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Forum Discussion
Network resets
For my own reasons I have my RBR50 configured to run on the network range of 192.168.100.x. Twice now the network range has been reset to 192.168.1.x with a message about the reason being the old rang...
Your modem may be using 192.168.100.x.
Uh, the modem is on the 71.63.x.x side of the router. I would be very much surprised that a modem on the public side of the router would be using a non-routable ip address.
RonKirkpatrick wrote:
Uh, the modem is on the 71.63.x.x side of the router. I would be very much surprised that a modem on the public side of the router would be using a non-routable ip address.Be surprised then. For example, all the CenturyLink modems have a non-routable IP address assigned to their switched ports (192.168.0.1) which can used to access the modem when the modem is in bridged mode. Any device (such as Orbi) plugged into the modem will get a WAN IP via DHCP.
- Both devices, Century Link modem and Orbi, should be doing Network Address Translation. Neither device should be putting 192.168.x.x addresses on the public network. The only ports on my Arris TM722 cable modem are 1 Power, 1 Coax, 1 Ethernet (plugged into the Orbi) and 2 Telephone.
Is the Century Link device a pure modem or a modem/router? Because if it's performing NAT, that implies it handles traffic with private IP addresses and must itself have a private IP address.
But that's orthogonal to the point that st_shaw and I have been trying to make. Even if a device doesn't perform NAT, which would be the case with a pure modem, it can still have a private IP address. The private address is a predictable address that makes it easier to log into the device.