title
Building Your Own Network for a Computer Lab

description
NEW CONTENT ON: http://www.FailedNormal.com Info Level: Beginner Presenter: Eli the Computer Guy Date Created: February 15, 2013 Length of Class: 17:05 Tracks Networking Classes that Require a Computer Lab Prerequisites Setting Up Port Forwarding TCP/IP and Subnet Masking Understanding SOHO Routers Understanding Switches Introduction to Networking Physical Network Segmentation Purpose of Class This class teaches students why they should set up a separate Computer Lab network on their home network if they will be creating test servers and networks. It also explains the basic concepts such as; Port Forwarding to Multiple Layers of Routers, the Need for Different IP Subnets on the Same LAN, and that Conflicting Server Services can cause odd problems. Class Notes Reasons for a Separate Computer Lab Network-- DNS and DHCP issues, performance problems Lab Network must be on a different IP Network then other LAN Networks. 192.168.1.x, 192.168.2.x, 192.168.3.x For access to servers form outside world port forwarding on your ISP Router must be pointed at the Router for your Lab Network Any $60 Linksys Router can be used to create a lab network. Lab Network Router External Interface needs to be configured to be on the same network as the ISP Router's Internal Interfaces.

detail
{'title': 'Building Your Own Network for a Computer Lab', 'heatmap': [{'end': 800.753, 'start': 630.456, 'weight': 0.947}], 'summary': 'Learn about the significance of establishing a dedicated computer lab network to prevent disruptions while experimenting with networking services like windows server 2012, creating separate lab and dmz networks with routers, and setting up network services such as port forwarding for server services using windows dns and dhcp.', 'chapters': [{'end': 175.165, 'segs': [{'end': 94.822, 'src': 'embed', 'start': 70.745, 'weight': 0, 'content': [{'end': 80.236, 'text': "Now, the reason you need to create your own computer lab network is because when you start playing with all of these networking services that you're going to start playing with,", 'start': 70.745, 'duration': 9.491}, {'end': 84.998, 'text': 'Those can cause problems for other computers on the network.', 'start': 80.776, 'duration': 4.222}, {'end': 89.66, 'text': "Or other computers on the network can cause problems for the network that you're trying to build.", 'start': 85.018, 'duration': 4.642}, {'end': 94.822, 'text': 'So this becomes very important once you start getting into the Windows Server world.', 'start': 89.98, 'duration': 4.842}], 'summary': 'Creating your own computer lab network is crucial for avoiding problems caused by networking services and other computers, particularly in the windows server world.', 'duration': 24.077, 'max_score': 70.745, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc70745.jpg'}, {'end': 170.903, 'src': 'embed', 'start': 136.322, 'weight': 1, 'content': [{'end': 138.844, 'text': 'It can just cause a complete nightmare.', 'start': 136.322, 'duration': 2.522}, {'end': 149.411, 'text': "So, if you're going to be doing computer labs, if you're going to be doing experiments and all that, you need to separate off your own network, uh,", 'start': 139.284, 'duration': 10.127}, {'end': 150.872, 'text': 'so that you can do all this work.', 'start': 149.411, 'duration': 1.461}, {'end': 154.134, 'text': 'because, again, one of the big problems, especially for you guys,', 'start': 150.872, 'duration': 3.262}, {'end': 162.758, 'text': "is you guys are not skilled enough to know when you are creating a problem or when there is generally a problem with what you're doing.", 'start': 154.134, 'duration': 8.624}, {'end': 170.903, 'text': "like once, once you get skilled, you know whether the issues that you're running into are probably your fault or they're with the software's fault.", 'start': 162.758, 'duration': 8.145}], 'summary': 'Separate your network for computer labs to avoid potential problems and ensure efficient work.', 'duration': 34.581, 'max_score': 136.322, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc136322.jpg'}], 'start': 4.107, 'title': 'Building computer lab network', 'summary': 'Highlights the significance of establishing a dedicated computer lab network to prevent disruptions and misconfigurations while experimenting with networking services like windows server 2012.', 'chapters': [{'end': 175.165, 'start': 4.107, 'title': 'Building computer lab network', 'summary': 'Emphasizes the importance of creating a separate computer lab network to avoid interference with the larger network, especially when experimenting with networking services, such as windows server 2012, to prevent potential misconfigurations and system disruptions.', 'duration': 171.058, 'highlights': ['Creating a separate computer lab network is crucial when experimenting with networking services like Windows Server 2012 to prevent potential misconfigurations and system disruptions. Emphasizes the importance of creating a separate computer lab network to avoid interference with the larger network, especially when experimenting with networking services, such as Windows Server 2012, to prevent potential misconfigurations and system disruptions.', 'Importance of separating the computer lab network from the rest of the local area network to avoid causing problems with the larger network. Stresses the importance of separating the computer lab network from the rest of the local area network to avoid causing problems with the larger network.', 'Explains the need for a separate computer lab network due to potential issues caused by other computers on the network when experimenting with networking services. Explains the need for a separate computer lab network due to potential issues caused by other computers on the network when experimenting with networking services.']}], 'duration': 171.058, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc4107.jpg', 'highlights': ['Creating a separate computer lab network is crucial when experimenting with networking services like Windows Server 2012 to prevent potential misconfigurations and system disruptions.', 'Importance of separating the computer lab network from the rest of the local area network to avoid causing problems with the larger network.', 'Explains the need for a separate computer lab network due to potential issues caused by other computers on the network when experimenting with networking services.']}, {'end': 508.571, 'segs': [{'end': 251.19, 'src': 'embed', 'start': 222.165, 'weight': 2, 'content': [{'end': 226.289, 'text': 'And this has computers, and it has servers, and it has routers, and it has everything.', 'start': 222.165, 'duration': 4.124}, {'end': 232.614, 'text': "Well, what we're going to do is we are going to connect everything up in this lab network to the router.", 'start': 226.649, 'duration': 5.965}, {'end': 234.836, 'text': 'Now, under the router, we may have a switch.', 'start': 232.774, 'duration': 2.062}, {'end': 238.539, 'text': 'So we can have a full, complete network under this router.', 'start': 235.196, 'duration': 3.343}, {'end': 241.461, 'text': 'But basically, the separation point is this router.', 'start': 238.839, 'duration': 2.622}, {'end': 251.19, 'text': "Then what happens is this router will connect to the main router for the ISP, right? So that's the internet service provider.", 'start': 241.902, 'duration': 9.288}], 'summary': 'Lab network setup includes computers, servers, routers, and switches connected to the main isp router.', 'duration': 29.025, 'max_score': 222.165, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc222165.jpg'}, {'end': 343.139, 'src': 'embed', 'start': 292.465, 'weight': 0, 'content': [{'end': 296.727, 'text': "So that's the important reason why we want to be creating this lab network.", 'start': 292.465, 'duration': 4.262}, {'end': 305.273, 'text': 'Because if we start doing experiments and everything is on the same network, you may shut down services that are going to cause problems.', 'start': 297.088, 'duration': 8.185}, {'end': 313.878, 'text': "Now, the important thing to remember when we're doing a lab network like this is remember what routers do right?", 'start': 305.513, 'duration': 8.365}, {'end': 315.479, 'text': 'What do routers do?', 'start': 314.218, 'duration': 1.261}, {'end': 322.544, 'text': 'routers connect separate networks tcp ip networks.', 'start': 316.039, 'duration': 6.505}, {'end': 326.786, 'text': "so it's very important that you remember this when you are setting up the router,", 'start': 322.544, 'duration': 4.242}, {'end': 334.332, 'text': 'because your lab network and the rest of the network cannot have the same subnet.', 'start': 326.786, 'duration': 7.546}, {'end': 337.894, 'text': 'if that, if you have both of these networks have the same subnet,', 'start': 334.332, 'duration': 3.562}, {'end': 343.139, 'text': "the router won't be able to route because it's supposed to route between different subnets.", 'start': 337.894, 'duration': 5.245}], 'summary': 'Creating a separate lab network is crucial to avoid service disruptions, ensuring different subnets for lab and main network.', 'duration': 50.674, 'max_score': 292.465, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc292465.jpg'}, {'end': 401.428, 'src': 'embed', 'start': 372.816, 'weight': 3, 'content': [{'end': 375.397, 'text': 'So the external IP address and the internal IP address.', 'start': 372.816, 'duration': 2.581}, {'end': 385.74, 'text': 'So anything on the 192.168.1.1 network will get routed out to the internet and off into the cloud, as they say.', 'start': 375.757, 'duration': 9.983}, {'end': 390.162, 'text': "Well, what's very important, then, is when you connect this router,", 'start': 386.14, 'duration': 4.022}, {'end': 401.428, 'text': 'The external port for your lab network router has to be on the same network as the internal port for your ISP router.', 'start': 391.522, 'duration': 9.906}], 'summary': 'Routing 192.168.1.1 network traffic to the internet is crucial for connecting routers.', 'duration': 28.612, 'max_score': 372.816, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc372816.jpg'}, {'end': 479.258, 'src': 'embed', 'start': 423.801, 'weight': 4, 'content': [{'end': 432.225, 'text': 'The important part, though, is that the internal side of this lab network has to be a different subnet.', 'start': 423.801, 'duration': 8.424}, {'end': 439.168, 'text': "So you can make it, let's say, 192.168.2.", 'start': 432.785, 'duration': 6.383}, {'end': 444.312, 'text': "dot 1, right? Because now it's on a different subnet.", 'start': 439.168, 'duration': 5.144}, {'end': 446.573, 'text': "So it's very important that you remember this.", 'start': 444.352, 'duration': 2.221}, {'end': 457.221, 'text': "If this is 192.168.1.1 internally and it's on the .1 external subnet 2, no routing will happen.", 'start': 447.154, 'duration': 10.067}, {'end': 460.163, 'text': 'It has to be on a different subnet.', 'start': 457.241, 'duration': 2.922}, {'end': 468.349, 'text': "So that is one of the very important things to remember when you're building these lab networks So everything has to be on different subnets.", 'start': 460.463, 'duration': 7.886}, {'end': 476.495, 'text': "And especially like I'll show you with my little convoluted setup, if you have even deeper routers and networks,", 'start': 468.409, 'duration': 8.086}, {'end': 479.258, 'text': 'everything on your LAN has to be a different subnet.', 'start': 476.495, 'duration': 2.763}], 'summary': 'Internal lab network should be on a different subnet, e.g., 192.168.2.1, to enable routing.', 'duration': 55.457, 'max_score': 423.801, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc423801.jpg'}], 'start': 175.245, 'title': 'Creating lab and dmz networks', 'summary': "Explains creating lab network with router for separate network, highlighting router's role and importance of network separation. it also discusses setting up dmz networks with different subnets for proper routing and communication, emphasizing on network configurations.", 'chapters': [{'end': 343.139, 'start': 175.245, 'title': 'Creating lab network with router', 'summary': 'Explains the process of creating a separate lab network using a router to prevent interference with the main network, emphasizing the importance of network separation and the role of routers in connecting different subnets.', 'duration': 167.894, 'highlights': ['Emphasizes the importance of separating the lab network from the main network to prevent interference, which could lead to service shutdowns and problems. The chapter highlights the critical reason for creating a separate lab network, which is to prevent experiments from affecting the main network and potentially causing service shutdowns or problems.', 'Explains the role of routers in connecting separate networks and the significance of different subnets to enable proper routing. The chapter explains the essential role of routers in connecting different subnets and emphasizes the importance of ensuring that the lab network and the main network have different subnets to enable effective routing.', 'Describes the process of using a router as the demarcation point between the lab network and the rest of the network, ensuring a clear separation. The chapter describes the process of using a router as the demarcation point between the lab network and the rest of the network, ensuring a clear separation to prevent interference and enable independent functioning.']}, {'end': 508.571, 'start': 343.179, 'title': 'Setting up dmz networks', 'summary': 'Discusses the importance of setting up dmz networks with different subnets to ensure proper routing and communication between routers, emphasizing on the significance of having the external and internal ports on the same network and the internal side on a different subnet.', 'duration': 165.392, 'highlights': ['Having the external and internal ports of the router on the same network is crucial for communication between them, exemplified by the requirement for the external port of the lab network router to be on the same network as the internal port of the ISP router.', "Emphasizing the significance of different subnets, it's highlighted that having the internal side of the lab network on a different subnet, such as 192.168.2.1, is essential for proper functioning and routing.", 'The chapter stresses the importance of different subnets within local LANs, warning about the potential issues and complications that could arise if the same subnet is used, urging for adherence to distinct subnets to avoid undesirable outcomes.']}], 'duration': 333.326, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc175245.jpg', 'highlights': ['The chapter highlights the critical reason for creating a separate lab network, which is to prevent experiments from affecting the main network and potentially causing service shutdowns or problems.', 'The chapter explains the essential role of routers in connecting different subnets and emphasizes the importance of ensuring that the lab network and the main network have different subnets to enable effective routing.', 'The chapter describes the process of using a router as the demarcation point between the lab network and the rest of the network, ensuring a clear separation to prevent interference and enable independent functioning.', 'Having the external and internal ports of the router on the same network is crucial for communication between them, exemplified by the requirement for the external port of the lab network router to be on the same network as the internal port of the ISP router.', "Emphasizing the significance of different subnets, it's highlighted that having the internal side of the lab network on a different subnet, such as 192.168.2.1, is essential for proper functioning and routing.", 'The chapter stresses the importance of different subnets within local LANs, warning about the potential issues and complications that could arise if the same subnet is used, urging for adherence to distinct subnets to avoid undesirable outcomes.']}, {'end': 1019.826, 'segs': [{'end': 573.898, 'src': 'embed', 'start': 523.854, 'weight': 0, 'content': [{'end': 529.138, 'text': "Well, if you're going to be doing that, you need to set up port forwarding for the specific ports that are required.", 'start': 523.854, 'duration': 5.284}, {'end': 533.822, 'text': "I have a different class on port forwarding, so if you don't know what port forwarding is, go take that class.", 'start': 529.458, 'duration': 4.364}, {'end': 542.429, 'text': "The important part for this lab environment is, let's say, your server is down here under your lab router and you're thinking well,", 'start': 534.222, 'duration': 8.207}, {'end': 545.492, 'text': 'how am I gonna get my ports to the server down here?', 'start': 542.429, 'duration': 3.063}, {'end': 559.585, 'text': "Well, what happens is on your ISP router you are going to forward the port let's say port 80, to the external ip address of your lab router.", 'start': 545.952, 'duration': 13.633}, {'end': 567.733, 'text': "so you're going to forward the port to the external ip address of the lab router and then, within the lab router,", 'start': 559.585, 'duration': 8.148}, {'end': 572.057, 'text': "you're going to forward the port again to the server.", 'start': 567.733, 'duration': 4.324}, {'end': 573.898, 'text': "so it's just an additional step.", 'start': 572.057, 'duration': 1.841}], 'summary': 'Setting up port forwarding for specific ports is crucial in networking, involving multiple layers of forwarding.', 'duration': 50.044, 'max_score': 523.854, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc523854.jpg'}, {'end': 800.753, 'src': 'heatmap', 'start': 630.456, 'weight': 0.947, 'content': [{'end': 637.199, 'text': 'So I wanna go over to the computer right now, just so I can give you an overview to kind of show you how this looks.', 'start': 630.456, 'duration': 6.743}, {'end': 644.104, 'text': "So right now I'm sitting just at a Windows 7 computer, and this is connected to my lab network.", 'start': 637.779, 'duration': 6.325}, {'end': 649.889, 'text': 'So my lab network is on the 10.1.10 scheme.', 'start': 644.184, 'duration': 5.705}, {'end': 654.733, 'text': "So it's 10.1.10, and for the internal IP address of this router, it's 10.1.10.", 'start': 650.069, 'duration': 4.664}, {'end': 658.575, 'text': "So it's 10.1.10.1.", 'start': 654.733, 'duration': 3.842}, {'end': 661.598, 'text': 'we scroll down, we can look and then we will see.', 'start': 658.576, 'duration': 3.022}, {'end': 670.602, 'text': 'so we see the LAN IP, for this is 10.1.10.1, and then when we see the WAN IP, for this is 10.247.249.122.', 'start': 661.598, 'duration': 9.004}, {'end': 677.647, 'text': 'so this is actually kind of a weird address scheme, but just just follow me here.', 'start': 670.603, 'duration': 7.044}, {'end': 687.312, 'text': 'so basically we can go into that WAN IP and from here We can change that setting, depending on what you want.', 'start': 677.647, 'duration': 9.665}, {'end': 692.994, 'text': "Now, since DHCP is set up on the router, that's one level higher than this particular router.", 'start': 687.352, 'duration': 5.642}, {'end': 702.057, 'text': 'I have this set up simply to obtain an IP address automatically, but I could do a static IP address if I wanted to.', 'start': 693.514, 'duration': 8.543}, {'end': 709.1, 'text': 'So this right here is where you set the external IP address of the router for your lab computer.', 'start': 702.417, 'duration': 6.683}, {'end': 714.124, 'text': 'Then, above this, we then see our LAN settings,', 'start': 709.72, 'duration': 4.404}, {'end': 718.388, 'text': 'and the LAN settings show that I manually configure this to be 10.1.10.1 with subnet mask of 255.255.255.0..', 'start': 714.124, 'duration': 4.264}, {'end': 728.795, 'text': 'You can also go and see and the things like DHCP and DNS.', 'start': 718.388, 'duration': 10.407}, {'end': 737.018, 'text': 'so I have enabled DHCP server on this lab network for the moment and I have given it a scope of 10.1.10.100 to 10.1.10.149.', 'start': 728.795, 'duration': 8.223}, {'end': 740.739, 'text': 'so if I was going to be setting up Windows Server 2012 DHCP servers on this network,', 'start': 737.018, 'duration': 3.721}, {'end': 756.849, 'text': 'I would come in here and uncheck the enable DHCP server so that my Windows servers would handle all that information.', 'start': 748.602, 'duration': 8.247}, {'end': 760.992, 'text': 'so basically, this is the setup for the first router.', 'start': 756.849, 'duration': 4.143}, {'end': 771.28, 'text': "then from there we can go to 10.1.247.249.122, and this is the router that's one level up.", 'start': 760.992, 'duration': 10.288}, {'end': 773.202, 'text': "so I've actually got three routers going on here.", 'start': 771.28, 'duration': 1.922}, {'end': 776.325, 'text': "it's a little bit of a mess, but but hey, You know, that's how it goes.", 'start': 773.202, 'duration': 3.123}, {'end': 783.314, 'text': 'So here we can see that the internal IP address for this particular router is 10.247.249.43.', 'start': 776.825, 'duration': 6.489}, {'end': 784.817, 'text': 'The external the internet connection.', 'start': 783.315, 'duration': 1.502}, {'end': 796.07, 'text': 'for this The IP address is 192.168.1.10.', 'start': 784.817, 'duration': 11.253}, {'end': 800.753, 'text': 'so that is again a different subnet and the default gateway for this is 192.168.1.1..', 'start': 796.07, 'duration': 4.683}], 'summary': 'Overview of network setup with windows 7 computer connected to lab network on 10.1.10 scheme, with details of ip addresses and dhcp server settings.', 'duration': 170.297, 'max_score': 630.456, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc630456.jpg'}, {'end': 718.388, 'src': 'embed', 'start': 693.514, 'weight': 3, 'content': [{'end': 702.057, 'text': 'I have this set up simply to obtain an IP address automatically, but I could do a static IP address if I wanted to.', 'start': 693.514, 'duration': 8.543}, {'end': 709.1, 'text': 'So this right here is where you set the external IP address of the router for your lab computer.', 'start': 702.417, 'duration': 6.683}, {'end': 714.124, 'text': 'Then, above this, we then see our LAN settings,', 'start': 709.72, 'duration': 4.404}, {'end': 718.388, 'text': 'and the LAN settings show that I manually configure this to be 10.1.10.1 with subnet mask of 255.255.255.0..', 'start': 714.124, 'duration': 4.264}], 'summary': 'The lan settings are manually configured to 10.1.10.1 with subnet mask of 255.255.255.0.', 'duration': 24.874, 'max_score': 693.514, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc693514.jpg'}, {'end': 896.645, 'src': 'embed', 'start': 869.85, 'weight': 5, 'content': [{'end': 888.416, 'text': 'so the cable that comes from your ISP router goes into the WAN make sure it goes into the WAN connection of your lab network and then you configure your lab router and then everything in the lab network goes on to the internal side.', 'start': 869.85, 'duration': 18.566}, {'end': 891.799, 'text': "if you do those things, it's it's all pretty simple.", 'start': 888.416, 'duration': 3.383}, {'end': 896.645, 'text': "now. you don't need any expensive routers to create a lab network.", 'start': 891.799, 'duration': 4.846}], 'summary': 'Setting up a lab network is simple, using inexpensive routers and configuring the wan and internal connections.', 'duration': 26.795, 'max_score': 869.85, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc869850.jpg'}, {'end': 994.226, 'src': 'embed', 'start': 945.835, 'weight': 2, 'content': [{'end': 956.321, 'text': 'And the only really complicated part out of all of this is if you want to be hosting services on your lab network that will be accessed from the outside world,', 'start': 945.835, 'duration': 10.486}, {'end': 958.162, 'text': 'you need to do port forwarding.', 'start': 956.641, 'duration': 1.521}, {'end': 964.766, 'text': "You forward the ports from the ISP's router to the external address of your lab router.", 'start': 958.502, 'duration': 6.264}, {'end': 971.89, 'text': 'And then within your lab router, you forward the ports to whatever the server is on your internal network.', 'start': 965.086, 'duration': 6.804}, {'end': 974.152, 'text': "And that's about all there is to it.", 'start': 972.271, 'duration': 1.881}, {'end': 975.913, 'text': 'This is really a serious thing.', 'start': 974.192, 'duration': 1.721}, {'end': 979.796, 'text': "Again, if you're going to be playing around especially with the Windows servers.", 'start': 975.993, 'duration': 3.803}, {'end': 989.863, 'text': "Windows servers really like you to use Windows DNS and Windows DHCP, and if you don't do that, it can cause all kinds of problems.", 'start': 980.236, 'duration': 9.627}, {'end': 994.226, 'text': 'and Windows DNS and Windows DHCP can be really really finicky.', 'start': 989.863, 'duration': 4.363}], 'summary': 'Setting up hosting services requires port forwarding and windows servers prefer windows dns and dhcp.', 'duration': 48.391, 'max_score': 945.835, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc945835.jpg'}], 'start': 508.591, 'title': 'Setting up network services', 'summary': 'Discusses setting up port forwarding for server services, explaining the process and emphasizing the use of windows dns and windows dhcp for windows servers.', 'chapters': [{'end': 597.227, 'start': 508.591, 'title': 'Setting up port forwarding for server services', 'summary': 'Discusses the process of setting up port forwarding for server services, explaining the need for specific ports and the two-step forwarding process from the isp router to the lab router.', 'duration': 88.636, 'highlights': ['The process involves setting up port forwarding for specific ports required for server services, such as web servers and Windows server VPN.', 'The two-step forwarding process includes forwarding the port from the ISP router to the external IP address of the lab router, and then from the lab router to the server.', 'The chapter emphasizes the additional step involved in port forwarding for a lab environment, compared to the standard port forwarding process.']}, {'end': 1019.826, 'start': 597.467, 'title': 'Setting up lab network', 'summary': 'Explains the process of setting up a lab network with multiple routers on different subnets, and emphasizes the importance of using windows dns and windows dhcp for windows servers.', 'duration': 422.359, 'highlights': ['The importance of setting up a lab network with multiple routers on different subnets to prevent communication issues is emphasized, with specific IP address and subnet mask details provided.', 'The significance of using Windows DNS and Windows DHCP for Windows servers is stressed, warning about potential problems and the finicky nature of these services.', 'Instructions for setting up a lab network with basic routers, avoiding the need for expensive equipment, are provided, highlighting the simplicity of the process.']}], 'duration': 511.235, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/dIFKmJ4wufc/pics/dIFKmJ4wufc508591.jpg', 'highlights': ['The process involves setting up port forwarding for specific ports required for server services, such as web servers and Windows server VPN.', 'The two-step forwarding process includes forwarding the port from the ISP router to the external IP address of the lab router, and then from the lab router to the server.', 'The chapter emphasizes the additional step involved in port forwarding for a lab environment, compared to the standard port forwarding process.', 'The importance of setting up a lab network with multiple routers on different subnets to prevent communication issues is emphasized, with specific IP address and subnet mask details provided.', 'The significance of using Windows DNS and Windows DHCP for Windows servers is stressed, warning about potential problems and the finicky nature of these services.', 'Instructions for setting up a lab network with basic routers, avoiding the need for expensive equipment, are provided, highlighting the simplicity of the process.']}], 'highlights': ['Creating a separate computer lab network is crucial when experimenting with networking services like Windows Server 2012 to prevent potential misconfigurations and system disruptions.', 'Importance of separating the computer lab network from the rest of the local area network to avoid causing problems with the larger network.', 'Explains the need for a separate computer lab network due to potential issues caused by other computers on the network when experimenting with networking services.', 'The chapter highlights the critical reason for creating a separate lab network, which is to prevent experiments from affecting the main network and potentially causing service shutdowns or problems.', 'The chapter explains the essential role of routers in connecting different subnets and emphasizes the importance of ensuring that the lab network and the main network have different subnets to enable effective routing.', 'The chapter describes the process of using a router as the demarcation point between the lab network and the rest of the network, ensuring a clear separation to prevent interference and enable independent functioning.', 'Having the external and internal ports of the router on the same network is crucial for communication between them, exemplified by the requirement for the external port of the lab network router to be on the same network as the internal port of the ISP router.', "Emphasizing the significance of different subnets, it's highlighted that having the internal side of the lab network on a different subnet, such as 192.168.2.1, is essential for proper functioning and routing.", 'The chapter stresses the importance of different subnets within local LANs, warning about the potential issues and complications that could arise if the same subnet is used, urging for adherence to distinct subnets to avoid undesirable outcomes.', 'The process involves setting up port forwarding for specific ports required for server services, such as web servers and Windows server VPN.', 'The two-step forwarding process includes forwarding the port from the ISP router to the external IP address of the lab router, and then from the lab router to the server.', 'The chapter emphasizes the additional step involved in port forwarding for a lab environment, compared to the standard port forwarding process.', 'The importance of setting up a lab network with multiple routers on different subnets to prevent communication issues is emphasized, with specific IP address and subnet mask details provided.', 'The significance of using Windows DNS and Windows DHCP for Windows servers is stressed, warning about potential problems and the finicky nature of these services.', 'Instructions for setting up a lab network with basic routers, avoiding the need for expensive equipment, are provided, highlighting the simplicity of the process.']}