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Learn pfSense 2.4
book

Learn pfSense 2.4

by David Zientara
July 2018
Beginner content levelBeginner
346 pages
10h 47m
English
Packt Publishing
Content preview from Learn pfSense 2.4

Routing fundamentals

Routing takes place on the Network layer (Layer 3) of the OSI model, and on the Network layer of the Network model. While switches are store-and-forward devices that use MAC addresses to identify nodes, routers are also store-and-forward devices, but they use IP addresses to identify nodes. Routers (and Layer 3 switches, for that matter) allow us to move data between networks. A router is also responsible for maintaining information about other routers on the network, which it stores in tables. There are also several different protocols that enable a router to learn the topology of a network.

A router can do everything a switch or hub can, and has more functionality. The obvious difference is that it is capable of handling ...

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Publisher Resources

ISBN: 9781789343113Other