nat64 stateless ping is not working

[sachin30720041]

Hello All,

I am trying to configure nat64 stateless

R1-------------(g1)R2(g2)------------R3

R1
--------------------
ipv6 unicast-routing
int gi1
ipv6 enable
ipv6 address 2001:face::1/64
no sh

ipv6 route ::/0 2001:FACE::2

R2
---------------------
ipv6 unicast-routing
int gi1
ipv6 address 2001:face::2/64
ipv6 enable
nat64 enable
no sh

int gi2
ip address 100.20.30.2 255.255.255.0
nat64 enable
no sh

nat64 prefix stateless 2020::/96
nat64 route 100.20.30.0/24 GigabitEthernet1

R3
---------------------
int gi2
ip address 100.20.30.3 255.255.255.0
no sh

When I ping from R1 to R3 I get the following response.

R1# ping 2020::6414:1E03
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2020::6414:1E03, timeout is 2 seconds:
SSSSS
Success rate is 0 percent (0/5)

What configuration am I missing for stateless nat64?

Thanks,

Sachin

[MHM Cisco World]

follow

[MHM Cisco World]

Important troubleshooting commands in case we run into any issue during NAT64 implementation

#show platform hardware qfp active statistics drop ( to see if there are any nat64 drops)

#show running-config | include nat64 ( to see if everything is configured on IOS)

#show platform hardware qfp active feature nat64 datapath statistics(to check the reason for drop counter)

#show platform hardware qfp active feature nat64 datapath pool (to check pool is configured properly)

#show platform hardware qfp active feature nat64 datapath map (to check and see pool to mapping config is done properly)

#show platform software object-manager F0 pending-ack-update (to check if there are any pending objects)

[Flavio Miranda]

Not sure if you did not show all the config or if you have config missing. 

Take a look on this video

https://www.youtube.com/watch?v=cAdZoAS9dmE 

[sachin30720041]

Thanks for responding .Video is for configuring stateful nat64. I am trying to configure stateless nat64.

[Harold Ritter · Accepted solution]

Hi @sachin30720041 ,

For NAT64 stateless to work, both the source and destination IPv6 address need to have an embedded IPv4 address. In your configuration, only the destination has an embedded IPv4 address. Refer to this configuration example describing the NAT64 stateless mechanism.

https://community.cisco.com/t5/networking-documents/stateless-ipv6-nat64-configuration/ta-p/3118765

Regards,