Linksys E8450 (UBI) with OpenWrt 24.10.0 in "Dumb" AP mode

When following the Wi-Fi Extender/Repeater with Bridged AP over Ethernet guide it states to

"Move the WAN interface into the br-lan: In Network → Interfaces, click the “Devices” tab. Click the Configure... button for br-lan. In the Bridge ports dropdown, ensure that both Ethernet adapters are checked. [In versions of OpenWrt prior to 21.02: Under “Physical Settings” tab, ensure “Bridge interfaces” is ticked, and ensure BOTH of your interfaces (eth0, wlan0) are selected, in order to allow traffic between wireless and wired connections.]
Click Save and Save & Apply. "

If all instructions are followed, the AP will work until the AP is rebooted. Upon rebooting, the Ethernet ports will not return and you cannot log back into OpenWrt. I have found that NOT selecting "Ethernet switch: eth0" in network > interfaces > devices, fixes the issue of loosing all Ethernet functionally upon reboot. I am unable to get devices to connect to the internet when I don't have "Ethernet switch: eth0" selected but when I do, the Ethernet ports do not come back online after a reboot.
P.S,
Thank you all for your time in making OpenWrt :slight_smile:

There may be things in the wiki that are incorrect due to some edits and/or otherwise outdated.

Let’s see your config to fix it.

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:
grafik
Remember to redact passwords, 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
2 Likes
       "kernel": "6.6.73",
        "hostname": "OpenWrt",
        "system": "ARMv8 Processor rev 4",
        "model": "Linksys E8450 (UBI)",
        "board_name": "linksys,e8450-ubi",
        "rootfs_type": "squashfs",
        "release": {
                "distribution": "OpenWrt",
                "version": "24.10.0",
                "revision": "r28427-6df0e3d02a",
                "target": "mediatek/mt7622",
                "description": "OpenWrt 24.10.0 r28427-6df0e3d02a",
                "builddate": "1738624177"

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 'fd11:2f67:fa9a::/48'
        option packet_steering '1'

config device
        option name 'br-lan'
        option type 'bridge'
        option igmp_snooping '1'
        option ipv6 '0'
        list ports 'eth0'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'lan4'
        list ports 'wan'

config interface 'lan'
        option device 'br-lan'
        option proto 'static'
        option ipaddr '**.**.**.**'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option gateway '**.**.**.**'
        list dns '**.**.**.**'
        list dns '**.**.**.**'
        option delegate '0'
        list dns_search 'Network.Name'

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

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

config device
        option name 'eth0'
        option ipv6 '0'

config device
        option name 'lan2'
        option ipv6 '0'

config device
        option name 'lan1'
        option ipv6 '0'

config device
        option name 'lan3'
        option ipv6 '0'

config device
        option name 'lan4'
        option ipv6 '0'

config device
        option name 'wan'
        option ipv6 '0'

config device
        option name 'wl0-ap0'
        option ipv6 '0'

config device
        option name 'wl1-ap0'
        option ipv6 '0'
config wifi-device 'radio0'
        option type 'mac80211'
        option phy 'wl0'
        option band '2g'
        option channel 'auto'
        option htmode 'HT20'
        option cell_density '0'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'SSIDNAME'
        option encryption 'sae-mixed'
        option key 'SSIDPASS'
        option ieee80211w '0'

config wifi-device 'radio1'
        option type 'mac80211'
        option phy 'wl1'
        option band '5g'
        option channel '36'
        option htmode 'HE40'
        option cell_density '0'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'SSIDNAME'
        option encryption 'sae-mixed'
        option key 'SSIDPASS'
        option ocv '0'
config dnsmasq
        option domainneeded '1'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/lan/'
        option domain 'lan'
        option expandhosts '1'
        option cachesize '1000'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option localservice '1'
        option ednspacket_max '1232'

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

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'

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  00:11:22:33:44:66
#       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  00:11:22:33:44:55
#       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  00:11:22:33:44:55
#       option src_port         1024
#       option src_dport        80
#       option dest_ip  194.25.2.129
#       option dest_port        120
#       option proto    tcp

please note that this config is with adding the ETH0 to the bridge AND restarting JUST the bridge in Luc.
Thank you for your time in this matter.

Ah... just remove eth0. It doesn't belong here:

(the guide may be referring older swconfig methods, rather than more recent DSA config syntax; your device is DSA)

Delete these (wireless radio references do not belong in the network config file):

It is highly recommended to use either WPA2 or WPA3 instead of WPA2/WPA3 mixed mode. This is because mixed mode tends to cause issues with some client devices:

Reboot and things should work normally.

3 Likes

I am using the identical sister model RT3200 as dumb AP, and it is really easy if you just sacrifice the wan port and use only lan ports. Then you do not need to touch the bridge config at all.

Really old advice from me (originally from the old forum):

2 Likes

Removing eth0 from /etc/config/network did the trick, everything else is working. I could not find the devices WL0-AP0 nor WL1-AP0 in /etc/config/network or in /etc/config/wireless . Thank you for helping me out! xD

Agreed, I double checked gateway and DNS setting in AP with no issues. I also remove the WAN port from bridged device list. Thank you for your time :slight_smile:

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