Configure Destination NAT with DNS Rewrite

Create a destination NAT policy rule for static translation that also rewrites the IPv4 address in a DNS response based on the original or translated destination address of the NAT rule.
Beginning with PAN-OS 9.0.2 and in later 9.0 releases, when you configure a destination NAT policy rule that performs static translation of IPv4 addresses, you can also configure the rule so that the firewall rewrites the IPv4 address in a DNS response based on the original or translated IP address configured for the rule. The firewall performs NAT on the IPv4 address (the FQDN resolution) in a DNS response (that matches the rule) before forwarding the response to the client; thus, the client receives the appropriate address to reach the destination service.
View the DNS rewrite use cases to help you determine whether to specify that the rewrite occur in the reverse or forward direction.
You cannot enable Bi-directional source address translation in the same NAT rule where you enable DNS rewrite.
  1. Create a destination NAT policy rule that specifies the firewall perform static translation of IPv4 addresses that match the rule, and also specifies the firewall rewrite IP addresses in DNS responses when that IPv4 address (from the A Record) matches the original or translated destination address in the NAT rule.
    1. Select PoliciesNAT and Add a NAT policy rule.
    2. (Optional) On the General tab, enter a descriptive Name for the rule.
    3. For NAT Type, select ipv4.
    4. On the Original Packet tab, for Source Zone, Add the appropriate zone
    5. For Destination Zone, select the appropriate zone.
    6. (Optional) AddSource Address, Destination Address, Destination Interface, and/or Service to further define the rule.
    7. On the Translated Packet tab, for Destination Address Translation, select Translation Type to be Static IP.
    8. On the Translated Packet tab, for Destination Address Translation, select Translation Type to be Static IP.
    9. Enable DNS Rewrite and select a Direction:
      • Select reverse (default) when the IP address in the DNS response requires the opposite translation that the NAT rule specifies.
      • Select forward when the IP address in the DNS response requires the same translation that the NAT rule specifies.
    10. Click OK.
  2. Commit your changes.

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