port forwarding external to internal
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port forwarding external to internal

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Hi,

i just want to create a "easy" port forwarding rule from external (public ip), port 52516 to a internal server port 52516, but i can´t get it done on a PA-2050. it´s a web-service running on that internal server....

i´ve created a service/application for that tcp-port, i´v created a PBF-Rule and a port-based NAT rule, but it´s not working at all.

is there a guide/howto ?!?

regards

René

10 REPLIES 10

Hi Bob,


To answer your question of why "Source Zone: Internet , Destination Zone: Internet"?  Such a NAT policy would be defined to allow traffic from your Internet Zone to a server on one of your Internal Zones.  NAT policies are created with the pre-NAT IP addresses in mind.  In other words, when configuring NAT rules, we think of how PAN sees the incoming packet before NAT is applied.  Since the source IP will be a random public IP in most cases, PAN knows that public IP addresses are situated on the Internet Zone (because the default route would be pointing out the Internet Zone interface).  Hence we select Internet as the source zone.  For destination zone, when a packet comes in, the destination IP address would also be a public IP address.  Hence we select Internet zone again as the destination zone keeping in mind that before NAT is applied, the destination IP address belongs to the Internet zone interface.

You can refer to the following document for how NAT is setup on PAN:

Example #2 illustrates to to configure NAT for an internal server.  Again the point to remember when configuring NAT rules is: Consider where the pre-NAT ip-addresses are situated with respect to PAN.


Thanks,

Ahsan

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