insufficient of ip address

June 10, 2011 at 23:05:12
Specs: Macintosh
Hi,

I am very newbie in networking. My company's IP address will be running out soon. The range of Ip that are currently using is from 172.16.0.1-172.16.1.254. what will be the option available? Correct me if i am wrong, i can either

1. expand the subnet from /23 to /22 that will mean the ip address will increase fro 512 to 1024.

2. start using 172.16.2.1-172.16.3.254 that will give us another 512 free IPs.


Please advice


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#1
June 11, 2011 at 04:12:08
512 172.16.0.1-172.16.1.254 is the maximum you are going to get from that range no matter how you arrange it.

AS these are Class B Private addresses you can expand them as much as you like, anywhere between 172.16.0.0 to 172.31.255.255. You may need to make other adjustments depending on how the network is configured.

Stuart


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#2
June 11, 2011 at 10:17:07
you need to supernet. when you do so you can only supernet within ranges. you would want to start with what you have 172.16.0.0 so you don't have to renumber everything like you would going from x.x.2.x to x.x.3.x. You just have to change the subnet mask

\22 = 1024
172.16.0.0 - 172.16.3.255

\23 = 512
172.16.0.0 - 172.16.1.255

Answers are only as good as the information you provide.
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#3
June 12, 2011 at 05:42:10
Do you guys mean i shall change my subnet to /22 which will give me 1024 IPs? how will that affect my network as my network will be more congested. Thanks

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