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bandini981
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Posts: 25
Joined: Fri Jul 19, 2019 11:46 am

IP Cameras try to connect to CGNAT address

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.
 
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jvanhambelgium
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Posts: 985
Joined: Thu Jul 14, 2016 9:29 pm
Location: Belgium

Re: IP Cameras try to connect to CGNAT address

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
newbie
Topic Author
Posts: 25
Joined: Fri Jul 19, 2019 11:46 am

Re: IP Cameras try to connect to CGNAT address

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.

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