CCNA 1.15: Compare and contrast IPv6 address types (Global unicast, Unique local, Link local, Multicast, Modified EUI 64, Autoconfiguration, Anycast)

Overview: IPv6 address types consist of unicast and multicast addresses along with anycast addresses. With IPv6, an interface is expected to have multiple addresses. It also listens to various multicast addresses. IPv4 addresses are either unicast, multicast or broadcast.  In IPv6, broadcast addresses no longer exist.   Study notes: Unicast – uniquely identifies an interface. […]

CCNA-1.12: Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements in a LAN/WAN environment

Overview: IPv6 addressing is designed differently than IPv4.  Subnetting is used in IPv4 to more efficiently use the small number of available addresses. IPv6 has a large enough address space without subnetting to accommodate devices for the foreseeable future.  The local area subnet always uses 64 bits for the routing prefix and 64 bits for […]

CCNA-1.11: Describe the need for private IPv4 addressing

Overview: Private IPs were originally meant as a more secure means of providing IPv4 addresses to devices because private IPs are not routable over the internet. It turns out that private IPs also came in handy as a means to save valuable public IPv4 address space.  Without private IPv4 addressing, we would not have anymore […]

CCNA 1.10: Compare and contrast IPv4 address types (Unicast, Broadcast, Multicast)

Overview: Understand the differences between IPv4 address types including unicast, broadcast and multicast IPv4 addresses Study Notes: Understand the different IPv4 address types. Loopback – this IP points back to the device’s TCP/IP stack.  Pinging it tells you whether TCP/IP has been installed and is running. Layer 2 broadcasts – Layer 2 broadcast traffic stays […]

CCNA 1.9: Configure, verify and troubleshoot IPv4 addressing and subnetting

Overview: Subnetting can be a challenge to learn initially.  Instead of trying to write yet another lesson on subnetting I thought I would just include a few good references and create a lab where you can test your skills. I will urge you to watch different YouTube videos on subnetting and read different materials on […]

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