Can the IP Address Range of Network Equipment be different to the Clients

I'm new to an IT Administrator role and the previous guy had things setup a little strange.
This includes the IP range of the entire network being a publicly used range which is causing problems.
In attempting to start the move to a dedicated LAN IP range the thought crossed my mind of the IP addresses of the managed switches and Wireless Access Points.
Can I change the IP addresses of these pieces of Hardware and the Computers etc attached to them still work?
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none-otherAsked:
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ngravattConnect With a Mentor Commented:
yeah.  you can create a management VLAN for all the network devices.  On each device create that VLAN and assign a IP address to it.

If you are using a classless routing protocol, you can even do something like this:

Setup the Network Equipment on 192.168.2.*
Setup the PCs Laptops etc on 192.168.1.*
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harbor235Commented:
Be careful here, if you are talking about only changing a dedicated interface used for management then yes you can. However, if the interface address you are changing is used for routing traffic than this could be a problem and cause connectivity issues for your internal systems.

More information mis needd here.

harbor235 ;}
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none-otherAuthor Commented:
I do only mean the management IP's of the switches / Access Points. None of them are DNS or DHCP servers etc.
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ngravattCommented:
you should be fine changing the IP address of the router/switches.  This is a best practice.  Dedicate a seperate subnet as your 'management network'.  If you use ACLs/firewalls, you can secure the devices even better.
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none-otherAuthor Commented:
Let me just check I get you....
For example:
Setup the Network Equipment on 192.168.0.*
Setup the PCs Laptops etc on 10.*
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