NAT-PT problem

[Blendeman]

Hi,

I have configured NAT-PT communication between an IPv4 and IPv6 site but I'm unable to ping.

If i try to ping, I see the translation on my NAT-PT router but it doesn't works. So, I thought it was a problem with my routing but thats ok: if a set an IPv4 address on my IPv6 site the ping is succesfull.

This icmp error is show:

*Mar 21 11:28:19.547: %IPV6_FORWARDING-3-NULLIDB: Uninitialized interface pointer - ipv6_fib_forw -Process= "Exec", ipl= 0, pid= 3, -Traceback= 0x62153194z 0x61910C98z 0x61C3D874z 0x61C3D9BCz 0x621ED9A4z 0x621EDB5Cz 0x621EDC74z 0x621EDD50z 0x62151E5Cz 0x62153724z 0x6214A818z 0x6217A1ECz 0x6217A8A4z 0x6217AE60z 0x6218CA88z 0x61595C1Cz.

This is NAT-PT config:

ipv6 nat v4v6 source 192.168.40.15 3800::C0A8:280F

ipv6 nat v6v4 source list v6tov4 pool IPv4_pool

ipv6 nat v6v4 pool IPv4_pool 10.10.40.2 10.10.40.254 prefix-length 24

ipv6 nat prefix 3800::/96

ipv6 router rip RIP_Tunneling

!

!

!

!

!

!

!

ipv6 access-list v6tov4

sequence 20 permit ipv6 FD00:1:1:40::/64 any

and NAT is enabled on my interfaces..

Any solution for this problem? Or is it a bug in my ios (c2801-advipservicesk9-mz.124-24.T2.bin)?

Thanks in advance..

[dario.didio]

Hi,

Looking at your log output, it seems like a traceback ==> chances are it is a software related issue.

I would suggest to upgrade to version 15.X which has far better IPv6 support.

Try upgrading and if the problem persists, we can look deeper into it.

Good luck.

Br,

Dario