how to check if devices are on same network or not?

[mahesh18]

i have one host IP

172.16.10.100/16 and another host

172.16.20.200/24

how can we check that if they are in same network or not?

many thanks

mahesh

[Edison Ortiz]

The OP never asked about configuration in a router.

That's the problem with us techies, we just think about if the router supports the commands and we end up failing on those tricky questions during the exam :)

I've been burned many times assuming just that and now read the questions differently.

I have a feeling the OP saw this question in a Cisco exam :)

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Edison.

[royalblues]

use any online subnet calculator

http://jodies.de/ipcalc

Narayan

[Edison Ortiz]

The host 172.16.10.100 255.255.0.0 is on the same network as 172.16.20.200 255.255.255.0 but 172.16.20.200 255.255.255.0 is not in the same network as 172.16.10.100 255.255.0.0 - thus you will have connectivity issues between these devices as the path from one device to another may be different.

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Edison.

[royalblues]

Edison,

I think you put it the reverse way

The address 172.16.20.200/24 is on the same network as 172.16.10.100/16

Narayan

[mahesh18]

Hi ediortiz,

can u please explain me in more detail

many thanks

mahesh

[viyuan700]

hi mahesh

your network

172.16.10.100/16

network 172.16.0.0

first host 172.16.0.1

Last host 172.16.255.254

broadcast address 172.16.255.255

next network 172.17.0.0

So your network 172.16.20.200/24 and 172.16.10.100/16 are host 172.16.0.0/16 network