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A small business is configuring their edge router to allow multiple devices to access the internet using a single public IP address. Which of the following techniques should they implement to achieve this?
Dynamic Host Configuration Protocol (DHCP)
Dynamic routing
Port address translation (PAT)
VLAN tagging
The correct technique to implement in this scenario is Port Address Translation (PAT).
Port Address Translation allows multiple devices on a local network to share a single public IP address when accessing the internet. PAT works by assigning a unique port number to each outgoing connection, so the edge router can track and manage traffic between internal private IP addresses and external public IP communications. This makes it especially useful for small businesses with limited public IPs.
The other options are not suitable for this specific use case:
Therefore, Port Address Translation (PAT) is the correct choice.
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