Tested on the Asus RT-AX58U but could work on any asus-merlin router.
Install Asus-Merlin on the router
Set the router to AP mode
Enable Administration > System > Enable JFFS custom scripts and configs
Set the router to a static IP instead of DHCP
Create all needed guest networks, in this example there will be Guest 2.5Ghz and Guest 5Ghz
Save the script to /jffs/scripts/services-start after it's done
Set chmod a+x /jffs/scripts/services-start
Reboot the router to apply changes
Discovery
Before editing the script we need to figure out the interface names, disconnect all ethernet cables except one and run ip a to check which interface is UP, keep switching between ports and running ip a to map all ports.
For example:
eth0 - LAN 1
eth1 - LAN 2
eth2 - LAN 3
eth3 - LAN 4
eth4 - WAN
eth5 - Main wifi 2.4Ghz
eth6 - Main wifi 5Ghz
wl0.1 - Guest wifi 2.4Ghz
wl1.1 - Guest wifi 5Ghz
Script
The following script assumes the layout above and creates 2 VLANs:
227 - LAN ports 1-4, Main wifi 2.5Ghz, Main wifi 5Ghz
11 (with client isolation) - Guest wifi 2.5Ghz, Guest wifi 5Ghz
Change the script according to your router model's layout and needs.
Code: Select all
#!/bin/sh
brctl delif br0 eth4
brctl delif br0 wl0.1
brctl delif br0 wl1.1
ip link add link eth4 name eth4.227 type vlan id 227
ip link add link eth4 name eth4.11 type vlan id 11
ip link set eth4.227 up
ip link set eth4.11 up
brctl addif br0 eth4.227
brctl addbr br1
brctl addif br1 eth4.11
brctl addif br1 wl0.1
brctl addif br1 wl1.1
ip link set br1 up
nvram set lan_ifnames="eth0 eth1 eth2 eth3 eth5 eth6 eth4.227"
nvram set lan1_ifnames="wl0.1 wl1.1 eth4.11"
nvram set lan1_ifname="br1"
nvram set br0_ifnames="eth0 eth1 eth2 eth3 eth5 eth6 eth4.227"
nvram set br1_ifnames="wl0.1 wl1.1 eth4.11"
nvram set br1_ifname="br1"
nvram set wl0.1_ap_isolate="1"
nvram set wl1.1_ap_isolate="1"
killall eapd
eapd
ethswctl -c hw-switching -o disable