SonicWall TZ180 Enhanced NATING

I have a TZ180 with enhanced OS. It has an SBS 2003 Server behind it and everything works great.  

I have an IPAd that I use both internally on the network and externally while travelling. The Ipad is using the URL to access the exchange server remotely with no issues. When I am internal to the network on the WIreless LAN with the same IP subnet as the server, 192.168.10.x, the URL does not work when inside the network.  I have created a NAT rule below:

Source          trans     Destination           Server LAN IP   Services        
LANSubnets Original "WAN Primary IP" ServerPrivate ServerServices Original Any Any

I am able to Ping the URL and it comes back with the My SBS server responding so that NAT rule works. I have tried to create another rule for the server, but can't figure out the correct rule to do this. I have not modified any Firewall Access Rules and I have not created any routes.

The DNS server that controls the URL is on the internet, so the SBS server doesn't do DNS for the external domain name.

Can someone give me detailed settings that I should put in the firewall.

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Try using   192.168.10.x/owa  
It may not be adding that automatically with the IP number.
Worth a try.
COMTECNYAuthor Commented:
If I change the URL to the local IP of the server, it works fine. I just want to make the firewall handle the Nat inside the firewall so the IPad URL.doesn't have to change.
Aaron TomoskyDirector of Solutions ConsultingCommented:
Does resolve to the Wan ip exactly or to a different one in your group of wan ips?
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COMTECNYAuthor Commented:
It resolves to my wan IP. I only have one IP.
You need to create a loopback. Try this:

Original Source: Lan Subnets
Translated Source: Public IP
Destination Original: Public IP
Translated Destination: Private IP of your SBS

Make sure Original Source is either LAN subnets or firewalled subnets. Also, if you use the Public Server Wizard to open ports on the firewall, it creates the loopback for you.

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Aaron TomoskyDirector of Solutions ConsultingCommented:
As a rule I always start with the public server wizard just for this purpose. Then I change the services in the group to what I need.
COMTECNYAuthor Commented:
I will try digitaps suggestion.

Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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