series Switches - Manual (Page 173)

15-16
To do… Use the command… Remarks
ipv6 address { ipv6-address
prefix-length |
ipv6-address/prefix-length }
Configure an
IPv6 global
unicast
address or a
site-local
address
ipv6 address
ipv6-address/prefix-length eui-64
Required.
Use either command.
By default, no IPv6 global unicast
address or site-local address is
configured for the tunnel interface.
ipv6 address auto link-local
Configure an
IPv6 address
for the tunnel
interface
Configure an
IPv6 link-local
address
ipv6 address ipv6-address
link-local
Optional
By default, a link-local address will
automatically be generated when an
IPv6 global unicast address or site-local
address is configured.
Specify the 6to4 tunnel mode tunnel-protocol ipv6-ipv4 6to4
Required
By default, the tunnel is a GRE over
IPv4 tunnel. The same tunnel mode
should be configured at both ends of the
tunnel. Otherwise, packet delivery will
fail.
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.
z No destination address needs to be configured for a 6to4 tunnel because the destination address
can automatically be obtained from the IPv4 address embedded in the 6to4 IPv6 address.
z To encapsulate and forward IPv6 packets whose destination address does not belong to the
network segment where the receiving tunnel interface resides, you need to configure a static route
or dynamic routing for forwarding those packets through this tunnel interface. 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 as the next
hop. A similar configuration needs to be performed at the other tunnel end. For the detailed
configuration, refer to IPv6 Static Routing Configuration or other routing protocol configurations in
the Layer 3 - IP Routing Configuration Guide.
z The automatic tunnel interfaces using the same encapsulation protocol cannot share the same
source IP address.