Xin hướng dẫn NAT IPv4<-> IPv6 ?

[chuongngd]

Mình cấu hình Static NAT như sau, sau khi cấu hình xong thì không ping được giữa 2 side V4 và V6, bạn nào chỉ giúp với ?

Router6#sh run
Building configuration...

Current configuration : 574 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router6
!
!
!
ipv6 unicast-routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2001:A:B:C::1/64
ipv6 mtu 1500
ipv6 enable
ipv6 nat
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
ipv6 route 2001:A:B:C::/64 2001:A:B:C::3
!
!
!
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
!
end

Router_NAT#sh run
Building configuration...

Current configuration : 627 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router_NAT
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2001:A:B:C::3/64
ipv6 nat
!
interface FastEthernet0/1
ip address 192.168.40.199 255.255.255.0
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
!
ipv6 nat v6v4 source 2001:A:B:C::1 192.168.40.1
ipv6 nat v4v6 source 192.168.40.200 2001::C0A8:28C8
ipv6 nat prefix 2001::/96
!
!
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
!
end


Router4#sh run
Building configuration...

Current configuration : 467 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router4
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.40.200 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
!
!
!
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
!
end

Router6#ping 2001::c0a8:28c8

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001::c0a8:28c8, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)


Bạn nào chỉ giúp mình với! Thanks all!