How to set up Excempt NAT in Palo Alto Networks

Reply
Highlighted
L2 Linker

How to set up Excempt NAT in Palo Alto Networks

Hello,

 

I have a VOIP server in the enternal LAN  related to other site . I need to do a NAT to the traffic in the LAN and not this server .

 

How can I set up the exempt NAT in Palo Alto Networks?

 

I add two rules in PAN:

 

First rule : No NAT for the source ( address IP of this server ) destination (WAN)

 

Second rule :: PAT NAT : source (any ) destination (WAN) translated to untrust interface.

 

But always we are blocked to communicate with other servers with those rules.

 

Please i need your help to solve this problem.

 

Thank you very much.

Highlighted
Community Team Member

Hi @ra7oub4,

 

Exempt NAT is done as explained here :

https://live.paloaltonetworks.com/t5/Configuration-Articles/How-To-Create-a-quot-No-NAT-quot-Policy/...

 

Have you verified your NAT is working correctly ? (in the CLI use 'show session ....' to verify the translation)

Do you have the correct allow policies in place ?

 

You may also find this main documentation on nat operations helpful.

https://www.paloaltonetworks.com/documentation/70/pan-os/pan-os/networking/nat.html

 

Hope it helps,

-Kiwi.

Highlighted
L2 Linker

@kiwiThank you very much for your response .

 

The issue is solved by add another rule of NAT in the inverse (from wan to lan ) with "None" action in the translation .

 

Thanks .

 

Have a nice day

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the Live Community as a whole!

The Live Community thanks you for your participation!