Question about IP address
Or does each computer have it's own IP address? Does a shared modem affect the IP address? What exactly is an IP address? And can it be traced? |
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| just a little info and hope this helps Two computers wont have the same IP address because they will have different NICs. If your using one router then you would have to buy a hub and manually set IPs for each pc or get your ISP to allocate you two IP addresses. A firewall does this job for you so say for example your IP is 192.168.1.1 then when your on a website or logged in somewhere your IP will look like 68.182.1.0 (these are just made up). If your firewall is good enough or you have it set right nothing should be able to penetrate your system hwoever in case of dialling into a company then they must know what your IP is. |
Parwaz wrote: just a little info and hope this helps Two computers wont have the same IP address because they will have different NICs. If your using one router then you would have to buy a hub and manually set IPs for each pc or get your ISP to allocate you two IP addresses. A firewall does this job for you so say for example your IP is 192.168.1.1 then when your on a website or logged in somewhere your IP will look like 68.182.1.0 (these are just made up). If your firewall is good enough or you have it set right nothing should be able to penetrate your system hwoever in case of dialling into a company then they must know what your IP is. Thanks for the info.  If you have one router (are the router and modem the same thing?) and several computers and you have not bought a hub and manually set IP addresses. If you visit the same site with each different computer. Would the site read all of those visits as the same IP address or as several different IP's? What is a hub? Is it hard to manually set the IP addresses? And what is an ISP? Would ISP be the internet provider? Sorry, this is why I don't enjoy technology because one question brings up several more to really get to the bottom of what you need to figure out. |
| A router and a modem are different things. The modem is the box that brings the internet inside, and the router is what gets the internet from the modem to your computers. ISP stands for internet service provider. |
| With a router, you have an internal IP address system that identifies the specific computers on your home network. These typically are in the format 192.168.1.### But your internet provider assigns you a single and different external IP address that is the one that is recorded by websites you visit. In my case, for example, it is 28.8.###.###. My understanding is that websites track the external IP address assigned by your ISP and that number would be the same for whatever site you are visiting regardless of which specific computer in your internal network was being used. But your ISP may actually rotate IP addresses over some period of time so your IP-given address is not fixed. Hope that helps. |
| So at the risk of confusing you more, I’ll explain most of this the way I do where I work. Most of these people know little to nothing about this stuff but claim they know something… Think of the IP address as a street address. The server or router you work off of uses that IP address to identify your computer to send and receive info to and from. Now, if you work from behind a home style router, think of the router as an apartment building. It has its own street address and all the apartments inside have individual numbers. The router will have an IP address that everyone on the internet can see, just like if you were standing in the street, looking at the apartment building’s address. From the street, you can’t see my apartment’s number. But, once you come inside, you can. From the internet, others can see your router, but not you individual computer. But, keep in mind there are ways for you to gain access to your computer from outside, but that’s a lot more complex than what we’re going over here. With regards to hubs, switches and routers... Over the years, the names of hubs and switches have become fairly interchangeable. I’m not saying that the hardware is, but people seem to think they are. Both are boxes that are designed to take a signal and split it so others can access the network it’s on. Think of the hub or switch as the hallway in your apartment building. The router would be the main entrance. It’s usually open for anyone to enter, but to get into any of the apartments, you need that one door’s key. Digitally speaking, that ‘key’ is stored in the router and only the person who set it up should know. Most routers also have the ability to split the signal too. Bot wired and wireless routers can do this nowadays. With regards to the ISP handling our IP addresses… In my case, AT&T assigns me an IP and randomly they change it. This is called a ‘dynamic IP’. So from time to time, anytime really, it will change. I’ve seen it change three times in one day and not change again for several weeks. It’s VERY random. I’ve not figured out what is the reason for it changing, but they do it. For a fee, usually more than you’d want to pay as a home user; you can pay the ISP to give you an IP that doesn’t change, this is called a ‘fixed IP’. This is what business owners prefer so they can use a website or email server that may be based on their own server. While I do have my own serve in my house, I can’t afford the fees they want for a fixed IP address. I have to work around that, with some very cool free software that monitors it for me. So hopefully, this helps. If not and you really want more, you can PM me of take a couple community college classes  Vance |
| Well most IP address are are static over here as its easy for a trace. Press the start button and in the bottom left under programs in the search area type in cmd & the press enter. You will get a box & then type ipconfig and this will show you IP address In the old days they had diff names so it was simple to understand Bus system or a token ring. The bus goes on its route and stops of at the bus stop and drops you off. The route is the system bus stop is your computer the data is you & the bus is the speed of your internet. The more buses on the system the slower it goes. Hope this helps. Is this OK Vance  |
| Thanks so much everyone for taking the time to explain and to help me! All of your answers have helped me immensely. An example that's pertinent to this site: Frequently we have votes to support various members causes for charitable situations. Most recently Judi and Heather. If you have several computers in your household and more than one email address and you want to vote as many as your amount of household computers would allow BUT all of the computers use the same network. And if I'm to understand correctly that would make them show externally as all having the same IP addresses. If one of the requirements is each vote needs to come from a different IP address. So technically you could only vote from one computer because all others would be kicked out? If each device has it's own IP address if not sharing the same home network can I take my laptop to a place where you can hook into someone else's Wi-Fi and what would the IP address identify with in that case? Would it then be the IP address of the public Wi-Fi or a friends home network IP address or the IP address of my individual computer? |
Parwaz wrote: Well most IP address are are static over here as its easy for a trace. Press the start button and in the bottom left under programs in the search area type in cmd & the press enter. You will get a box & then type ipconfig and this will show you IP address In the old days they had diff names so it was simple to understand Bus system or a token ring. The bus goes on its route and stops of at the bus stop and drops you off. The route is the system bus stop is your computer the data is you & the bus is the speed of your internet. The more buses on the system the slower it goes. Hope this helps. Is this OK Vance Thanks for this info! I tried it, but when I click on all programs it's just all of the folders and no blank box to type anything in. If I click Run there's a blank box. So I did the CMD but that produced a black box with a command prompt. Since I wasn't sure that's the correct place to be and I know not to type in misc stuff when I'm unsure of what it does I'm at a standstill. |
| Thats right you have a black box & in that black box you type ipconfig |
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