Join Greg Sowell for an in-depth discussion in this video Routing tables, part of Networking Foundations: Network Media (WANs).
- [Voiceover] A router selects the best path…based on destination prefix…and reliability of how it was learned.…When mentioning prefix, the router will always…choose the most specific route in its table.…If the destination for a packet…is host ten dot zero dot zero dot one,…it will examine the route table to find the best match.…Say, for example, it has three options.…Destination ten dot zero dot zero dot zero…forward-slash eight,…with a gateway of 192 168 zero one,…or destination ten dot zero dot zero dot zero…slash sixteen, with a gateway of 192 168 zero two,…or, finally, destination ten dot zero dot zero dot zero…slash 24, with a gateway…of 192 168 zero three.…
Which will it choose to use?…The destination host technically falls…within the bounds of all three routes,…but which is preferred?…It will always be the more specific route.…The first will match 16 million addresses,…the second matches 64 thousand address,…and the third matches 256.…Since the third is by far the most specific,…it will be used.…Depending on where our route is learned from,…
He discusses different WAN technologies and features such as speeds, spans, and price points—including inexpensive options such as VPN. He then covers switches (the devices that connect computers in your building) and routers (devices that control the transmission of network data). Along the way, Greg shows how to build private connections, implement free networking over the Internet, build switch networks, and overlay-routed networks. He'll also introduce different routing protocols, such as OPSF link-state routing and distance-vector routing with RIPv2, EIGRP, and BGP.
Note that this course maps to domains 1 and 2 of the Microsoft Technology Associate (MTA) Networking Fundamentals certification exam (98-366).
- Understanding the technology: from dial-up to VPNs
- Working with hubs, bridges, and switches
- Ensuring hardware redundancy
- Using switching types and MAC tables
- Preventing bridge loops with STP
- Routing with routing tables
- Using NAT
- Securing your switches and routers
- Setting up firewalls
- Working with different routing protocols: RIPv2, OSPF, EIGRP, and more
Skill Level Beginner
Networking Foundations: Network Media (LANs)with Greg Sowell1h 9m Intermediate
1. WAN Technologies
4. Routing Protocols
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