A Beginners Guide to Subnetting

Introduction Within this tutorial, we will provide a beginner’s guide to subnetting. Before we dive into subnetting we will look into the structure of an IP address, along with some of the key IP schemes that assist in modern day IP subnetting. Note: The scope of this document covers…

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ARP, RARP, Proxy ARP and GARP Explained

Within the ARP family, there are many different types. Within this article, we will look to explain ARP, RARP, Proxy ARP, and Gratuitous ARP. ARP ARP is an L2 protocol, used for discovering the MAC address (i.e physical address) of an IP address. This discovery is performed via an…

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MTU, Jumbo Frames and MSS Explained

MTU The MTU is the maximum payload length for a particular transmission media. For example, the MTU for Ethernet is typically 1500 bytes. (The maximum packet length for Ethernet is typically 1518 bytes, but that includes 14 bytes of Ethernet header and 4 bytes of CRC, leaving 1500 bytes of…

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