ccna 200 301 bookshelves ikea wire

ccna 200 301 bookshelves ikea wire.1.5 Summary 125One of the benefits of using proxy ARP is that you can set up proxy ARP on one router in your network, which does not affect the routing tables of the other routers running in your network. However, there are serious concerns about using proxy ARP: Using proxy ARP increases the total amount of traffic in the segment, and the host needs to maintain a much larger ARP table than it used to in order to handle all the IP-to-MAC address mappings. The proxy ARP feature is configured by default on all Cisco routers-you should disable it if you don't want to use it.One last thing about Proxy ARP: Proxy ARP is not a separate protocol. It is a service provided by the router that enables the router to act as a proxy for devices (usually PCs) that are separated by the router into different network segments when the host requests the MAC address of those devices, thinking that it is on the same subnet as the remote device (PC). The router will use its own MAC address as the response message for the ARP request, that is, it will resolve its own MAC address to the functional MAC address of the IP address of the remote device.If the budget is right, you can use Cisco's HSRP (Hot Standby Router Protocol) o Although this means you need to buy at least two Cisco devices, it is cost effective. More information about HSRP can be found in the Cisco website.4.3 SummaryIf you have read this far and fully understood everything presented in this book in your first study session, you should feel great about yourself. This chapter contains a lot of basics, and understanding them is important for learning the rest of the book.But if you don't fully understand them in this first study, don't put too much pressure on yourself to read them twice. There will be more basics covered in this book next, so you'll want to understand the current content well before moving on to the new knowledge. We do this to lay a foundation, and you want to have a solid foundation too, right?After learning about the DoD model, layering and its associated protocols, it's time to move on to the important study of IP addressing, where I will detail the differences between each type of address, how to find network addresses, broadcast addresses, and valid host address ranges, which are introduced in this chapter as the foundation for learning Chapter 5.Now that you've gotten this far in your study, there's no reason to stop there and not waste those dead brain cells. So, go ahead - complete the written labs and review thought questions at the end of the chapter, making sure you understand the explanatory notes for the correct answer to each question. The best is coming up!4.4 Exam Essentials.