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 a lot but no sure, can you guys check this configuration?? i don't use vlan 1, vlan 2 is wan and vlan 3 is lan. is this correct to keep wan an lan traffic separated? or i'm messing up things?
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 termination, all routing and serving all devices.
Now you want to do what? Have the TD-W8970 to do some routing, and use the R7800 as AP? Or you want to keep the TD-W8970 as a modem and the R7800 as a router, but "re-use" the ports of the TD-W8970 as an "extension" of R7800 switch?
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 wondering if this configuration is correct to keep wan and lan separeted. single cable should provide bridged modem to R7800 (for ppp/routing/dhcp/wifi/sqm/etc..) and lan management for TD-W8970 (i connect my desktop pc to R7800 lan and laptop to R7800 wifi).
keep the TD-W8970 as a modem and the R7800 as a router, but "re-use" the ports of the TD-W8970 as an "extension" of R7800 switch?
yes, TD-W8970 only as modem no services at all (used imagebuilder to remove dhcp etc.. and wifi is turned off) and use switch as an extension of the R7800 if needed for lan devices.
my main concern is if the configuration is correct to keep lan/wan separated, also on the single cable.
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 that be 1 or 4--I don't know) for the cable you are running to the other router. It's just tidier that way.
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
device i pretty old and is on 24/7 365, so who knows maybe hardware fault, from time to time i test the port again but lo luck.. still slow compared to others
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.