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Define a range of IP addresses that are hidden from the
public internet. NAT modifies network address
information in the defined IP range while in transit
across a traffic routing device. NAT only provides IP
address translation and does not provide a firewall. A
branch deployment with NAT by itself will not block
traffic from potentially being routed through a NAT
device. Consequently, NAT should be deployed with a
stateful firewall.
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