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SonicWall NAT Policies - Basic Quick Question on How They're Setup

Posted on 2012-03-23
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Last Modified: 2012-03-26
I come from more of a Cisco world, so looking at the NAT policies on a SonicWall, when I'm in a time-crunch, is a bit confusing.

This SonicWall is out of state, and is about to be replaced by an ASA 5510, and I'd ideally like to ship it out today. It's close to being fully setup, but I just need to set up the static NAT rules.

I've attached a screenshot of an example I'd like clarification. My confusion lies in the original and translated categories for source, destination, etc. On my example, what exactly is going on?
Capture.JPG
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Question by:Tercestisi
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smckeown777 earned 2000 total points
ID: 37759278
Hi, this is basically a Loopback NAT Policy which is common on the Sonicwall devices, its basically allowing an internal LAN device to access a service(HTTPS for example) using the Public WAN IP

Eg. You have an exchange server internally at 192.168.1.25
Your WAN Public IP is 87.x.x.x

From the LAN side you normally access the exchange server using its LAN IP, but with the Loopback policy you can use the Public WAN IP to access the same service only from the inside...

Hope I've explained it correctly!
If not I'm sure there'll be corrections ;)
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Author Closing Comment

by:Tercestisi
ID: 37767892
Cool beans; thanks for the clarification!
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