IP Addresses

IPv4 / IPv6 are Layer 3 protocols (Routing)

Private Network Addresses

Network Class	Network Numbers	Network Mask	# of Networks	# of Hosts Per Network
Class A	10.0.0.0	255.0.0.0	126	16,646,144
Class B	172.16.0.0 to 172.31.0.0	255.255.0.0	16,383	65,024
Class C	192.168.0.0 to 192.168.255.255	255.255.255.0	2,097,151	254
Loopback	127.0.0.0 to 127.0.0.7	255.255.255.0	-	-

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Definitions

• NAT: Network Address Translation