Overload and Fixed IP Nat rule

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Overload and Fixed IP Nat rule

L0 Member

Hello, i am trying to do somehting that hosuld be very simple and straight forward but for some reasons, its not working.

My customer has two internet connections : ADSL and IP-SHDSL used as below :

ADSL router used for all browsing (from all users ) -copnnected to ethernet 1/1

IP-SHDSL Router used only for  Fixed IP services :- Exchange Server and SQL Server - connected to ethernet 1/4

Exchange has a public IP of and internal IP of

SQL Has a Public IP of and internal IP of

I am trying to configure the PA-500 so that all users go out to internet via the ADSL connection (workign wonderfully)

But I want traffic from the Exchange and the SQL to go out to internet via the IP-SHDSL with their public IP address, this part is not working at all.

any ideas  out there ?



Not applicable

Policy Base Forwarding rules are there for that

Rule 1: Exchange server to internet will exit on SDSL interface

Rule 2: Exchange server to internet will exit on SDSL interface

Rule 3: all other traffic to internet will exit on cheap internet line

Have tried that, but not working...

Did you also create bi-directional NAT rules for SQL and mail server?

You should post a screenshot of your filetring rules, PBF, NAT and network interfaces. I have some use case with 3 internet lines and no problem....

See attached configuration snapshot.

Sorry, I had added this long comment then discovered you had set the rules to bi-directional.


I noticed your PBF rules lack a next hop

You'll need this next hop IP to route your traffic out to the next router so it will be able to go out to the internet.



Tom Piens

I have corrected that give the IP address of the SDSL router, but still it does not go through.

i do a simple tracer from the Ex server to outside and i see that the trace hangs on reaching the PAN ( after that it seems it can't get the route tight.

Uploading some new configuration so you can see exactly what I have and where i might have gone wrong.


Hello, Please open a case with support if you continue to have problems and we can take a detailed look.


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