In this blog we explore how a gateway (a router) present in a LAN handles routing to the outside of this network and use redirection to enhance this operation. lab setup Our lab setup is 3 routers: R1...
In this series of posts we’ll explore routing operation. Let’s start from the general idea of how could we manage traffic, a move from one location to another… In the example of the ...
In this blog let’s try to connect to a home network from outside (internet) in a secure manner using SSL. NAT and PAT NAT and PAT is what allowed local IP addresses translation or mapping to som...
In this post, let’s recall what is subnetting (for routing and switching purposes) and how it is done. introduction and motivation Network subnetting is very important subject that maybe referre...
In this post let’s talk about cabling, especially ethernet cabling to meet speeds of 1 gig. 4 elements are discussed : operation as described in the standard, awg metric, pinout and twist. Alter...
HSRP is one of the most know FHRP (First Hop Routing) protocols proposed by Cisco to help secure (in terms of redundancy) the gateway (for hosts or servers) in a LAN. The objective is simple: configur...