How can I stop cameras from making so manyt DNS requests
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I have security concerns over the use of the C100 and C200 Security Cameras.
In any 24 hour period a single camera makes around 22,750 DNS requests to one of five addresses.
The requests are split as:
euw1-relay-dcipc.i.tplinknbu.com 14071
n-device-api.tplinkcloud.com 1239
n-devs-dcipc.tplinkcloud.com 1029
n-deventry-dcipc.tplinkcloud.com 620
Each camera records to a microSD, is not connected to the app, and is kept separated from my main network. I access it (if I need to, which is not often) via a privately set up VPN directly to the devices MAC/IP address.
Is there a way to stop each camera from making so many requests (other than simply blocking them via a pi-hole)?
Also, what is the need for each camera to make so many requests out of my network? I do not believe it is simply to check for software updates as all camera work fine with no updates what so ever.
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The problem has now stopped for me. However, I did not install the beta and the camera's firmware version remains at 1.3
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@Janiek is there an update for the C210 as well? Mine that I bought last week which is on v1.3.1 did over 3000 DNS lookups in just a few hours - it's by far the biggest user of my DNS for no good reason. My older C200 isn't doing it though.
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Hi @Taomyn,
I have created a support ticket for your issue posted on the community below to better help you. You can reply to the support email to solve the issue.
Best Regards
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Any idea when we will see an update for the C100?
My C200 stopped the ecessive DNS requests, the C100 however still floods the network.
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@Solla-topee We are asking for the C100 not the C200!
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Hi,
For your C100, you can send an email to support.forum@tp-link.com with Title ' [Forum ID 578442 ] Model + Tap Cam DNS Query Beta ' and the C100's MAC and TP-Link ID to get a beta firmware, and then check if it will solve the problem.
Best Regards
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Subject: Re: How can I stop cameras from making so many DNS requests?
Hey there!
If you're looking to reduce the number of DNS requests made by your cameras, here are a few steps you can take:
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Static IP assignment: Assign a static IP address to each of your cameras. This way, they won't have to constantly query for IP addresses through DNS.
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Local DNS caching: Set up a local DNS caching server on your network. This can help reduce the number of external DNS requests by storing previously resolved IP addresses.
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Firewall rules: Configure your firewall to block outbound DNS requests from your cameras to external DNS servers. Instead, allow them to how to stop communicate with the local DNS caching server mentioned earlier.
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Firmware updates: Check if there are any firmware updates available for your cameras. Sometimes, manufacturers release updates that optimize network communication, which could potentially reduce the number of DNS requests.
By implementing these steps, you should be able to limit the excessive DNS requests made by your cameras. Let me know if you have any further questions!
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@ronsteriod412 What is this? It was already confirmed to be a bug and a patch (at least for the C200) has already been deployed. Not sure what your answer is for...
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@ronsteriod412 Thanks for the advice, I have stopped the DNS queries from leaving my network it is just annoying that they clog up my pihole network so finding other sites that are blocked near impossible, but I have become more acquainted with the software now and know how to filter the results so not a big deal anymore.
Still the top 7 sites blocked, in a 24 hour period, by my pihole are as follows:
| Domain | Hits | Frequency |
|---|---|---|
| rtsp-dcipc.tplinknbu.com | 17435 | |
| euw1-relay-i-0eb0a910865d982f6.dcipc.i.tplinknbu.com | 14564 | |
| aps1-relay-dcipc.i.tplinknbu.com | 14476 | |
| euw1-relay-i-05617405c733ebc34.dcipc.i.tplinknbu.com | 14463 | |
| n-device-api.tplinkcloud.com | 3832 | |
| n-devs-dcipc.tplinkcloud.com | 3144 | |
| n-deventry-dcipc.tplinkcloud.com | 1888 |
Still they aren't getting out of the network so there's a boon!
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