Static IP Addresses

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 to What is the next most logical IP address if I add another router to the mix?

Thank you!

Robert EhingerIT specialistAsked:
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Paul MacDonaldDirector, Information SystemsCommented:
Whatever you see fit, but it might make sense to assign from - .249.

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Do you have routers or Access points?
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 and
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Brian PiercePhotographerCommented: would be the most logical free IP (make sure its not being issued by DHCP - if it is remove it from the DHCP scope.
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.
bbaoIT ConsultantCommented:
technically the most close group of IPs should be to, as the whole set of IPs, including your existing 5 IPs, could be simply grouped into the same subnet (mask is the subnet number, while 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.
Robert EhingerIT specialistAuthor Commented:
We are using routers because - 1) we need the additional ports and 2) that is what was donated to the school.  The range from to is what we use for our clients. We have printers with static IPs of
Robert EhingerIT specialistAuthor Commented:
That printer range is
Reduce the DHCP range and use the IPs from .249 downward, as others have suggested.
bbaoIT ConsultantCommented:
> The range from to is what we use for our clients.

that may work though the scope is not that beautiful in binary. :-)
Fred MarshallPrincipalCommented:
The "client range" includes the wireless access points' addresses.  Don't allow the apparent overlap.
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