R3303-HP HSR6800 Routers Layer 3 - IP Services Configuration Guide

239
Ste
p
Command Remarks
5. Specify the 6to4 tunnel
mode.
tunnel-protocol ipv6-ipv4 6to4
The default mode is GRE. 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.
6to4 tunnel configuration example
Network requirements
As shown in Figure 101, configure a 6to4 tunnel between 6to4 routers Router A and Router B to make
Host A and Host B reachable to each other.
Figure 101 Network diagram
Configuration considerations
To enable communication between 6to4 networks, configure 6to4 addresses for 6to4 routers and hosts
in the 6to4 networks.
• The IPv4 address of GigabitEthernet 2/0/2 on Router A is 2.1.1.1/24, and the corresponding 6to4
prefix is 2002:0201:0101::/48. Assign interface Tu nnel 0 to subnet 2002:0201:0101::/64 and
GigabitEthernet 2/0/1 to subnet 2002:0201: 0101:1::/64.
• The IPv4 address of GigabitEthernet 2/0/2 on Router B is 5.1.1.1/24, and the corresponding 6to4
prefix is 2002:0501:0101::/48. Assign interface Tunnel 0 to subnet 2002:0501:0101::/64 and
GigabitEthernet 2/0/1 to subnet 2002:0501:0101:1::/64.
Configuration procedure
Before configuring a 6to4 tunnel, make sure Router A and Router B can reach each other through IPv4.