HP VPN Firewall Appliances VPN Configuration Guide

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• 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 Network Management
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 default tunnel mode is GRE
over IPv4 mode. The same tunnel
mode should be configured at
both ends of the tunnel.
Otherwise, packet delivery fails.
6. Configure a source address
or interface for the tunnel.
source { ip-address | interface-type
interface-number }
By default, no source address or
interface is configured for the
tunnel.
7. Return to system view.
quit N/A
8. Enable dropping of IPv6
packets using
IPv4-compatible IPv6
addresses.
tunnel discard
ipv4-compatible-packet
Optional.
The default setting is disabled.