Transcription of IP Addressing - UMass Amherst
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IP Addressing - UMass Amherst
IP Addressing Introductory material. A module devoted to IP addresses. Addresses & Names Hardware (Layer 2) Lowest level Ethernet (MAC), Serial point-to-point, .. Network (Layer 3) IP IPX, SNA, others Transport (Layer 4) port numbers in TCP/IP Application (Layer 5) Names (URL), alias, .. Why do we need IP addresses? Q: Why have both an IP and MAC address for each interface? Why not simply make do with MAC addresses? A: Scalable routing. Let s walk through a simple host-to-host packet delivery example and then understand how the structure of IP addresses helps scale routing.
IP Addressing Introductory material. A module devoted to IP addresses. Addresses & Names • Hardware (Layer 2) ... Advantages of Subnetting • With subnetting, IP addresses use a 3-layer hierarchy: » Network » Subnet » Host • Reduces router complexity. Since external routers do not
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IP Addressing & Subnetting Handbook, IP Addressing and Subnetting, Mastering IP Subnetting Forever, IP Subnetting, Subnetting addressing, Chapter Easy Subnetting, SUBNETTING, IP addressing, ADDRESSING, UNDERSTANDING IP ADDRESSING, Subnet-ting, Internet Protocols, N. C. State University, Classless Subnetting, How to Solve Subnetting Problems, Subnet Mask Wildcard