1. IP Addressing Basics NAD710 Introduction to Networking Using Linux Portions of this presentation are from the online text Linux Network Administrators Guide January 20,2002 Professor Tom Mavroidis
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9. Private IP Addresses Table 2-1. IP Address Ranges Reserved for Private Use Class Networks A 10.0.0.0 through 10.255.255.255 B 172.16.0.0 through 172.31.0.0 C 192.168.0.0 through 192.168.255.0 RFC 1918
14. IPv4 addresses are expressed in dotted decimal notation. For example, a 32-bit address may look like this in binary:
15. We convert each eight-bit block to decimal and separate the decimal values with periods or “dots”. The converted IPv4 address, expressed as a dotted decimal address, is:
16. Class A The largest grouping of addresses is the class A group. Class A network addresses can be identified by a unique bit pattern in the 32bit address.
17. Class B The next grouping of addresses is the class B group. Class B network addresses can be identified by a unique bit pattern in the 32-bit address.
18. Class C The next grouping of addresses is the class C group. Class C network addresses can be identified by a unique bit pattern in the 32bit address.
19. Each of the three IP address classes has these characteristics
20. A device connected to a network may have one or many networking interfaces that require an IP address.
21. Devices with more than one interface are called multihomed , and the process is called multihoming
22. The process of providing more than one IP address on an interface is often called multinetting or secondary addressing . interface ethernet 0 ip address 183.55.2.77 255.255.255.0 ip address 204.238.7.22 255.255.255.0 secondary ip address 88.127.6.209 255.255.255.0 secondary
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