hi all! i have a TD-W8970 and a R7800 both with 19.07.2. configured the 8970 as a bridged modem and the 7800 to do routing/wifi/dhcp/sqm and all the good stuff. all is working good. now i'd like to use a single cable from one to the other to use both wan an lan and free some ports, since i've read …

It's not clear what you are trying to do. I infer from your [post that your current situation is that you have the TD-W8970 working as a modem, and then you are running a cable form one of it's LAN ports to your R7800 WAN port, which is set as probably PPPoE. The R7800 is doing the PPPoE terminatio…

TD-W8970 working as a modem, and then you are running a cable form one of it's LAN ports to your R7800 WAN port, which is set as probably PPPoE. The R7800 is doing the PPPoE termination, all routing and serving all devices. this is correct. but since it's my first time using vlans, i was wonderin…

used the configuration described in my first post and it's working correctly.. for my knowledge/reading this should be the corect way to keep wan/lan separated also with single cable. if some guru finds out that it completely wrong please let me know :slight_smile: many thanks to all. Y

I noticed that you have LAN 4 port on the 8970 off--maybe you might not be using it now, but it's probably best to have it working so that you don't later try to connect to it and wonder why there is no connection. And if I were you, I would actually use the port that's next to the xDSL port (let t…

port 4 doesn't work well on my 8970, often the speed of connected devices is very slow compared to same device connected to other ports. so i marked that port as dead and put electrical tape on it to avoid plugging in whatever :slight_smile: device i pretty old and is on 24/7 365, so who knows mayb…

It's best to stay your own topic rather than taking over old topics. Anyway, I am not sure what you are trying to achieve. Why are you keeping VLAN 1 of you are turning all ports off for it? And why are you tagging WAN for both VLAN 2 and VLAN 3?

my question is about the setup discussed in this topic, i quoted the pic in this topic, it is not my setup, and i am not trying to achieve anything, my question is just for knowledge since i'm no expert and trying to learn something. so i'll try to ask again: [image] yitida: is it really neces…

[image] yitida: since we have 2 interfaces on device and no additional VLAN can the cpu ports be untagged? No. Usually the CPU ports must be tagged. In very few cases have I seen CPU ports untagged and they were only for the lan without any additional vlans.

Vlan newbie advice

Installing and Using OpenWrt Network and Wireless Configuration

Hegabo April 7, 2020, 6:58am 4

I was considering doing the same (except that instead of your R7800 I would use a Raspberry Pi, so I would be forced to use one cable and wouldn't have the option of using two).

See the post below. I didn't try it, but you can start from there