One block of private IP space (172.31.128.0/17) is routable between the ITS core network and Flint.One block of private IP space (172.31.0.0/17) is routable between the ITS core network and Dearborn.Ranges designated as “local” will not be routed between core networks.A range of IP space designated as “shared” may be routed between core networks.Each group is responsible for the administration of prefixes within its assigned ranges.Historically, the University has scoped the organization for private IP address on the Ann Arbor campus, and this is divided between the two core network providers, ITS and HITS. ![]() University of Michigan Private IP Assignments This is consistent with the Address Allocation for Private Internets (RFC1918). Get hidden now.Private IP networks are "organizationally scoped" IP nets which the University of Michigan uses internally but are not routed outside the institution. Next time you’re using your laptop at a library, work or the corner store, just click on and check out the IP address you’re using.Īnd to learn a little more about IP addresses, read the other articles right here on this website. “One latte and an IP address to go, please.” It all happens thanks to the intelligent design behind the Internet, wireless networks and all those Internet Protocols your computer uses. As you move from the airport to your hotel to the local coffee house, your IP address will change each and every time.īut you don’t have to think about it at all, or open the hood of your computer and flip switches. So, when you’re at a coffee shop in another city or state (or just down the road) and you’re using their WiFi to get your email, you’re using a different (and temporary) IP address, one assigned to your laptop on the fly by the ISP for that coffee shop’s Internet provider. It can’t, because on vacation you’ll be using another network to connect to the Internet. Plus, if you go on vacation and take along your laptop, your home IP address doesn’t go with you. Or you can contact your Internet service provider and they can change it for you. Even at home it can change if you do something as simple as turn your modem or router on and off. Don’t tattoo your IP address to your arm, because it’s not really yours. Your Internet activity goes through them, and they route it back to you, using your IP address.īut don’t get attached to it. ![]() Since they are the ones giving you access to the Internet, it’s their role to assign an IP address to your computer. When you’re at home, an IP address is assigned to your computer by your Internet service provider (think Time Warner Cable, Cox Communications, or AT&T). The address it uses is the IP address for your connection. It attaches an “electronic return address” to all your online requests and activity for you. ![]() One of those networking protocols on your computer, the Internet Protocol, is responsible for addressing, delivering and routing your online requests precisely. To make sure you can do your thing on the Internet, your computer’s networking software is hardwired to follow a list of built-in networking standards and rules (yes, protocols) to connect to Internet, and to swap information and data back and forth. But with millions of computers on the Internet, how can your single computer jump right in and get you your work or personal emails and more without any problems? Protocols are Protocols That network might be your Internet service provider (ISP) at home, or a company network at work, or a wireless network at a hotel or coffee shop when you’re on the road. You and your computer actually connect to the Internet indirectly: You first connect to a network that is 1) connected to the Internet itself and 2) grants or gives you access to the Internet. When you go online for email, to shop or chat, your request has to be sent out to the right destination, and the responses and information you want need to come back directly to you.Īn IP address plays a significant role in that. Your computer is hooked up to the Internet, one way or the other. And every time you go on the Internet, an IP address is right there, working for you.Īnd with so much obscure information (and misinformation) out there about the IP address, it’s helpful to know the basics. Still, we’re all on the Internet these days, and it seems we’re always connected through our personal computers, laptops or mobile devices. Information technology (IT) is crazy stuff and it’s best left to those who have to deal with computers and networks. At least it should be.īecause from this point on, it gets complicated fast.
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