I have a firewalla set up as a router with a main network and two VLANS (one guest, on IoT). I have an openwrt dumb AP (Linksys AX4200). I've successfully set up VLANS on the router that will show up on a VLAN interface on ethernet to my MacPro (firewalla to ethernet, to openwrt AP, to ethernet, to Mac). But when I assign a wifi radio to the VLAN I can't pull an IP address from anything (iPhone, iPad, notebook, etc). I've looked at the instructions for creating a guest wifi on dumb AP, but it doesn't show how to do it as a VLAN.
Any help (pointing me to a better article), or direct suggestions would be greatly appreciated!
Thanks so much!
Let’s take a look to see what is happening. We can probably resolve it fairly easily.
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:
ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
1 Like
thanks so much! that's really hopeful.
I'm working all day today, but I'll do so later tonight or first thing tomorrow morning, and post it right away.
root@OpenWrt:~# ubus call system board
{
"kernel": "6.6.73",
"hostname": "OpenWrt",
"system": "ARMv8 Processor rev 4",
"model": "Linksys MX4200v1",
"board_name": "linksys,mx4200v1",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "24.10.0",
"revision": "r28427-6df0e3d02a",
"target": "qualcommax/ipq807x",
"description": "OpenWrt 24.10.0 r28427-6df0e3d02a",
"builddate": "1738624177"
}
}
root@OpenWrt:~# 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 'fd19:81ae:4246::/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 '192.168.1.3'
option netmask '255.255.255.0'
option ip6assign '60'
option gateway '192.168.1.1'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
config device
option type '8021q'
option ifname 'br-lan'
option vid '10'
option name 'br-lan.10'
config interface 'Guest'
option proto 'static'
option device 'br-lan.10'
option ipaddr '192.168.10.3'
option netmask '255.255.255.0'
option gateway '192.168.1.1'
config device
option type '8021q'
option ifname 'br-lan'
option vid '20'
option name 'br-lan.20'
config interface 'IoT'
option proto 'static'
option device 'br-lan.20'
option ipaddr '192.168.10.3'
option netmask '255.255.255.0'
option gateway '192.168.10.1'
root@OpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'platform/soc@0/c000000.wifi'
option band '5g'
option channel '36'
option htmode 'HE80'
option country 'US'
option cell_density '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'Guest'
option mode 'ap'
option ssid 'guest'
option encryption 'sae-mixed'
option key '?????'
option ocv '0'
config wifi-device 'radio1'
option type 'mac80211'
option path 'platform/soc@0/c000000.wifi+1'
option band '2g'
option channel '1'
option htmode 'HE20'
option disabled '1'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'none'
config wifi-device 'radio2'
option type 'mac80211'
option path 'platform/soc@0/c000000.wifi+2'
option band '5g'
option channel '100'
option htmode 'HE80'
config wifi-iface 'default_radio2'
option device 'radio2'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'none'
root@OpenWrt:~# 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 dhcpv6 'server'
option ra 'server'
list ra_flags 'managed-config'
list ra_flags 'other-config'
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'
root@OpenWrt:~# 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 00:11:22:33:44:66
# 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
root@OpenWrt:~#
So the issue is that you haven't setup bridge-vlans. This is required for DSA devices.
I don't know what the port assignments are, but I'm going to assume that port lan1 is the uplink to the router and that ports 2 and 3 should be members of the lan.
Further, I don't know if there is an untagged network in the mix, but I'm going to guess that the main lan is untagged on the trunk.
So... here's how we fix your config:
Delete this:
and this:
add bridge VLANs, as follows:
config bridge_vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1:u*'
list ports 'lan2:u*'
list ports 'lan3:u*'
config bridge_vlan
option device 'br-lan'
option vlan '10'
list ports 'lan1:t'
config bridge_vlan
option device 'br-lan'
option vlan '20'
list ports 'lan1:t'
Edit your main lan interface to use br-lan.1:
config interface 'lan'
option device 'br-lan.1'
option proto 'static'
option ipaddr '192.168.1.3'
option netmask '255.255.255.0'
option ip6assign '60'
option gateway '192.168.1.1'
And now make your guest and iot networks unmanaged:
config interface 'Guest'
option proto 'none'
option device 'br-lan.10'
config interface 'IoT'
option proto 'none'
option device 'br-lan.20'
I also recommend using WPA2 or WPA3, but not mixed mode... some client devices have issues with mixed mode:
Remove the DHCP6 stuff form the lan dhcp server -- this should just be as follows:
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option ignore '1'
Then restart and test again.
thanks so much! I've only been using Luci. is there a guide to edit the files necessary in cli?
Personally, I just ssh into the device and use the vi text editor. You could achieve the same thing by copying the files to your computer, editing them with a text editor app, and then copying them back.
There is also the UCI command line , and this stuff can be done in LuCI following the DSA tutorial . Be careful with the LuCI method, though, as there is a greater likelihood of locking yourself out (or having the changes constantly revert) if the sequencing isn't quite right.
psherman, I can't thank you enough! I figured out in LuCI how to do what you laid out, and it worked.
I'm doing this for 3 AP's so one more question. what's the simplest way to get the files off the AP, so that I can edit them on the computer?
You can use scp to copy them to your computer and then back to the router/AP.
system
March 10, 2025, 7:02pm
10
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