A company is configuring a new internal office network that will not be directly accessible over the internet. What kind of network addressing should be implemented to suit the internal usage requirements?
Dynamic routing with OSPF
Private addressing
Public addressing
Automatic Private Internet Protocol Addressing (APIPA)
Private addressing (RFC 1918 ranges 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) is designed for networks that do not need global reachability, making it the correct choice for an internal LAN. APIPA (169.254.0.0/16) consists of link-local, self-assigned addresses that hosts use only when they cannot obtain an address; it is not part of the RFC 1918 private ranges and should not be selected during planned network design. Using public addresses would consume globally routable space and could expose the network to the internet, while OSPF is a dynamic routing protocol rather than an addressing scheme.
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What are the RFC 1918 private IP address ranges?
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How is APIPA different from private IP addressing?
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Why is it not advisable to use public IP addresses for internal networks?