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Global Unicast Address Works like Public IPv4 addresses. Should be registered with numbering authority. Assigned as a Global routing prefix by ISP. Can be used to connect to the internet. Globally unique. Unique Local Unicast Address Works like Private IPv4 addresses. No need to register with numbering authority. Unable to connect to the internet directly. Same addresses can be used in multiple organizations. Unique Local Unicast Address Format 8 Bits 40 Bits 16 Bits 64 Bits FD Global ID (Pseudo-random) Subnet Interface ID Global routing prefix: Reserved block of IPv6 addresses, that only one company can use. Address Type First Hex Digits Global Unicast 2 or 3(originally); all not otherwise reserved. Unique Local FD Multicast FF Link-Local FE80 IPv6 subnet ID is also called as Subnet-router anycast address. Host IPv6 addresses can be configured statically ...
Technology simplified. This blog explains Computers and Networking basics in simple words which transfers my knowledge to others and to review myself the explained concepts in future. Our vision is to help our readers to understand the basic concepts of PC and networking. This little effort may help CCENT, CCNA and A+ certifications study group.