IPV4 to IPV6 Internet not working

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IPV4 to IPV6 Internet not working

L1 Bithead
IPV4 to IPV6 Internet not working
 
We are facing an issue accessing the internet. we have an IPV6 internet connection. we want to access the IPV6 ISP link from the IPV4 LAN subnet. we have created the source NAT policy using NAT64. but unable to access the internet. pls, help.
 
thanks in advance
5 REPLIES 5

L6 Presenter

Thank you for the post @AhamadullahM

 

The purpose of NAT64 is to enable IPv6 only clients to communicate with IPv4 only resources: https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClIFCA0 Based on what you have described, you have opposite scenario. You have IPv4 only client to access IPv6 only network. The NAT64 will unfortunately not work in this case.

 

Kind Regards

Pavel

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Community Team Member

Hi @AhamadullahM ,

 

Is this the scenario you're looking for ?:

 

Configure NAT64 for IPv4-Initiated Communication 

 

I hope it helps,

-Kiwi.

 
LIVEcommunity team member, CISSP
Cheers,
Kiwi
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Thanks for the reply PaveIK,

Could you please let me know, any possible workaround for my scenario? we have to do the source NAT. LAN (IPV4)---to-- ISP(IPV6).

No, We have to look for NAT 46 

 

Thanks for your reply

L6 Presenter

Thank you for the reply @AhamadullahM

 

I am sorry, unfortunately I do not have any hands on experience with NAT46, but on best effort bases I would advice following. Since Palo Alto Firewall does not support NAT46, I would connect IPv6 only ISP link to a router that supports NAT46 (For example Cisco ISR router or Juniper SRX), then let this device do a routing + NAT. The Palo Alto would be connected behind this router for the rest of the functionality (Firewall Features).

If it is technically doable, I would consider dual stack to configure IPv6 between your Firewall and your hosts.

 

Kind Regards

Pavel

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