@Clive_A is there other option? I try to turn off DHCP and try to turn of dhcp on tp-link er7206 but i lose the internet conection and have to reset the tp-link. Does it possible to turn off dhcp on tp-link and let asus handle the dhcp instead? Does it possible to make tp-link ethernet port join the asus dhcp subnet (something like a switch)?

Clive_A wrote

Hi @Lyonelle 

Thanks for posting in our business forum.

What you asked is impossible to do.

They are different devices and they don't work in that way. VLAN I mean. Setting up the VLAN does not make it become a part of the ASUS clients.

  @Lyonelle 

if all you wish to achive is

What i want to achieve:

- Since i running out of port of asus router for other devices, i want to have additional to lan port. So i'm thinking about turn the lan port 3 and 4 of er7206 into additional lan port for asus router. 

Then why not set the Asus in access point mode. You then just have one DHCP server ( the ER7206 ) and one LAN. You can use all the LAN ports on both the asus and the 7206.

If you want to have a LAN subnet of 192.168.5.x then just change the 7206 IP and DHCP range to that.

  @MisterW for security reason. I have 2 other asus access point. In which it become a mesh network. Other wifi is not at my sight be 10 meters away. I place it near the garages If bad actor plug in the ethermet port. It allow them to gain access not just the asus mesh network but including the tp-link er7206. 

MisterW wrote

  @Lyonelle 

 

if all you wish to achive is

 

What i want to achieve:

- Since i running out of port of asus router for other devices, i want to have additional to lan port. So i'm thinking about turn the lan port 3 and 4 of er7206 into additional lan port for asus router. 

 

Then why not set the Asus in access point mode. You then just have one DHCP server ( the ER7206 ) and one LAN. You can use all the LAN ports on both the asus and the 7206.

If you want to have a LAN subnet of 192.168.5.x then just change the 7206 IP and DHCP range to that.