H3C Technologies H3C S7500E Series Switches - Manual (Page 178)

15-21
Configuration Example
Network requirements
As shown in Figure 15-10 , an IPv6 network is connected to an IPv4 network through an ISATAP switch.
The destination address of the tunnel is an ISATAP address. It is required that IPv6 hosts in the IPv4
network can access the IPv6 network through the ISATAP tunnel.
Figure 15-10 Network diagram for an ISATAP tunnel
IPv6 network
Vlan-int101
1.1.1.1/8 Vlan-int100
3001::1/64
Switch
ISATAP switch
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
Tunnel0
2001::5EFE:0101:0101/64
Service loopback port
GE2/0/3
Configuration procedure
z Make sure that the corresponding VLAN interfaces have been created on the switch.
z Make sure that VLAN-interface 101 on the ISATAP switch and the ISATAP host are reachable to
each other.
z Configuration on the switch
# Enable IPv6.
system-view
[Switch] ipv6
# Configure addresses for interfaces.
[Switch] interface vlan-interface 100
[Switch-Vlan-interface100] ipv6 address 3001::1/64
[Switch-Vlan-interface100] quit
[Switch] interface vlan-interface 101
[Switch-Vlan-interface101] ip address 1.1.1.1 255.0.0.0
[Switch-Vlan-interface101] quit
# Configure an ISATAP tunnel.
[Switch] interface tunnel 0
[Switch-Tunnel0] ipv6 address 2001::5efe:0101:0101 64
[Switch-Tunnel0] source vlan-interface 101
[Switch-Tunnel0] tunnel-protocol ipv6-ipv4 isatap
# Disable the RA suppression so that hosts can acquire information such as the address prefix from
the RA message released by the ISATAP switch.
[Switch-Tunnel0] undo ipv6 nd ra halt
[Switch-Tunnel0] quit