Do 2 computers in the same house have the same IP Address?

Question

Other one is connected to the internet w/ wi-fi and other one w/ an ethernet cable. Do they have the same IP Address or different? :)

Answer 1

You need to be clear about what kind of IP address you are talking about. Each computer has one or more Internal IP addresses and in most cases one External IP address. If the WiFi and the Ethernet are connected to the network or router, they will have the same External or Public I.P. address. If your WiFi and Ethernet are connected to different networks or routers, they will have different External or Public I.P. addresses. To find out for sure, just open a web browser on each computer and do a search for 'My IP' on Google.

If you're having an IP address conflict both computers may have the same Internal or Private IP address. This can happen when ICS or Internet Connection Sharing is configured wrong in Windows. To fix this click on the network connection icon for the troubled device and then click on the diagnose button. Chances are DHCP or the Dynamic Host Control Protocol is disabled for one of the devices. Let Windows turn DHCP back on and your problem should be resolved.You can use the Windows Command Prompt and the 'ipconfig /all' command to check your network configuration.

Answer 2

Same Ip Address

Answer 3

They have separate "private" ip addresses. For example, one computer will be something like 128.0.02 and another will be 128.0.03. The .02 on the end would indicate it is the second computer connected to your home network's router. The .03 would indicate its the third. And so forth.



The private ip addresses are assigned by your home network's router using dynamic or static ip addressing. Most routers are set by default to dynamic. Which means the Ip address can change. The 128.0.2 could be two days in the future 128.0.6 or something else. Whatever the router assigns it.



This is all based upon what is called a "lease" which can be set manually in your routers configuration page. It can be set to 1 hour or 1 month or anything in-between. So if the lease is set to 1 hour that means you will get a new "private" ip address every hour. Typically the factory default is sufficient though. It does not need manually changed.





Now, these are private ip addresses for computers on your home network that the internet is shared across. That's all a router does. It divides up traffic across your home network, which is largely internet traffic, sending it to specific Private ip addresses assigned to each computer.



The ip address assigned to your dsl or cable modem is something entirely different and should not be confused with private ip addresses assigned to computers on your home network. I won't go into specifics on that though because you did not ask about that.



edit:



My explanation on private ip addressing on your home network is true for both wifi and ethernet. The only difference is connection method. Wifi is a wireless connection to your home network's router. Whereas ethernet is wired connection to the home network's router.

Answer 4

You didn't provide enough information.



If the computers are connected and setup to use a DHCP server, the server will only assign one IP address per MAC address or network interface.



If the network information is statically assigned on each computer there is a potential for the same network information to be used more than once through user error. This would produce a conflict and the computers simply would not function on the network node.



If the computers are in the same house and are attached to the inside interface on separate routers, then whether they are configured to use DHCP or the network information is statically assigned, the computers would function. This is because both inside interfaces are isolated by NAT (Network Address Translation). Essentially the computers are on different networks, but in the same house.



So the answer is yes and no depending on your network configuration and setup.

Answer 5

They have the same outward facing IP address (what websites see when you visit them), but they will have different IP addresses internally within the network.

I know older routers would sometimes screw up and assign one IP address to two devices on a network which blocked one or the other from actually accessing the internet. I don't know if that's common in newer routers, though.

Answer 6

They have the same outward facing IP address (what websites see when you visit them), but they will have different IP addresses internally within the network.

I know older routers would sometimes screw up and assign one IP address to two devices on a network which blocked one or the other from actually accessing the internet. I don't know if that's common in newer routers, though..

Answer 7

Each computer would have its own private IP address. All the computers in a house using the same router would have one public IP address. This allows authorities to distinguish between individual computers and their owners/users in the event of criminal activity.

Answer 8

Within your home, the two computers have different private IP addresses, managed by your router or wireless access point, which itself has a private IP address. Outside your home, the modem providing your home service has a publicly-visible IP address, managed by the ISP's servers.



Devices outside of your home will only see your modem's public IP address, but there will be extra data that tells the modem which of your three devices (your two computers or your modem itself) will get which data, even if they visit the exact same website.

Answer 9

Yes and no,



Referring to your ISP (Internet Service Provider) IP Address, yes. Two computers connected to the same network will carry the same IP Address.



Referring to your computer itself, no. Every computer has its own internal IP address, which will not change, as it is unique to every computer.

Answer 10

They have the same outward facing IP address (what websites see when you visit them), but they will have different IP addresses internally within the network.

I know older routers would sometimes screw up and assign one IP address to two devices on a network which blocked one or the other from actually accessing the internet. I don't know if that's common in newer routers, though.

Answer 11

Each computer (wired or wireless) has to have its very own unique IP address. However those are LOCAL "private" IP addresses. The router (or modem/router) will have ONE public IP address which is what websites see when you visit them and what your email/messaging etc sends.

So yes, they each have an address and yes they share ONE public IP.

Answer 12

Both computer have their own IP address

Answer 13

for every system its IP address are different. In your case also systems IP is also different but they are using same network so its netip address are same.

Answer 14

Never, but you do have to consider outward facing IP or the IP that is used inside. So whittle down to four words: Outward, yes; inward, no.

Answer 15

the server will only assign one IP address per MAC address or network interface..

Answer 16

No. Think of your house as a neighborhood, and every device connected to the internet as a house: every device ("home") has their own address.

Answer 17

The same except for the last digit which is sequential.

Answer 18

So many valuable answers here

Answer 19

you can do it if you have the different network or two network for two PC.

Answer 20

Dangerously it is right .

Answer 21

no

Answer 22

no

Answer 23

No they dont :)