Different ip address on different devices?
When using google and various other websites like https://www.whatismyip.com/ I've noticed that my ipv6 is different for my phone, on my laptop, and on my desktop but my ipv4 address stays the same.
Why isn't my ipv6 the same across all devices but my ipv4 is?
I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet and then each device gets assigned a local ip address?
Side note: Most of the time websites show me my ipv6 address when asking what my ip address is (which is different depending which device I use)
I just set up a website and it works using the ipv4 address, but if for some reason I lose the ipv4 address, which ipv6 address should I use, the one that's hosting the server?
My isp is xfinity.
networking router browser ip
asked Jan 21 at 15:22
user987938user987938
132
add a comment |
When using google and various other websites like https://www.whatismyip.com/ I've noticed that my ipv6 is different for my phone, on my laptop, and on my desktop but my ipv4 address stays the same.
Why isn't my ipv6 the same across all devices but my ipv4 is?
I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet and then each device gets assigned a local ip address?
Side note: Most of the time websites show me my ipv6 address when asking what my ip address is (which is different depending which device I use)
I just set up a website and it works using the ipv4 address, but if for some reason I lose the ipv4 address, which ipv6 address should I use, the one that's hosting the server?
My isp is xfinity.
networking router browser ip
asked Jan 21 at 15:22
user987938user987938
132
5
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41
add a comment |
When using google and various other websites like https://www.whatismyip.com/ I've noticed that my ipv6 is different for my phone, on my laptop, and on my desktop but my ipv4 address stays the same.
Why isn't my ipv6 the same across all devices but my ipv4 is?
I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet and then each device gets assigned a local ip address?
Side note: Most of the time websites show me my ipv6 address when asking what my ip address is (which is different depending which device I use)
I just set up a website and it works using the ipv4 address, but if for some reason I lose the ipv4 address, which ipv6 address should I use, the one that's hosting the server?
My isp is xfinity.
networking router browser ip
asked Jan 21 at 15:22
user987938user987938
132
When using google and various other websites like https://www.whatismyip.com/ I've noticed that my ipv6 is different for my phone, on my laptop, and on my desktop but my ipv4 address stays the same.
Why isn't my ipv6 the same across all devices but my ipv4 is?
I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet and then each device gets assigned a local ip address?
Side note: Most of the time websites show me my ipv6 address when asking what my ip address is (which is different depending which device I use)
I just set up a website and it works using the ipv4 address, but if for some reason I lose the ipv4 address, which ipv6 address should I use, the one that's hosting the server?
My isp is xfinity.
networking router browser ip
networking router browser ip
asked Jan 21 at 15:22
user987938user987938
132
asked Jan 21 at 15:22
user987938user987938
132
asked Jan 21 at 15:22
user987938user987938
132
asked Jan 21 at 15:22
user987938user987938
132
asked Jan 21 at 15:22
user987938user987938
132
132
5
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41
add a comment |
5
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41
5
5
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41
add a comment |
1 Answer
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IPv4 addresses are scarce. There are less than 4 billion addresses possible, while there are more people than that in the world. Therefore, your router allows multiple devices to share one IPv4 address. The downside is that the router need to keep track of who is talking with who. It will re-send all packets with translated addresses, which explains why all devices appear to have the IPv4 address of the router.
IPv6 is newer and designed to avoid this process altogether. Each device can have its own IPv6 address; you can easily get 4 billion IPv6 addresses just for yourself. The router may still keep track of connections, but it now only needs to do so for firewall reasons. There's no rewriting needed; packets that pass the firewall can be forwarded as-is.
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
add a comment |
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IPv4 addresses are scarce. There are less than 4 billion addresses possible, while there are more people than that in the world. Therefore, your router allows multiple devices to share one IPv4 address. The downside is that the router need to keep track of who is talking with who. It will re-send all packets with translated addresses, which explains why all devices appear to have the IPv4 address of the router.
IPv6 is newer and designed to avoid this process altogether. Each device can have its own IPv6 address; you can easily get 4 billion IPv6 addresses just for yourself. The router may still keep track of connections, but it now only needs to do so for firewall reasons. There's no rewriting needed; packets that pass the firewall can be forwarded as-is.
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
add a comment |
IPv4 addresses are scarce. There are less than 4 billion addresses possible, while there are more people than that in the world. Therefore, your router allows multiple devices to share one IPv4 address. The downside is that the router need to keep track of who is talking with who. It will re-send all packets with translated addresses, which explains why all devices appear to have the IPv4 address of the router.
IPv6 is newer and designed to avoid this process altogether. Each device can have its own IPv6 address; you can easily get 4 billion IPv6 addresses just for yourself. The router may still keep track of connections, but it now only needs to do so for firewall reasons. There's no rewriting needed; packets that pass the firewall can be forwarded as-is.
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
add a comment |
IPv4 addresses are scarce. There are less than 4 billion addresses possible, while there are more people than that in the world. Therefore, your router allows multiple devices to share one IPv4 address. The downside is that the router need to keep track of who is talking with who. It will re-send all packets with translated addresses, which explains why all devices appear to have the IPv4 address of the router.
IPv6 is newer and designed to avoid this process altogether. Each device can have its own IPv6 address; you can easily get 4 billion IPv6 addresses just for yourself. The router may still keep track of connections, but it now only needs to do so for firewall reasons. There's no rewriting needed; packets that pass the firewall can be forwarded as-is.
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
IPv4 addresses are scarce. There are less than 4 billion addresses possible, while there are more people than that in the world. Therefore, your router allows multiple devices to share one IPv4 address. The downside is that the router need to keep track of who is talking with who. It will re-send all packets with translated addresses, which explains why all devices appear to have the IPv4 address of the router.
IPv6 is newer and designed to avoid this process altogether. Each device can have its own IPv6 address; you can easily get 4 billion IPv6 addresses just for yourself. The router may still keep track of connections, but it now only needs to do so for firewall reasons. There's no rewriting needed; packets that pass the firewall can be forwarded as-is.
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
answered Jan 21 at 16:03
MSaltersMSalters
7,36711725
7,36711725
add a comment |
add a comment |
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5
"I thought a ip address(s) is supposed to be shared across all devices using the same router to access the internet" — it was never supposed to be this way. It's only the way it is with IPv4 due to the shortage of IPv4 addresses. In an ideal world (i.e., with IPv6), this is not needed. As for your website, are you not using a domain to access it?
– slhck
Jan 21 at 15:27
Not at this point no. So the router is assigning each device their own ipv6 addresses like they did back in the old days with ipv4?
– user987938
Jan 21 at 15:58
Yes. What that means for hosting depends on where you actually host your website. A device within your network?
– slhck
Jan 21 at 16:05
Yes it'll be a device within my network
– user987938
Jan 22 at 2:41