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Welcome to Jeremy’s IT Lab. This is\xa0\n
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If you like these videos, please\xa0\n
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Also, please like and leave a comment, and share\xa0\n
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videos. Thanks for your help. Also, remember\xa0\n
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to get all of the lab files for this course, so\xa0\n
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If you want more labs like these, I highly\xa0\n
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It’s a network simulator with tons of guided\xa0\n
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know for the CCNA. Click the link in\xa0\n
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In this lab we’ll practice configuring static NAT\xa0\n
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so they are unable to access the Internet.\xa0\n
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to use the Internet, for example to access\xa0\n
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which is to ping from PC1 to 8.8.8.8. So, from\xa0\n
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It will take a bit of time for each ping\xa0\n
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R1 will try to send the pings\xa0\n
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ISP will simply drop the traffic,\xa0\n
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So let’s get right into static NAT\xa0\n
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let’s configure the inside and outside\xa0\n
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Is this the inside or outside interface? Well,\xa0\n
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to the external network, so it’s the\xa0\n
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INTERFACE G0/1. This interface is connected\xa0\n
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Okay, next let’s configure those static NAT\xa0\n
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to a public IP in the 100.0.0.0/24 subnet. I’ll do\xa0\n
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and then I’ll map it to 100.0.0.1, keeping the\xa0\n
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I’ll hit the up arrow, and change these addresses\xa0\n
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that again, 100.0.0.3 and 172.16.0.3 for PC3. And\xa0\n
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EXIT. Now, before trying that ping again from PC1\xa0\n
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SHOW IP NAT TRANSLATIONS. Here you can see\xa0\n
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mapping these inside local addresses to\xa0\n
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statistics. SHOW IP NAT STATISTICS. Okay, 3 total\xa0\n
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interfaces we configured. Now let’s try some pings\xa0\n
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First I’ll ping from PC1 to 8.8.8.8. PING\xa0\n
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step 4 says to ping google.com from each PC. I’ve\xa0\n
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so they should contact 8.8.8.8 to learn the IP\xa0\n
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ping google.com. So, PING google.com. Okay, it\xa0\n
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PING google.com. Okay, it works here too. And\xa0\n
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Okay, the ping works, so let’s\xa0\ncheck the translations on R1.
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SHOW IP NAT TRANSLATIONS. Okay, there\xa0\n
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Here you can see the static translations, still in\xa0\n
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all for destination 8.8.8.8 port 53.\xa0\n
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and 3 used DNS to learn the IP of google.com. And\xa0\n
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Notice, as I pointed out in the lecture, that\xa0\n
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inside global address, but the outside local\xa0\n
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That’s because we’re only doing\xa0\n
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Okay, finally step 5 is to\xa0\n
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So, the command is CLEAR IP NAT TRANSLATION, and\xa0\n
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remain. SHOW IP NAT TRANSLATIONS. All of the\xa0\n
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entries remain. As I mentioned in the lecture,\xa0\n
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period of time and be cleared from the table, but\xa0\n
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so in this lab we practiced configuring static\xa0\n
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let’s take a look at a bonus practice lab\xa0\n
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Okay here's today's Boson NetSim practice lab.\xa0\n
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in Boson NetSim for CCNA there are five different\xa0\n
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So here is the lab topology, and it looks like\xa0\n
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because it's connected to what seems like\xa0\n
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network with switch1, switch2, and\xa0\n
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the commands you need to know. All commands\xa0\n
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The IP addresses of each device and here are the\xa0\n
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one single lab task, so let's go through all of\xa0\n
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Was the ping successful? Why or why\xa0\n
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And attempt to ping Router3. Let's\xa0\n
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Okay it seems the ping is not working. Okay,\xa0\n
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so it is not accepting these pings that have a\xa0\n
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Okay, on Router4 configure NAT to statically\xa0\n
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Okay, so let's do that. So I'll open the\xa0\n
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So let's configure that mapping. IP\xa0\n
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PC1's IP address is, here it is. 192.168.1.2.\xa0\n
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configured the mapping, but that's not all you\xa0\n
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Okay, which interface should be configured\xa0\n
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it should be fastethernet0/1, that is the inside\xa0\n
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Okay, so let's configure those interfaces.\xa0\n
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inside, so IP NAT INSIDE. And\xa0\n
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OUTSIDE. Okay and let's try that ping again\xa0\n
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Okay let's check that NAT translation table\xa0\n
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Okay so we have the static mapping here. Looks\xa0\n
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sure about why that is. And then the entry for the\xa0\n
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is translated to what inside global address? Well\xa0\n
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the inside global IP address normally represent a\xa0\n
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represents a public IP address because it is\xa0\n
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for example the internet, knows. And you can't\xa0\n
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step 8. On Router4 configure NAT to statically\xa0\n
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Okay so let's do that. IP NAT INSIDE SOURCE STATIC\xa0\n
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Okay, so display the NAT translation\xa0\n
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Okay, I can see mapping for both of\xa0\n
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Okay let's try that ping, from,\xa0\n
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Interesting, okay. So I will open up Router3.\xa0\n
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So, I think this will not work because it's\xa0\n
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a public, oh sorry not a public, a private IP\xa0\n
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PING 192.168.1.2. Yes, and\xa0\nthat U means unreachable,\xa0\xa0
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okay. Attempt to ping from Switch2 to Router3.\xa0\n
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Let's check. SHOW IP INTERFACE BRIEF.\xa0\n
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But NAT is not configured on Router4\xa0\n
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so this should not work. But\xa0\n
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Okay, and just like in the beginning with PC1,\xa0\n
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so Switch2 is not able to ping Router3. Okay so\xa0\n
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grade lab function here, and let's see if I did\xa0\n
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Great, and by the way if you ever have\xa0\n
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Boson provides solutions down at the\xa0\n
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actually if you want to read these you can\xa0\n
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Okay, so that was a quick look at a lab\xa0\n
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NetSim has over 100 guided labs like these. Some\xa0\n
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but then some of them are actually\xa0\n
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So I think it's a great study resource,\xa0\n
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If you want to get NetSim, please follow\xa0\n
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Before finishing today’s video I want\xa0\n
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To join, please click the ‘Join’ button under\xa0\n
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Serge, Njoku, Viktor, Roger, Raj, Kenneth, Seamus,\xa0\n
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Gustavo, Anthony, Benjamin, Tshepiso, Justin,\xa0\n
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Value, John, Funnydart, Velvijaykum, Mark, Yousif,\xa0\n
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Sorry if I pronounced your name incorrectly,\xa0\n
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This is the list of JCNP-level members at the\xa0\n
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If you signed up recently and your name isn’t\xa0\n
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Thank you for watching. Please\xa0\n
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like the video, leave a comment, and share the\xa0\n
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and accept BAT, or Basic Attention Token, tips\xa0\n
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