Solved

Static IP Addresses

Posted on 2012-03-26
11
311 Views
Last Modified: 2012-04-10
We have a network in two building that spans several city blocks. In order to make wireless accessible in all corners of the building we have routers situated in various strategic locations. All have been given a static IP address ranging from 192.168.0.250 to 192.168.0.254. What is the next most logical IP address if I add another router to the mix?

Thank you!

Robert
0
Comment
Question by:RobertEhinger
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
  • +5
11 Comments
 
LVL 34

Accepted Solution

by:
Paul MacDonald earned 167 total points
ID: 37765756
Whatever you see fit, but it might make sense to assign from 192.168.0.245 - .249.
0
 
LVL 6

Expert Comment

by:slakic
ID: 37765775
Do you have routers or Access points?
0
 
LVL 12

Assisted Solution

by:HugoHiasl
HugoHiasl earned 167 total points
ID: 37765839
I assume that they installed access points. If you add other access points you would use the ip range going downward since 254 is the upper bound.

I additionally assume that your network has an DHCP server providing valid ip addresses. Make sure that you adjust the ip-range for dhcp to exclude the newly used ip-addresses for the access points.

For example the actual DHCP range could be  2-249 and now you need to adjust it to 2-247 if you add two additional access points with ips 192.168.0.248 and 192.168.0.249.
0
How to Defend Against the WCry Ransomware Attack

On May 12, 2017, an extremely virulent ransomware variant named WCry 2.0 began to infect organizations. Within several hours, over 75,000 victims were reported in 90+ countries. Learn more from our research team about this threat & how to protect your organization!

 
LVL 70

Assisted Solution

by:KCTS
KCTS earned 166 total points
ID: 37765848
192.168.0.249 would be the most logical free IP (make sure its not being issued by DHCP - if it is remove it from the DHCP scope.
0
 
LVL 6

Expert Comment

by:slakic
ID: 37765852
I would say, if those are Access Points, it doesn't matter, because, those addresses are solely for management purposes. Whichever you use from the range of 192.168.0., as long as you have it documented, is fine.
0
 
LVL 37

Expert Comment

by:bbao
ID: 37765879
technically the most close group of IPs should be 192.168.0.241 to 192.168.0.249, as the whole set of IPs, including your existing 5 IPs, could be simply grouped into the same subnet 192.168.0.240/28 (mask 255.255.255.240)

192.168.0.240 is the subnet number, while 192.168.0.255 is the broadcast address for the subnet.

this will significantly reduce your effort and improve runtime performance in identifying the subnet and applying ACLs accordingly.
0
 

Author Comment

by:RobertEhinger
ID: 37765887
We are using routers because - 1) we need the additional ports and 2) that is what was donated to the school.  The range from 192.168.0.101 to 192.168.0.249 is what we use for our clients. We have printers with static IPs of 197.168.0.3x.
0
 

Author Comment

by:RobertEhinger
ID: 37765917
That printer range is 192.168.0.3x
0
 
LVL 11

Expert Comment

by:gmbaxter
ID: 37766016
Reduce the DHCP range and use the IPs from .249 downward, as others have suggested.
0
 
LVL 37

Expert Comment

by:bbao
ID: 37766232
> The range from 192.168.0.101 to 192.168.0.249 is what we use for our clients.

that may work though the scope is not that beautiful in binary. :-)
0
 
LVL 26

Expert Comment

by:Fred Marshall
ID: 37767866
The "client range" includes the wireless access points' addresses.  Don't allow the apparent overlap.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…
How to get Spreadsheet Compare 2016 working with the 64 bit version of Office 2016
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question