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Sonicwall Setup

Posted on 2014-04-01
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What's the meaning of the NAT policies #30 ? What's the meaning for Interface Inbound & Outbound in the attached file ?

Is there any example on setting up a VPN connection before two sites with NSA 3600 and NSA 4600 ?

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Question by:AXISHK
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by:carlmd
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The referenced NAT says that a packet entering the X7 interface is translated to the X2IP as is leaves the Sonciwall on the X2 interface. For a more detailed explanation of the column heading on the NAT Policies page use the Help button on that page.

Regarding the VPN, I assume you mean a site to site VPN. The easiest way to set this up is to use the Wizard (upper right hand corner)  -> VPN Wizard -> Site-to-Site. Then answer the questions, and it will set this up for you. Please note that you MUST do this on each of the two Sonicwalls for this to work. If you don't want to go all the way, just look, just say no to the last question where it shows you what it will do and asks for your ok.
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by:AXISHK
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To test my understanding :

On rule #32, a packet entering the X0 (LAN) interface is translated to X2 (WAN) IP and leaves the Sonicwall on X2 inteface.  Correct ?

But how does it know to route the translated packet to X2 ?
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carlmd earned 500 total points
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Yes. Based upon the destination address it uses a routing table to determine where to send the packet.  If the address is not on one of you local interfaces with rules permitting such, then it sends it via the default gateway, that is X2. By default everything is permitted from the LAN to the WAN unless you specifically restrict it.
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by:AXISHK
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So, incoming packet comes in,  source & destination NAT, then route based on routing table.. is that the normal sequence flow ?

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by:carlmd
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Yes
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by:AXISHK
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