A home network is using NAT on the router connecting it to the internet. The PCs on the home network receive private IP addresses through DHCP. When a PC sends a packet to a web server on the internet, what is the source IP address in the packet header when it arrives at the web server?

IT Questions Bank › Category: Networking Basics › A home network is using NAT on the router connecting it to the internet. The PCs on the home network receive private IP addresses through DHCP. When a PC sends a packet to a web server on the internet, what is the source IP address in the packet header when it arrives at the web server?

a registered public IP address assigned to the external router interface
the broadcast IP address of the external network connecting to the ISP
a registered public IP address statically configured on the PC
the private IP address assigned to the PC through DHCP

Explanation: On a home router, NAT converts the source address in the IP packet from the internal private IP address to a registered public IP address assigned to the external interface on the router before sending it out over the internet.

Exam with this question: Checkpoint Exam: Communication Between Networks