Asus RT-AC66U with merlin - isolated LAN port 3 with WIFI


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Hi all,

I’m trying to set up the RT-AC66U ( merlin 386.1_beta3 ) in a following mode :

WAN port is used for getting the internet ( ip range starting with 88* received via DHCP from WAN )

ASUS LAN DHCP IP range is 10.*

LAN port 1 is used for the Dell server IDRAC ( dhcp address within LAN DHCP – 10.*)

LAN port 2 is used for the KVM server ( dhcp address within LAN DHCP – 10.*)

LAN port 3 port should be used as an isolated bridge/vlan with WIFI 2,4GHz. The LAN port 3 cable is plugged to pFSense server ( where is running DHCP server with IP range 192* ) . The main goal is that WIFI clients get the IP range 192* and will be isolated from the network 10.*

See configuration picture below :


#Remove the LAN 3 port from default VLAN
robocfg vlan 1 ports "1 2 4 5t"
Create a new VLAN 10 where the port 3
robocfg vlan 10 ports "3 5t"
Remove the eth1 ( wifi 2.4g ) from default bridge
brctl delif br0 eth1
#Add the eth1 ( wifi 2.4g ) to newly created VLAN
vconfig add eth1 10
#Create a new bridge br1_pf
brctl addbr br1_pf
#Add a eth1 to new bridge
brctl addif br1_pf eth1
#Add a bridge br1_pf to vlan10
brctl addif br1_pf vlan10
#Enable Wifi 2.4 Ghz
ifconfig eth1 up

If I connect to 2.4Ghz – no IP range is assigned from the DHCP pool 192*

Do you know if is possible to use the bridge/LAN on Asus router for mentioned usage case? If yes, what is missing in my configuration?

Thank you for any kind of help

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