Help Setting VLANs for openwrt 24.10.5

As the title says i need help in setting VLANs on openwrt 24.10.5, i tried so many things for the past 2 days but obviously not everything it looks simple but is so complicated i don’t know what to do anymore.

So i have Router that serves DHCP internet and DHCP for the TV STBs, 3 managed switches and all are set up for VLAN 10 internet and VLAN 20 for iptv from my provider. The switches are working but i need to set up openwrt to serve also internet and on LAN 3 - VLAN 20 so i can connect TV STB to it. The router is as dumb ap.

Switch VLAN 10 & VLAN 20 trunk to WAN port on openwrt router

So i need the following

1. the downlink cable to be connected to the WAN port

2. Lan 1 and Lan 2 and Wi-Fi to pull DHCP from VLAN 10

3. Lan 3 to pull DHCP from VLAN 20

Any help would be really appreciated

To clarify, the OpenWrt device is purely a bridged AP, correct?

We need to see the following:

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button (red circle; this works best in the 'Markdown' composer view in the blue oval):

Screenshot 2025-10-20 at 8.14.14 PM

Remember to redact passwords, VPN keys, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall

Yes its purely bridged AP, the dhcp is served from main router and provider for IPTV.

I restarted the openwrt to defaults and only assigned static ip.

root@AX6S:~# ubus call system board
{
        "kernel": "6.6.119",
        "hostname": "AX6S",
        "system": "MediaTek MT7621 ver:1 eco:3",
        "model": "ASUS RT-AX53U",
        "board_name": "asus,rt-ax53u",
        "rootfs_type": "squashfs",
        "release": {
                "distribution": "OpenWrt",
                "version": "24.10.5",
                "revision": "r29087-d9c5716d1d",
                "target": "ramips/mt7621",
                "description": "OpenWrt 24.10.5 r29087-d9c5716d1d",
                "builddate": "1766005702"
        }
}
root@AX6S:~# cat /etc/config/network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option ula_prefix 'fdef:4dc7:b037::/48'
        option packet_steering '1'

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'

config interface 'lan'
        option device 'br-lan'
        option proto 'static'
        option ipaddr '192.168.1.6'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option gateway '192.168.1.1'
        list dns '8.8.8.8'

config interface 'wan'
        option device 'wan'
        option proto 'dhcp'

config interface 'wan6'
        option device 'wan'
        option proto 'dhcpv6'

root@AX6S:~# cat /etc/config/wireless

config wifi-device 'radio0'
        option type 'mac80211'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
        option band '2g'
        option channel '1'
        option htmode 'HE20'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'OpenWrt'
        option encryption 'none'

config wifi-device 'radio1'
        option type 'mac80211'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0+1'
        option band '5g'
        option channel '36'
        option htmode 'HE80'
        option disabled '1'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'OpenWrt'
        option encryption 'none'

root@AX6S:~# cat /etc/config/dhcp

config dnsmasq
        option domainneeded '1'
        option boguspriv '1'
        option filterwin2k '0'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/lan/'
        option domain 'lan'
        option expandhosts '1'
        option nonegcache '0'
        option cachesize '1000'
        option authoritative '1'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option nonwildcard '1'
        option localservice '1'
        option ednspacket_max '1232'
        option filter_aaaa '0'
        option filter_a '0'

config dhcp 'lan'
        option interface 'lan'
        option start '100'
        option limit '150'
        option leasetime '12h'
        option dhcpv4 'server'
        option ignore '1'
        option dynamicdhcp '0'

config dhcp 'wan'
        option interface 'wan'
        option ignore '1'

config odhcpd 'odhcpd'
        option maindhcp '0'
        option leasefile '/tmp/hosts/odhcpd'
        option leasetrigger '/usr/sbin/odhcpd-update'
        option loglevel '4'
        option piofolder '/tmp/odhcpd-piofolder'

root@AX6S:~# cat /etc/config/firewall
config defaults
        option syn_flood        1
        option input            REJECT
        option output           ACCEPT
        option forward          REJECT
# Uncomment this line to disable ipv6 rules
#       option disable_ipv6     1

config zone
        option name             lan
        list   network          'lan'
        option input            ACCEPT
        option output           ACCEPT
        option forward          ACCEPT

config zone
        option name             wan
        list   network          'wan'
        list   network          'wan6'
        option input            REJECT
        option output           ACCEPT
        option forward          REJECT
        option masq             1
        option mtu_fix          1

config forwarding
        option src              lan
        option dest             wan

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
        option name             Allow-DHCP-Renew
        option src              wan
        option proto            udp
        option dest_port        68
        option target           ACCEPT
        option family           ipv4

# Allow IPv4 ping
config rule
        option name             Allow-Ping
        option src              wan
        option proto            icmp
        option icmp_type        echo-request
        option family           ipv4
        option target           ACCEPT

config rule
        option name             Allow-IGMP
        option src              wan
        option proto            igmp
        option family           ipv4
        option target           ACCEPT

# Allow DHCPv6 replies
# see https://github.com/openwrt/openwrt/issues/5066
config rule
        option name             Allow-DHCPv6
        option src              wan
        option proto            udp
        option dest_port        546
        option family           ipv6
        option target           ACCEPT

config rule
        option name             Allow-MLD
        option src              wan
        option proto            icmp
        option src_ip           fe80::/10
        list icmp_type          '130/0'
        list icmp_type          '131/0'
        list icmp_type          '132/0'
        list icmp_type          '143/0'
        option family           ipv6
        option target           ACCEPT

# Allow essential incoming IPv6 ICMP traffic
config rule
        option name             Allow-ICMPv6-Input
        option src              wan
        option proto    icmp
        list icmp_type          echo-request
        list icmp_type          echo-reply
        list icmp_type          destination-unreachable
        list icmp_type          packet-too-big
        list icmp_type          time-exceeded
        list icmp_type          bad-header
        list icmp_type          unknown-header-type
        list icmp_type          router-solicitation
        list icmp_type          neighbour-solicitation
        list icmp_type          router-advertisement
        list icmp_type          neighbour-advertisement
        option limit            1000/sec
        option family           ipv6
        option target           ACCEPT

# Allow essential forwarded IPv6 ICMP traffic
config rule
        option name             Allow-ICMPv6-Forward
        option src              wan
        option dest             *
        option proto            icmp
        list icmp_type          echo-request
        list icmp_type          echo-reply
        list icmp_type          destination-unreachable
        list icmp_type          packet-too-big
        list icmp_type          time-exceeded
        list icmp_type          bad-header
        list icmp_type          unknown-header-type
        option limit            1000/sec
        option family           ipv6
        option target           ACCEPT

config rule
        option name             Allow-IPSec-ESP
        option src              wan
        option dest             lan
        option proto            esp
        option target           ACCEPT

config rule
        option name             Allow-ISAKMP
        option src              wan
        option dest             lan
        option dest_port        500
        option proto            udp
        option target           ACCEPT


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
#       option src              lan
#       option src_ip   192.168.45.2
#       option dest             wan
#       option proto    tcp
#       option target   REJECT

# block a specific mac on wan
#config rule
#       option dest             wan
#       option src_mac  00:00:00:00:00:66
#       option target   REJECT

# block incoming ICMP traffic on a zone
#config rule
#       option src              lan
#       option proto    ICMP
#       option target   DROP

# port redirect port coming in on wan to lan
#config redirect
#       option src                      wan
#       option src_dport        80
#       option dest                     lan
#       option dest_ip          192.168.16.235
#       option dest_port        80
#       option proto            tcp

# port redirect of remapped ssh port (22001) on wan
#config redirect
#       option src              wan
#       option src_dport        22001
#       option dest             lan
#       option dest_port        22
#       option proto            tcp

### FULL CONFIG SECTIONS
#config rule
#       option src              lan
#       option src_ip   192.168.45.2
#       option src_mac  00:00:00:00:00:55
#       option src_port 80
#       option dest             wan
#       option dest_ip  194.25.2.129
#       option dest_port        120
#       option proto    tcp
#       option target   REJECT

#config redirect
#       option src              lan
#       option src_ip   192.168.45.2
#       option src_mac  00:00:00:00:00:55
#       option src_port         1024
#       option src_dport        80
#       option dest_ip  194.25.2.129
#       option dest_port        120
#       option proto    tcp
root@AX6S:~#

I'm assuming that you have VLAN 10 untagged and VLAN 20 tagged on the uplink. I'm also assuming that VLAN 20 on port lan3 should be untagged.

Your device uses DSA. So here are the changes:

First, delete the wan interfaces:

Then add the wan port to br-lan:

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'wan'

Now add the bridge vlans to the network config file:

config bridge-vlan
        option device 'br-lan'
        option vlan '10'
        list ports 'lan1:u*'
        list ports 'lan2:u*'
        list ports 'wan:u*'

config bridge-vlan
        option device 'br-lan'
        option vlan '20'
        list ports 'lan3:u*'
        list ports 'wan:t'

Then edit the lan interface to use br-lan.10:

config interface 'lan'
        option device 'br-lan.10'
        option proto 'static'
        option ipaddr '192.168.1.6'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option gateway '192.168.1.1'
        list dns '8.8.8.8'

And finally add an unmanaged interface for vlan 20 using br-lan.20:

config interface 'iptv'
        option device 'br-lan.20'
        option proto 'none'

Save and restart. As long as the assumptions above are correct, your setup should work. It will now have:

  • wan port: VLAN 10 untagged, VLAN 20 tagged
  • ports lan1 and lan2: VLAN 10 untagged
  • port lan3: VLAN 20 untagged
1 Like

sorry but i dont know if they are tagged or untagged, here is screenshot from the switch ports, so port 3 is the cable that goes to the openwrt router. Does this changes aything?

I think that VLAN 10 is untagged there on port 3... VLAN 20 most certainly is.

Go ahead and implement as I suggested. If things break, you can just temporarily plug it into port 4 (or 5 or 6) to regain access to the AP.

1 Like

thank you very much i will try it now

I mean WOW, thank you man thank you :innocent: , you fixed my problem in few minutes and i was banging my head for 2 days :face_with_hand_over_mouth: .

The problem was definitely here

config bridge-vlan
        option device 'br-lan'
        option vlan '10'
        list ports 'lan1:u*'
        list ports 'lan2:u*'
        list ports 'wan:u*'

config bridge-vlan
        option device 'br-lan'
        option vlan '20'
        list ports 'lan3:u*'
        list ports 'wan:t'

i was trying so many diferent settings with grok and gpt and neither one of them knew what it was saying, so we are far from AGI :sweat_smile: .

THANK YOU one more time and have a nice day!

This is a prime example of why we do not allow any AI generated technical content on this forum.

Glad everything is working now!

1 Like

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