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Basic Networking Guide: I have seen several posts on here from people who avoid FTP because they can't understand networking. I've seen advice from people who don't understand networking. I've seen people try to connect to their xbox but have no clue how. Let me explain this to you. If you don't understand, keep reading it over and over. Nobody can help you any more than this. 1. IP addressing - Your IP address is a series of numbers that gives your devices their identity on your local network. Think of it as a street address that will only mean anything to other people who live in your neighborhood. Anyone who doesn't live in your neighborhood would have absolutely no idea what it means or how to find that address. For example, here is a the most common IP scheme (subnet) in the world: 192.168.1.*. for our purposes, we're going to throw away the high level stuff about subnetting here. You'll only ever be dealing with a consumer grade network... or you'd already know this by now. For any 2 devices to communicate on your local network, they need to belong to the same subnet. This means they both need a 192.168.1.* address. (Please remember that I am trying to simplify this for the lay person.) So your pc should be for example: 192.168.1.15. Your xbox could be: 192.168.1.37. As long as they don't have the same number in the fourth slot(octet) as any other device, as long as it is >=1 and <= 254, it will be able to communicate with any other device on that same subnet. By now, you're confused.... "but he's calling the ip address range the subnet but I have another slot named subnet mask"..... 2. Subnet mask - This is a way to chop up a network(subnet) and keep certain computers from talking to other ones on a network. It was created in the early days of networking as a form of security. It's necessary to configure it for communications, but not necessary to understand it. What you need to understand is that a subnet: (for example) 192.168.1.1 Through 192.168.1.254 is a range of ip addresses. A subnet mask is what determines which IP addresses on the subnet, certain devices can communicate with. For our purposes, we're going to always set our subnet masks on all devices identically. 255.255.255.0. This allows each device to talk to each other device. Think of this as a fence... so only certain members of the neighborhood can interact with each other. 255.255.255.0 takes that fence down. (Again, I'm trying to simplify this for the lay person. If you get really into networking and realize there are subnets MUCH larger than what we're dealing with and therefore the subnet mask allows this, you may want to argue. I do this for a living and know that the description isn't dead on technically... I'm just trying to make it easy to understand.) All of our neighbors can communicate with each other. 3. Default Gateway - This is only necessary when you need communication OUTSIDE of your subnet. This is always going to be the ip address of your router. It must exist on the same subnet as the device we're trying to give access to. So for instance, your computer is 192.168.1.15 and you want to give it internet access. Your router's ip has to be 192.168.1.something.... If it's anything else your pc can't talk to it. Routers are usually the first available ip address in a subnet. It doesn't have to be this way, but that's usually the way it's set up. So, your pc so far is: IP: 192.168.1.15 Mask: 255.255.255.0 Gateway: 192.168.1.1 Think of the default gateway as the ONLY entrance and exit to the neighborhood. You can't enter or escape this neighborhood without knowing where that gateway is. 4. DNS - Dns is what translates www.whatever.com into an ip address. Your pc uses ip addresses to browse the internet. You just don't know that because we know humans don't remember numbers as well as names. The names mean something to us, so we know them and can use those. So DNS is there to make the conversion for us. This setting for primary and secondary DNS is necessary for internet access. (You need at least one to work. It's not necessary to have both as long as one works.) Google provides free public DNS you can point to, and it will work just fine. 188.8.131.52 184.108.40.206 DNS is like a phone book. You know the name of the person you're wanting to talk to, but can't remember the number. 5. Physical Connectivity - If you're relying on DHCP, both devices will have to be connected to your device that is handing out the addresses via DHCP. This can be directly or via a switch. (think of a switch as being a splitter for ethernet. It's MUCH more sophisticated than that, but for your purposes you can think of it this way.) This will handle the addressing portion as well as make the physical connection properly. You'd only have to configure your devices to use DHCP, and they will get addresses from the DHCP server and you'll be set. If you don't have a router or switch, you'll have to plug a cable directly between your two devices. Since this is an xbox group, we'll focus on cat5 cables and above. (You should be using at least cat5e in this day and age.) Network cables by default are called "straight through". What you need to know is they have 4 pairs of wires inside of them. Some are designated as send. Others receive. For the devices to communicate, one device has to have it's send connected to the other's receive... or else they won't be able to hear each other talk. Switches do this automatically. Some devices will sense this automatically and make the change on their own. This feature is called MDI/MDIX. The xbox doesn't have this feature. If your pc doesn't, you'll have to have what is called a "crossover cable". This cable simply connects send to receive so your two devices can communicate without a switch. 6. Usage - You may ask for clarification on this article, but don't ask for any more networking advice outside of this article. Everything you need is right here. If you're wanting someone to just tell you what to put into each box, ask obama. If you're not willing to do the work yourself and try to understand what you're doing... you don't belong here. If you see someone asking for networking advice in our group, send them the link to this write-up.
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