TCP/IP network

Is 131.1.10.20 in the same network as 131.1.1.1

thanks
jskfanAsked:
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Chris StauntonCommented:
what subnet masks?

If I'm guessing that 131.1.1.1's subnet mask is 255.255.0.0 then yes, the ip 131.1.10.20 would fall into that subnet, but you really need to know what subnet mask is being used.


Chris
grbladesCommented:
131.1.10.20 is a public IP address and you can see the owner information at the following URL :-
http://www.ripe.net/whois?form_type=simple&full_query_string=&searchtext=131.1.10.20&do_search=Search

There is nothing stopping them subnetting it furthur themselves.

Why do you wish to know?
jskfanAuthor Commented:
grblades ,

that was just an example. I am not using that IP address.

Lilshooter
Yes Both have 255.255.0.0 as subnet mask
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jskfanAuthor Commented:
does it mean if I have

130.1.24.1  and 128.1.2.5

and both have 255.255.0.0 are they in the same subnet?

thanks
grbladesCommented:
255.255.0.0 means that the first two octets are the network and the last two octets are the host.
So 130.1.24.1 means 130.1 is the network part and 24.1 is the host part.
Therefore in your example they are not in the same network.

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Chris StauntonCommented:
jskfan to answer your question no, your two subnets are completely different.

Chris
Chris StauntonCommented:
So your first subnet that you mentioned the answer again is YES and the second question that you asked... The answer is NO.

grblades did a great job showing you an example of this. :)


Chris
grbladesCommented:
For more information see http://www.subnetonline.com/
jskfanAuthor Commented:
thank you all
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