On Mon, 17 Jul 2023 17:10:54 -0700 Lew Wolfgang <wolfgang@sweet-haven.com> wrote:
On 7/17/23 13:47, joe a wrote:
You could use "ethereal" or "tcdump" to log the connection of one camera to the laptop when you boot that camera.
I've not read each and every post, but I suspect the cameras will turn out to be set to obtain address via DHCP, the LAPTOP is enabled to provide DHCP (as server) and the PC is not.
Daniel said he configured the cameras for static IP. IIRC. I've got mine (same brand) for DHCP from my Zyxel router.
But there's also a setting there for DNS. It can be "Auto" or "Static". Mine is auto, how about yours, Daniel?
Also have you tried running nmap against the cameras? Maybe try it from each of your computers.
Here's one of mine:
Starting Nmap 7.92 ( https://nmap.org ) at 2023-07-17 15:45 PDT Nmap scan report for 192.168..x.y Host is up (0.00093s latency). Not shown: 996 closed tcp ports (reset) PORT STATE SERVICE 53/tcp filtered domain 80/tcp open http 443/tcp open https 9000/tcp open cslistener No exact OS matches for host (If you know what OS is running on it, see https://nmap.org/submit/ ).
As your cameras and computer are on an isolated network, they can not get infected by malware, so you could disable the automatic boot.
Not a sure bet. MALWARE can hitch a ride on removable media. "AIR GAP" is not a panacea.
That's true. You can add a SD card in these cameras for local storage. so they can operate independent of cloud services.
I have some Reolink cameras too. They can operate independent of the cloud regardless of whether they have an SD card fitted. My cameras are isolated from the Intertubes and work just fine.
Malware could conceivably hitch a ride on the SD card I guess.
The camera's run embedded Linux. If you're interested, here's an analysis of hacking into a Reolink camera. Great sport!
https://www.thirtythreeforty.net/posts/2020/05/hacking-reolink-cameras-for-f...
Interesting article but somewhat out of date. You can access the cameras with a web connection to them. You can configure them to send video over FTP to a server etc etc. I have them connected to a Reolink NVR and then the video is backed up to a Linux server in a different place. So hopefully I will have video if anybody attacks them. Their support is pretty good and their support website has new information almost daily. Can be confusing sometimes but at least it's up to date. Oh and they replaced a failed camera without quibble under guarantee.
Regards, Lew