How can I setup a Firewall without NAT?

Posted by SRobertJames on Server Fault See other posts from Server Fault or by SRobertJames
Published on 2011-01-16T17:09:19Z Indexed on 2011/01/16 17:54 UTC
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We have 16 IP addresses from our ISP, and are setting up a SonicWall Firewall. I'd like to have the SonicWall do NAT for the LAN, but act as a firewall only (no NAT) for the servers which are using some of the 16 addresses. How do I set this up? If I set the WAN's subnet to include the 16 IPs, the SonicWall won't route the traffic to the LAN interface. Should I set the WAN subnet to only include the ones we are dedicating for NAT, and then keep the others on the LAN?

Related point: How can I set multiple IP addresses for a SonicWall LAN interface?

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