Author Topic: Quick Subnetting question  (Read 1263 times)

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Offline Scrub206

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Quick Subnetting question
« on: May 03, 2011, 06:48:14 PM »
Are you able to subnet an IP address more than once? say take 192.168.1.0 and subnet it by /27 and /28 ?

currently working on a project and basicly theyre giving me 4 locations to set up a WAN for. and the number of employees for each locations. Telling me to subnet an IP to waste as little addresses as possible.

Offline MetalJunkie

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Re: Quick Subnetting question
« Reply #1 on: May 03, 2011, 09:17:10 PM »


Wait... Not the kind of sub net you were talking about?
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Offline Nekov

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Re: Quick Subnetting question
« Reply #2 on: May 04, 2011, 04:25:48 AM »
Yes you can. You should check for the number of employees on each location to determine which one needs more than, second and so on and start subnetting from that point forward.
The thing is you would not do 192.168.1.0 /27 and then /28. You would do /27, and then starting from the last IP address you use you would do /28. Later I will explain more if you need. Right now I have to leave.

Edit: So you if you subnet using /27 you would have a range of IPs going from 192.168.1.0 to 192.168.1.64. That would be your first subnet. After that you would can subnet again using 192.168.1.65/28 which would range until 192.169.1.96. If that fits your needs you can remain with /28 or if you need smaller sub networks you can use /29 after that and so on.

Hope this helps you.
« Last Edit: May 04, 2011, 06:33:27 AM by Nekov »
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Offline AcidLameLTE

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Re: Quick Subnetting question
« Reply #3 on: May 04, 2011, 07:48:19 AM »
Thanks for reminding me that I have to revise for my Data Networks exam next week.

Offline Scrub206

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Re: Quick Subnetting question
« Reply #4 on: May 04, 2011, 01:48:42 PM »
Yes you can. You should check for the number of employees on each location to determine which one needs more than, second and so on and start subnetting from that point forward.
The thing is you would not do 192.168.1.0 /27 and then /28. You would do /27, and then starting from the last IP address you use you would do /28. Later I will explain more if you need. Right now I have to leave.

Edit: So you if you subnet using /27 you would have a range of IPs going from 192.168.1.0 to 192.168.1.64. That would be your first subnet. After that you would can subnet again using 192.168.1.65/28 which would range until 192.169.1.96. If that fits your needs you can remain with /28 or if you need smaller sub networks you can use /29 after that and so on.

Hope this helps you.

that was perfect. exaclty what i was looking for thank you!. i had to subnet an IP by /26, /27, /28 and /29 for a project. was fun. but thank you for explaining. deffinatly helped!

Offline Nekov

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Re: Quick Subnetting question
« Reply #5 on: May 04, 2011, 02:17:39 PM »
Yes you can. You should check for the number of employees on each location to determine which one needs more than, second and so on and start subnetting from that point forward.
The thing is you would not do 192.168.1.0 /27 and then /28. You would do /27, and then starting from the last IP address you use you would do /28. Later I will explain more if you need. Right now I have to leave.

Edit: So you if you subnet using /27 you would have a range of IPs going from 192.168.1.0 to 192.168.1.64. That would be your first subnet. After that you would can subnet again using 192.168.1.65/28 which would range until 192.169.1.96. If that fits your needs you can remain with /28 or if you need smaller sub networks you can use /29 after that and so on.

Hope this helps you.

that was perfect. exaclty what i was looking for thank you!. i had to subnet an IP by /26, /27, /28 and /29 for a project. was fun. but thank you for explaining. deffinatly helped!

 ;)
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Offline MetalJunkie

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Re: Quick Subnetting question
« Reply #6 on: May 04, 2011, 03:00:37 PM »
deffinatly
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Offline Scrub206

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Re: Quick Subnetting question
« Reply #7 on: May 05, 2011, 12:42:32 AM »
Herp derp im tim and i think im cool

Offline MetalJunkie

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Re: Quick Subnetting question
« Reply #8 on: May 05, 2011, 01:00:34 AM »
Definitely.
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