Configuring Nat Mode Gateway - Dell SuperMassive 9200 Getting Started Manual

Configuring NAT Mode Gateway

This section provides an overview of a Dell SonicWALL
SuperMassive 9200 appliance operating as a single network
gateway in NAT mode, which is the default mode for a newly
configured SuperMassive 9200. This section is relevant to
administrators following deployment Scenario A.
Note: No additional configuration is necessary to deploy your
appliance as a single network gateway in Many-to-One
NAT mode.
Overview of NAT Mode
Network Address Translation (NAT) allows private IP addresses
on internal networks to be mapped to at least one public IP
address on the WAN interface of the Dell SonicWALL security
appliance. Outbound traffic from the internal network uses
many-to-one NAT address mappings for their LANs, WLANs,
and other internal networks.
All traffic in SonicOS must go through both an access rule and a
NAT policy, a fundamental part of the NAT Mode architecture.
The NAT policy is even used for traffic that needs no IP address
translation, such as traffic traveling between two different LAN
interfaces, traffic on the simplest types of VPNs, or through
Layer 2 Bridge Mode / Transparent Mode configurations.
36 | Configuring NAT Mode Gateway
Dell SonicWALL SuperMassive
SonicWALL Supermassive 9200
X16
DMZ Zone
WLAN Zone
The Dell SonicWALL SuperMassive 9200 ships with the internal
DHCP server active on the LAN port. However, if a DHCP
server is already active on your LAN, the Dell SonicWALL
appliance will disable its own DHCP server to prevent conflicts.
As shown in the illustration on this page, ports X1 and X0 are
preconfigured as WAN and LAN, respectively. The remaining
ports (X2-X17) can be configured to meet the needs of your
network. In the example diagram, certain interfaces are
configured for specific zones:
• X1—WAN
• X0—LAN
• X8—Wireless LAN
• X16—DMZ
10GE 1GE 1GE
X16 X14 X12 X10 X8 X6 X4 X2 X0
SDHC
M0
BYPASS
ALARM STATUS
TEST
PWR 1
CONSOLE MGMT X17 X15 X13 X11 X9 X7 X5 X3 X1
X1
X0
X8
LAN Zone
Internet