2023 - Change Cable Modem IP Address
I have seen several people asking how to change the IP address on their cable modem due to security concerns. I have those same concerns but have NOT seen the question answered anyway. (The discuss...
Forum Discussion
When you ask about changing the IP address, WHAT IP address are you talking about. There is an IP address ont he cable side of the modem, there is an internal address to the modem, and then there is the WAN ip address provided to either the internal router, or the device/router connected tot he ethernet connection of the modem.
That being said, the 192.168.100.1 address tot he modem can only be access to devices connected to the LAN side of the modem. Devices on the WAN side cannot access the 192.168.100, or even the 192.168.1, or 0 address, because the are non routable and ONLY again, accessible on the LAN side of your internet. Devices on the WAN side, cannot access those addresses.
With that being said the only IP address that can be changed is the wan IP address provided to a router connected to a stand alone modem, be either changing it's mac address, or connecting a different router. Changing that address however isn't going to really change things, as it's a wan IP address, and visible to the internet wherever you go. Accessing www.whatismyip.com will give you your wan IP address, unless you are using a VPN.
