CCNA 3.13: Configure, verify, and troubleshoot RIPv2 for IPv4

Overview: RIPv2 is an enhancement over RIPv1 in that RIPv2 overcomes three main limitations.  RIPv2 accommodates discontiguous network designs, supernetting and VLSM.   Study Notes: RIPv2 is an enhancement over RIPv1 RIPv2 is encapsulated in a UDP segment on port 520 RIPv2 can carry up to 25 ruotes RIPv2 includes a subnet mask field allowing […]

CCNA 3.11: Configure, verify and troubleshoot EIGRP for IPv4

Overview: Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco proprietary advanced distance vector dynamic routing protocol.   Study Notes: EIGRP uses the Diffusing Update Algorithm (DUAL) Fast convergence Easy on processor Incremental updates EIGRP is an Advanced Distance vector protocol Combines the best of Distance Vector with Link State protocols, but is considered a […]

CCNA 3.9: Configure, verify, and troubleshoot single area and multi-area OSPFv2 for IPv4

Overview: Open Shortest Path First version 2 (OSPFv2), is a non-proprietary link-state routing protocol that is typically used within an autonomous system (otherwise known as an interior gateway protocol).  The v2 simply means you are using IPv4 addresses.   Study Notes: OSPF is a Link-state routing protocol Dijkstra’s Shortest Path First algorithm is used to […]

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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