1. Lesson 2 – IP Addressing IP Address (IPv4 – Version 4) Private and Public Address Brief Introduction to IPv6 – Version 6

2. IP Address (IPv4 - version) IP addresses allow hosts to indentify it and participate on IP based network. Is a 32-bit binary number represented as four octets (four 8-bit values). Is represented by one of two ways: Binary: 11000000. 10101000. 00000001. 00000001 Decimal: 192. 168. 1. 1 The IP address includes both the network and the host address.

3. IP Address (IPv4 - version) contd The Subnet Mask is a 32-bit number that is associated with each IP address to identify the network and host portion. Range of 8-bit values Min : 0 0 0 0 0 0 0 0 = 0 Max : 1 1 1 1 1 1 1 1 = 255 Example: 255.255.255.0 or 11111111. 11111111. 11111111. 00000000 Task 11000000 = 11001100 = 11100011 = 11001010 = 11001101 = 11101011 = Bit Place87654321 Decimal Value 1286432168421 192 204 227 202 205 235

4. IP Address (IPv4 - version) Classes of IP Address Network Portion and Host Portion

5. IP Address (IPv4 - version) How to remember Range of IP Classes? Just remember Highest Significant bits of first octets of an IP address.

6. IP Address (IPv4 - version) Private and Public Addresses Private IP addresses are specifically reserved to be used in private network by companies. Public IP addresses are specifically used when moving on (connecting) to Internet.

7. IPv6 Address (version - 6) IPv6 is the next-generation Internet protocol. It was originally created as the answer to IPv4’s inevitable, looming address-exhaustion crisis. It is 128 bit in length. Benefits of IPv6 More Efficient Routing More Efficient Packet Processing Directed Data Flows Simplified Network Configuration Support For New Services Security