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Subnet mask for 2 different networks

Posted on 2011-09-21
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Last Modified: 2012-05-12
Hello Experts, we are installing some VOIP phones, and they are using dual network spliters, to avoid installing another NIC on the pc´s...

However:

PC1 has 192.168.5.200 - and the phone will have 192.168.2.10

they cannot see each other (ping) can I just re-adjust subnet mask to 255.255.248.0 ?

thanks
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Question by:enigmateam
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tmwsiy earned 250 total points
ID: 36576319
I would just do 255.255.0.0 and be done with it :)
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Expert Comment

by:Brian
ID: 36576339
That subnet mask does include both of those IPs.
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Author Comment

by:enigmateam
ID: 36576409
so i have to setup the subnet mask 255.255.248.0 or 255.255.0.0 on EVERY pc?

or just in my router?
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Expert Comment

by:tmwsiy
ID: 36576417
On each machine and the router if want them all to talk .
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by:Brian
Brian earned 250 total points
ID: 36576438
Every PC and device that is Static and your DHCP server.
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Author Comment

by:enigmateam
ID: 36576497
thanks will test it tomorrow and will tell u guys

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Expert Comment

by:justgrand19
ID: 36578032
the best way is to setup vlans if you switch will support it. I would check with your phone vendor to see if it is supported. That way your phones will not talk to your computers and you can use just one Ethernet drop to both.
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Expert Comment

by:tmwsiy
ID: 36578051
He said he had an unmanaged switch
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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