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Nat Policy SonicWall TZ170

Posted on 2009-05-13
Medium Priority
Last Modified: 2013-11-16
SonicWall TZ170
OS- Sonic OS Enhanced 2.1.02
Three zones on the firewall: WAN-, LAN-, OPT (DMZ)-

I am trying to set up a NAT policy from the DMZ to the LAN zone and back.  I want machine A ( connected to the OPT port to look like it is coming from the LAN Port ( when it contacts machine b ( on the LAN using ssh.

[] >>> [ OPT-SONICWALL-LAN] >>> []

In the left margin I went to NETWORK>NAT POLICIES> ADD
Original Source:
Translated Source:
Original Destination:
Translated Destination:
Original Service: SSH
Translated Service: SSH
Inbound Interface: ANY
Outbound Interface: ANY

Original Source:
Translated Source:
Original Destination:
Translated Destination:
Original Service: SSH
Translated Service: SSH
Inbound Interface: ANY
Outbound Interface: ANY

It takes the policy without error and looks like it should work.

I also setup firewall rules to allow the traffic from the DMZ to the LAN.

I try to ssh from to and the outgoing packet makes it out of the SonicWall, but it has a source address of   The sonicwall is simply passing the packet through and not changing the source address to  So when gets it it doesn't know what to do with it.  No matter what I try the packet passes through the SonicWall with out it being NATed to

I'm looking for any suggestions on this.  I've tried everything I can think of.    
Question by:credog
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Accepted Solution

KevinCovert earned 1500 total points
ID: 24376892
Try using a translated IP that is not your gateway IP.  

orig        <<>> translated

172.x.x.2 <<>> 10.x.x.3

I would give that a shot first.

Expert Comment

ID: 24437130
How are you doing on this issue?

Author Closing Comment

ID: 31581024
Sorry it took so long to get back to this issue.  We decided to go another way, so I was unable to try your solution.  Thank you for responding.

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