IPTV over AI Mesh node and rogue local IPs

[Antares*]

Hello everyone! This is my first post here, but I have already learned so much by reading this forum and it helped me make a decision when I was choosing my equipment. Therefore, first of all, thank you! I am a networking novice, so please excuse my limited unterstanding of the topic.

My problem is simple, but I have wasted so many hours searching for a solution. I have 2 Asus GT-AX6000s running the latest version of Asuswrt-Merlin. The one acting as an AI Mesh router is connected to my ISP's ONT and the other one (AI Mesh node) is connected to the first one via ethernet backhaul. Generally speaking, speed, range and stability has been pretty much flawless and I am very satisfied with the setup. My STB has to be connected to the node (also via cable) because it is used by my parents in their part of the house.

My ISP requires PPPoE for internet connection and WAN bridge for IPTV, so I set up 2 profiles under "WAN": one PPPoE and one WAN bridge with required VLANs and priorities. This configuration is the only one that makes the IPTV work. The problem I noticed after a while is that the other wired and wireless devices connected to both the router and the node randomly loose normal local IPs and get ones that look like 10.x.x.x. Also, the speed of those clients gets reduced. It took me some time to realise that this happens only when the WAN bridge is switched on and that the reduced speed is actually IPTV speed. When the WAN bridge is switched off, IP addresses and speed normalise. So, the DHCP server acting rogue is ISP's IPTV server. I have tried everything I have dug out from the internet and I have failed every time. I couldn't find a way to isolate the IPTV traffic or to use a firewall to block unwanted DHCP offers and let the wanted ones through. Setting up VLANs ends up in IPTV losing connection and its 10.x.x.x IP, no matter the way I try to set them up. It seems that the only way to do the kind of bridging I need is by using vlanctl and/or ethctl in the terminal, but those commands are really obscure and I couldn't figure them out by trying to decipher other people's examples. Lastly, I think I would like to keep using the current firmware, as opposed to flashing OpenWrt. Please correct me if I'm wrong.

The only workaround for now is using static IPs for my family clients while using a WAN bridge profile for the IPTV, but this is incovenient in the long run.

I apologise for the long post, but any help is greatly appreciated!

 

[killmeborg]

Are you talking about performance issue which the IPTV traffic cause other devices losing connection within the AIMesh system ? If yes, I think setting up QoS might help.

 

[degrub]

Are you talking about performance issue which the IPTV traffic cause other devices losing connection within the AIMesh system ? If yes, I think setting up QoS might help.

i think he's asking about client devices getting IP addresses from the wrong server.
Getting the VLANs working for IPTV and separate for the other client devices is probably the simplest approach.

 

[Antares*]

Thanks for both of your answers!
Degrub is right. Devices that get IP address from my ISP's IPTV server get drastically reduced download and upload speed and I can't see them in my router's settings. It's been 3 months now and nothing has changed for me - I rely on static IPs because I don't think there is an easy way to get the VLANs working the way I need due to my specific setup (using the STB over the node).

 

[killmeborg]

i think he's asking about client devices getting IP addresses from the wrong server.
Getting the VLANs working for IPTV and separate for the other client devices is probably the simplest approach.

Thank's for your elaboration.

 

[killmeborg]

Thanks for both of your answers!
Degrub is right. Devices that get IP address from my ISP's IPTV server get drastically reduced download and upload speed and I can't see them in my router's settings. It's been 3 months now and nothing has changed for me - I rely on static IPs because I don't think there is an easy way to get the VLANs working the way I need due to my specific setup (using the STB over the node).

To avoid getting IP address from your IPTV router, you have to disable the DHCP option. My IPTV experience is different from you, my ISP do not use VLAN and WAN bridge, instead, the IPTV signal simply go directly from the ISP's proprietary router (thru the lan port) to a set top box which connected to the TV's hdmi output. For me, instead of using the ISP's proprietary router, I use a separate router (running openwrt ) which diverts the IPTV signal to an AiMesh AP system using wired backhaul. In my setup, the router handles the IPTV signals and normal routing function and let the AiMesh APs handles the wireless and wired connection. You may take a look on this youtube video see if it will shred some light on your problem.