Friday, February 21, 2014

SonicWall NSA NAT Field Explained

Original Source
This drop-down is used to identify the Source IP address(es) in the packet crossing the SonicWALL, whether it be across interfaces, or into/out-of VPN tunnels. You can use the dynamic address objects in the SonicWALL, or you can create your own entries. These entries can be single host entries, address ranges, or IP subnets.

Translated Source
This drop-down is what the SonicWALL will translate the specified ‘Original Source’ to as it exits the SonicWALL, whether it be to another interface, or into/out-of VPN tunnels. You can use the dynamic address objects in the SonicWALL, or you can create your own entries. These entries can be single host entries, address ranges, or IP subnets.

Original Destination
This drop-down is used to identify the Destination IP address(es) in the packet crossing the SonicWALL, whether it be across interfaces, or into/out-of VPN tunnels. When creating outbound NAT policies, this entry is usually set to ‘Any’, since the destination of the packet is not being changed, but the source is being changed. However, these entries can be single host entries, address ranges, or IP subnets.

Translated Destination
This drop-down is what the SonicWALL will translate the specified ‘Original Destination’ to as it exits the SonicWALL, whether it be to another interface, or into/out-of VPN tunnels. When creating outbound NAT policies, this entry is usually set to ‘Original’, since the destination of the packet is not being changed, but the source is being changed. However, these entries can be single host entries, address ranges, or IP subnets.

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