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Question:
NAT gateways are capable of concealing internal IP addresses from external sources, thereby preventing direct access to systems located behind them. This effectively acts as a firewall for inbound traffic, except for when the gateway is programmed to forward traffic to an internal host upon receiving a specific IP, port, and protocol. However, they do not function as traditional firewalls that statefully block traffic by port and protocol or identify malicious traffic. Additionally, NAT gateways are not used to transmit non-IP traffic to IP networks.
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