NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
Netgear Genie showing over 1900 connections
I've had this netgear CM500 modem for 2 years now. All of a suddent I've started to have issues with connectivity. I called my ISP but they said everything is fine on their end. I then tried switchin...
michaelkenward wrote:Freaky.
Perfectly correct - the Genie (desktop) program is right - all these computers are on the same subnet.
michaelkenward wrote:But the CM500 is just a modem. The network map will be down to the router. What is it?
Correct again. Lack of a NAT router, the modem does connect to the cable company headend, hand-out one Public IPv4 address (for one computer or for one router WAN/Internet port).These addresses are from your ISP (rcn.com/rcn.net) assigned IP-Network-Block 66.44.8.0 - 66.44.15.255. A cable headend is connecting a large amount of clients, so big IP subnets are nothing uncommon. /21 or /20 subnets on a single RF headend are typical, this makes 2046 available addresses on a /21 (255.255.248.0) or 4094 available addresses on a /20 (255.255.255.240.0) subnet.
michaelkenward wrote:Have you tried searching for all those IP addresses? Half the planet seems to be running on your network.
No, just some thousand customers from that very same ISP.
insainzeno nothing wrong, nothing to worry - except that you must ensure your computer firewall is configured to connect to a public network.
You're right, it's only my modem but the network map is not down only to my router. My modem is only connected to my computer but this is what it shows on Genie. And yes, I have tried to enter those IP addresses on my web browser but nothing comes up.
If this is a hardware issue, you might get more help, and find earlier questions and answers about your hardware, the CM500, in the appropriate section for that device. That's probably here:
Cable Modems & Routers