IP Cameras try to connect to CGNAT address

bandini981 · Sun Sep 05, 2021 9:09 am

HI all,
lots of lines like this in my log file

Sep  5 06:42:06 192.168.0.1 firewall,info bogons from LAN forward: in:Camera out:WAN, src-mac xx:xx:xx:xx:xx:3d, proto UDP, 192.xx.x.9:20769->100.104.47.26:10376, len 77

I've a list of "bogons" addresses that must not be reached from internal addresses (192.).

Anyone knows why all of my EZVIZ cameras are trying to reach this address?

Many thanks.

jvanhambelgium · Sun Sep 05, 2021 9:34 am

Are you using some "app" from the vendor on your smartphone ?
Perhaps your app on your phone uses your mobile provider (3G/4G/whatever) => Internet-access/CGNAT
Is there an "intermediate" cloud platform that you are using ? (from EZVIZ). Perhaps that cloud-platform picked up the IP from your phone and somehow this IP got to the cams (who perhaps also have a link to the cloud-platform) and they "try" a direct connection for some reason ?

And for some reason your cam's are trying to connect to that IP ?

All your camera's have this ?

Ask the question to the vendor...I did the same when I saw my Internet-radio making strange calls to some cloud-platform "to gather statistics" which I pertinent block since then.

bandini981 · Sun Sep 05, 2021 10:59 pm

Are you using some "app" from the vendor on your smartphone ?
Perhaps your app on your phone uses your mobile provider (3G/4G/whatever) => Internet-access/CGNAT
Is there an "intermediate" cloud platform that you are using ? (from EZVIZ). Perhaps that cloud-platform picked up the IP from your phone and somehow this IP got to the cams (who perhaps also have a link to the cloud-platform) and they "try" a direct connection for some reason ?

And for some reason your cam's are trying to connect to that IP ?

All your camera's have this ?

Ask the question to the vendor...I did the same when I saw my Internet-radio making strange calls to some cloud-platform "to gather statistics" which I pertinent block since then.

Hi,
yes I use EZVIZ app (based on cloud of course) and I had the same thought but the issue does not happen every time I use the app. It happens randomly. I'm still monitoring the traffic.

IP Cameras try to connect to CGNAT address

IP Cameras try to connect to CGNAT address

Re: IP Cameras try to connect to CGNAT address

Re: IP Cameras try to connect to CGNAT address

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