New Cable modem and IP router scheme

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Clan_Hunter wrote:

I have a new Netgear cable modem, CM600 to which I added to my home setup with includes a Netgear R6250 router.  Prior to obtaining the CM600 my internal network was in the range of 192.168.100.1 - .25.  All was good in the world.  

The cable modem now has an assigned and apparently unchangeable IP of 192.168.100.1.

I reassigned the router to 192.168.100.2 which promptly takes everything offline til I reboot the router and when it comes back up it h as an IP of 192.168.1.1 and a message on the login screen, 'TO PREVENT A CONFLICT WITH YOUR ISP PROVIDER YOUR ROUTER ADDRESS WAS CHANGED TO 192.168.1.1'

What am I overlooking?  Why can't my router address be 192.168.100.2 and my leased addresses be in the range of 192.168.100.3 -192.168.100.25?

 

Regards,

 

CPerficio

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By normal network standards as far as I know a router is always at XXX.XXX.XXX.1 you can change it but would need to make sure your dhcp server is also handing out that address as the router otherwise it will break everything.