R2511-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V5)

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Configuring a 6to4 tunnel
Configuration prerequisites
Configure an IP address for the interface (such as a VLAN interface, Ethernet interface, or loopback
interface) to be configured as the source interface of the tunnel interface..
Configuration guidelines
Follow these guidelines when you configure a 6to4 tunnel:
• No destination address needs to be configured for a 6to4 tunnel because the destination IPv4
address is embedded in the 6to4 IPv6 address.
• Because automatic tunnels do not support dynamic routing, you must configure a static route
destined for the destination IPv6 network at each tunnel end. You can specify the local tunnel
interface as the output interface of the route or specify the IPv6 address of the peer tunnel interface
as the next hop of the route. For the detailed configuration, see Layer 3—IP Routing Configuration
Guide.
• The automatic tunnel interfaces using the same encapsulation protocol cannot use the same source
IP address.
Configuration procedure
To configure a 6to4 tunnel:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable IPv6.
ipv6
By default, the IPv6 packet
forwarding function is disabled.
3. Enter tunnel interface
view.
interface tunnel number N/A
4. Configure an IPv6
address for the tunnel
interface.
• Configure an IPv6 global unicast
address or a site-local address:
{ ipv6 address { ipv6-address
prefix-length |
ipv6-address/prefix-length }
{ ipv6 address
ipv6-address/prefix-length
eui-64
• Configure an IPv6 link-local
address:
{ ipv6 address auto link-local
{ ipv6 address ipv6-address
link-local
The IPv6 link-local address
configuration is optional.
By default:
• No IPv6 global unicast address or
site-local address is configured
for the tunnel interface.
• A link-local address is
automatically generated when an
IPv6 global unicast address or
site-local address is configured.
5. Specify the 6to4 tunnel
mode.
tunnel-protocol ipv6-ipv4 6to4
The same tunnel mode should be
configured at both ends of the tunnel.
Otherwise, packet delivery fails.