Arris Cable Modem Hidden Address

[hank rizzo]

I think I stumbled on to something, I have 400mbps internet, after installing the Hikvision NVR and 16 cameras, youtube was buffering . I know cable modem login is at 192.168.0.1 so I logged into the modem to see if there were FEC errors with the modem. I notices the web address had changed to 192.168.100.1.

I thought HUMMMM the NVR defaulted 192.168.188.1 to the cameras. Well that can never be any good, The cameras are in that same ip scheme as the cable modem. So I set the cameras to 10.0.0.1 and now the buffering is gone away. Attached is all the errors before the change. after the change no errors

 

[alastairstevenson]

I think I stumbled on to something,

I notices the web address changed to 192.168.100.1. I thought HUMMMM the NVR defaulted 192.168.188.1 to the cameras.

Sorry, but I for one have no idea what you're trying to impart here.

 

[hank rizzo]

I am trying to say that I can log into the cable modem on 2 ip addresses 192.168.0.1 and 192.168.100.1

The hikvision nvr automaticly assigned IP address to the cameras of 192.168.188.1,
That would put the cameras in the same ip scheme as the cable modem. Causing cable modem to mess up, causing slow speeds. So I changed the ip address of the cameras to 10.0.0.1 IP scheme to get camera traffic off cable modem.

I just checked to confirm again, it's been 12 hrs I logged into the cable modem at 192.168.100.1 and no errors and the internet is not slowing down anymore.

Those FEC errors are "Foward Error Corrections " the modem is trying to correct data packets. There should never be any uncorrected errors. So there was a big problem going on with my modem.

 

[Art K]

192.168.0 and 192.168.100 should be two completely separate "networks" because of a thing called a "netmask" - the netmask should be 255.255.255.0 which means 192.168.0 and 192.168.100 are separate.

Downstream errors are errors in data coming TO you, as in download. And to be honest, the addressing of your cameras shouldn't have changed anything.

Did you reboot the modem at some point?

 

[hank rizzo]

I did not touch the Modem at all.

I guess I can experiment and set back the cameras to 192.168.188.1 IP scheme, to see if the modem picks up errors again and see if youtube starts to buffer.

 

[Art K]

Do you have UPNP enabled in the modem/router, and/or use the cameras through your phone? I'd worry about outside attacks taking up bandwidth. Maybe with the address move, you put the cameras out of reach of outsiders.

The Internet is a dangerous place these days. I constantly get scanned by subverted cameras - not HIKvision, but even still, black-hats are trying to get into everything they can these days.