UDP Workaround Suggestions?

[Chopstix]

As the title says, I am looking for suggestions, if even possible, to work around UDP blocking on a firewall. Internet is via a 4G hot spot and the USP blocks UDP--they have already denied the request to allow it. I want to avoid adding a VPN device in the mix. Any thoughts?

[KimchiGUN]

@chopstix

Can you give us more deets on the end goal? Why are you doing or needing this?

Not trying to be nosey, but this will give me a broader sense of what's is at play.

Thanks,
KG!

[Chopstix]

@kimchigun Can't get remote viewing to work from the Reolink client. I suspect the UDP blocking by the ISP is preventing the NVR from connecting to the Reolink servers.

[joseph_1979]

@chopstix Have you captured a wireshark trace to see that you are able to at least communicate with the NVR? Are you able to trace at the NVR too?

Try to use upnp but this is not secured. It still uses UDP ports.

The easiest solution is to change mobile operator. Never came across a mobile operator blocking udp ports. If not possible then you have to use VPN.

You may ask support to see if they are able to allow only TCP on your NVR. But then forget any updates.

[KimchiGUN]

@chopstix

Just to confirm, have you tried changing the mobile ISP's DNS servers to google?

If you're mobile ISP gives you a public IP and not a CG NAT, you could try port forwarding 9000. Then manually pointing you client app to that IP and port.

[Chopstix]

@joseph_1979 Have not done a wireshark--it has been decades since I have used it. I just turned 54 yesterday and have zero desire for a Google refresher course hahahaha.

UPnP is already on. The ISP is an AT&T reseller so it's AT&T on the back end. They block everything by default. It's a county government plan so no way to switch but I am going to bring in a T-Mobile hotspot for testing.

[Chopstix]

@kimchigun hmmm, that I have not but the DVR uses Google DNS. The IP is not public so it is NAT'd at the ISP.

[joseph_1979]

@chopstix Disable upnp. Not needed. Eh.. a trace will definitely help.

Would you be able to go on-site and connect your PC and check you are able to connect to other cameras...eg your home cameras.

[KimchiGUN]

@chopstix

Let's see how the Tmobile device works before we go anything fruther... Let us know.

[Chopstix]

@joseph_1979 I'll be back out there when the T-Mobile hotspot gets here. Before I swap it out, I'll connect to their WiFi with my phone and see if I can access my home cameras--good tip, thanks!

[joseph_1979]

@chopstix If you need us to analyse the Wireshark trace let us know. We are experts :). This is fun. I cannot jot down the protocols I studied and came across so far.

But be careful of some logins :). This is peanuts.... and at 54....you have up. Never give up learning.

Not so much customers come to this community. The most active one is at Reddit. The moderator mbaster is quite busy answering queries and testing new products. They have even a technical guy from Reolink who provides technical details the moderators are unable to give. In this community we never had any such technical support other than us..... what we learnt through our experience in using some of the Reolink products.

[KimchiGUN]

Not so much customers come to this community. The most active one is at Reddit. The moderator mbaster is quite busy answering queries and testing new products. They have even a technical guy from Reolink who provides technical details the moderators are unable to give. In this community we never had any such technical support other than us..... what we learnt through our experience in using some of the Reolink products.

You know, I prefer this forum over reddit and FB group. Large portion of those post are from non technical, average, home users. Most of the questions are repeated over and over again. You will see a few good technical post within the week. But I know here, I can get answered or suggestions from you 2 that I know are technical. Not knocking the home/basic users, you have to start somewhere. You question can get lost in the that flood.

[joseph_1979]

@kimchigun Correct. I lack time to experiment due to my specialised work.

[KimchiGUN]

@joseph_1979

I can tinker and test all the time. Having been in the I.T. trenches for years and worked for a larged I.T. vendor that was high paced. Getting laid off 2 times during covid, I got in with a laid back company, time for me to cruise. Spend more time with the fam and enjoy a slower pace. I wish Reolink would send me more hardware (they did once) bruh! I'd test all day everyday!

[joseph_1979]

@kimchigun Hope that Alison will provide us with some units to test. This shall enable us to get more experience which shall help us to assist customers.

Uh... I wish I can slow down but being a workaholic what to expect :).