Two simple AP with 802.11r

gregclip · December 20, 2024, 10:10pm

I will start with my network topology:

Main Router (192.168.33.1) <-- LAN --> Openwrt1 (192.168.33.201,) <-- LAN --> Openwrt2 (192.168.33.202)

Main Router: no openwrt, managed by ISP, DHCP server
Openwrt1: no dhcp, wifi ap, 802.11.r, firewall, dnsmasq, odhcp disabled
Openwrt2: no dhcp, wifi ap, 802.11.r, firewall, dnsmasq, odhcp disabled

I am having a problem connecting clients to the OpenWrt2 router.
If a device is close to this router, it cannot connect to the internet through my network (I checked, and probably the client did not receive an IP address from the DHCP server).

When a device connects to OpenWrt1, everything works fine; the client receives an IP address and can access the internet. Additionally, when a device moves to the OpenWrt2 router and 802.11r transitions its connection to the second router, everything also works correctly.
The issue only occurs when the initial connection is made via the OpenWrt2 router.

I also noticed that clients connected to OpenWrt2 cannot access the 192.168.33.201 web page of the OpenWrt1 router (other local websites work fine, such as 192.168.33.1 from the main router). When client is connected to OpenWrt1 router he can access both routers` pages (201 & 202).

Where should I look for issues or misconfigurations?"

psherman · December 20, 2024, 10:25pm

Start by disabling 802.11r on both APs (restart after doing this) and see if the problem goes away.

If not, let's see the configuration:

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:

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

gregclip · December 20, 2024, 11:09pm

With disabled 802.11r there is still problem with connecting to router, but after a few attempts device is able to connect to it. But with enabled 802.11r it looks similar, so probably not problem here.

Logs:
192.168.33.201:

root@ax3000t-sypialnia:~# ubus call system board
{
	"kernel": "5.15.167",
	"hostname": "ax3000t-sypialnia",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.5",
		"revision": "r24106-10cc5fcd00",
		"target": "mediatek/filogic",
		"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
	}
}
root@ax3000t-sypialnia:~# 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 'fdd3:08f3:20cc::/48'

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

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.33.201'
	option netmask '255.255.255.0'
	option gateway '192.168.33.1'
	list dns '192.168.33.1'
	option delegate '0'

root@ax3000t-sypialnia:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '6'
	option band '2g'
	option htmode 'HE40'
	option cell_density '0'
	option legacy_rates '1'
	option country 'PL'
	option txpower '20'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '100'
	option band '5g'
	option htmode 'HE160'
	option cell_density '0'
	option txpower '23'
	option country 'PL'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option ieee80211r '1'
	option nasid 'XXX'
	option mobility_domain 'XXX'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option ieee80211k '1'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

root@ax3000t-sypialnia:~# 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'

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

root@ax3000t-sypialnia:~# cat /etc/config/firewall

config defaults
	option syn_flood '1'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'

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

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

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

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'

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'

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'

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'

192.168.33.202:

root@ax3000t-salon:~# ubus call system board
{
	"kernel": "5.15.167",
	"hostname": "ax3000t-salon",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.5",
		"revision": "r24106-10cc5fcd00",
		"target": "mediatek/filogic",
		"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
	}
}
root@ax3000t-salon:~# 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 'fd7f:2bdf:6cc5::/48'

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

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.33.202'
	option netmask '255.255.255.0'
	option gateway '192.168.33.201'
	list dns '192.168.33.1'
	option delegate '0'

config route
	option interface 'lan'
	option target '192.168.33.201/32'
	option gateway '192.168.33.1'

root@ax3000t-salon:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '6'
	option band '2g'
	option htmode 'HE40'
	option country 'PL'
	option legacy_rates '1'
	option txpower '20'
	option cell_density '0'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '100'
	option band '5g'
	option htmode 'HE160'
	option country 'PL'
	option txpower '23'
	option cell_density '0'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option ieee80211r '1'
	option nasid 'XXX'
	option mobility_domain 'XXX'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option ieee80211k '1'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

root@ax3000t-salon:~# 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'
	list rebind_domain 'free.aero2.net.pl'

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

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

root@ax3000t-salon:~# cat /etc/config/firewall

config defaults
	option syn_flood '1'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'

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

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

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

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'

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'

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'

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'

psherman · December 20, 2024, 11:24pm

Router 201:

Remove the legacy rates:

Try using 40 or 80MHz channel width:

gregclip:

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '100'
	option band '5g'
	option htmode 'HE160'
	option cell_density '0'
	option txpower '23'
	option country 'PL'

remove all lines after the network declaration:

gregclip:

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option ieee80211r '1'
	option nasid 'XXX'
	option mobility_domain 'XXX'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option ieee80211k '1'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

Remove the time zone line:

gregclip:

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

Router 202:
The gateway is wrong here -- it should be consistent with the upstream router (192.168.33.1):

gregclip:

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.33.202'
	option netmask '255.255.255.0'
	option gateway '192.168.33.201'
	list dns '192.168.33.1'
	option delegate '0'

Remove this route, it's unnecessary and incorrect:

Remove legacy rates and use a non-overlapping channel:

gregclip:

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '6'
	option band '2g'
	option htmode 'HE40'
	option country 'PL'
	option legacy_rates '1'
	option txpower '20'
	option cell_density '0'

Use 40 or 80MHz channel width and use a non-overlapping channel:

gregclip:

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '100'
	option band '5g'
	option htmode 'HE160'
	option country 'PL'
	option txpower '23'
	option cell_density '0'

remove all lines after the network:

gregclip:

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option ieee80211r '1'
	option nasid 'XXX'
	option mobility_domain 'XXX'
	option ft_over_ds '0'
	option ft_psk_generate_local '1'
	option ieee80211k '1'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

Remove the time zone:

gregclip:

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'
	option time_zone 'CET-1CEST,M3.5.0,M10.5.0/3'

Also verify that router 202 is connected via one of its lan ports.

Restart both devices and test again.

gregclip · December 21, 2024, 10:59am

I checked connection ports:
Openwrt1 uses Lan3 as input signal and Lan2 as connection to Openwrt2
Openwrt2 uses Lan3 as input.
Switching ports didn't change anything.

Updated configs:
201:

root@ax3000t-sypialnia:~# ubus call system board
{
	"kernel": "5.15.167",
	"hostname": "ax3000t-sypialnia",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.5",
		"revision": "r24106-10cc5fcd00",
		"target": "mediatek/filogic",
		"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
	}
}
root@ax3000t-sypialnia:~# 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 'fdd3:08f3:20cc::/48'

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

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.33.201'
	option netmask '255.255.255.0'
	option gateway '192.168.33.1'
	list dns '192.168.33.1'
	option delegate '0'

root@ax3000t-sypialnia:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '6'
	option band '2g'
	option htmode 'HE40'
	option cell_density '0'
	option country 'PL'
	option txpower '20'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '100'
	option band '5g'
	option htmode 'HE80'
	option cell_density '0'
	option txpower '23'
	option country 'PL'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'YYY'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

root@ax3000t-sypialnia:~# 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'

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

root@ax3000t-sypialnia:~# cat /etc/config/firewall

config defaults
	option syn_flood '1'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'

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

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

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

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'

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'

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'

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'

202:

root@ax3000t-salon:~# ubus call system board
{
	"kernel": "5.15.167",
	"hostname": "ax3000t-salon",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.5",
		"revision": "r24106-10cc5fcd00",
		"target": "mediatek/filogic",
		"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
	}
}
root@ax3000t-salon:~# 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 'fd7f:2bdf:6cc5::/48'

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

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.33.202'
	option netmask '255.255.255.0'
	option gateway '192.168.33.1'
	list dns '192.168.33.1'
	option delegate '0'

root@ax3000t-salon:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '1'
	option band '2g'
	option htmode 'HE40'
	option country 'PL'
	option txpower '20'
	option cell_density '0'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '36'
	option band '5g'
	option htmode 'HE80'
	option country 'PL'
	option txpower '23'
	option cell_density '0'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'YYY'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

root@ax3000t-salon:~# 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'
	list rebind_domain 'free.aero2.net.pl'

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

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

root@ax3000t-salon:~# cat /etc/config/firewall

config defaults
	option syn_flood '1'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'

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

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

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

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'

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'

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'

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'

The problem is only with wifi network, LAN client connected to Openwrt2 works instantly, but wireless one cannot establish connection.
Also LAN client from 202, cannot access webpage 192.168.33.201, but he can access 192.168.33.1.

gregclip · December 21, 2024, 11:05am

Also after removing that route I cannot access any more 192.168.33.202 when connected to 192.168.33.1. So probably that route wasn't incorrect?

psherman · December 21, 2024, 4:44pm

That doesn’t make sense to me because the openwrt lan is on the same subnet as the resource you are trying to reach. A route splint be necessary.

Can you draw a system topology diagram? Please be sure to indicate the ports used for each connection and the ip addresses of each device.

gregclip · December 21, 2024, 9:26pm

For me too

I decided to create separate network for my OpenWrt routers and right now it works, but I have still issue with connecting to 2 from 1 network.

Current topology:

192.168.33.1 (ISP) <--- ( lan1 - wan ) ---> OpenWrt1 <--- (lan2 - lan2) ---> OpenWrt2 (192.168.1.2)

OpenWrt1:

wan: 192.168.33.201
lan: 192.168.1.1 with dhcp for that subnet

With that configuration network works, all clients has internet access.

The only issue remains is connectivity in lan network. When client connected directly to 192.168.1.1 cannot ping or access 192.168.1.2.
When client is connected to 192.168.1.2 he can ping and access both 192.168.1.1 and 192.168.1.2 (so here everything works).

I think problem could be with routing, because 192.168.1.1 by default route trafic to 192.168.33.1, but 192.168.33.1 doesn;t have any information about subnet 192.168.1.1, so packets cannot be routed correctly? Iam not sure about that, but it is my only idea what happend with it.

psherman · December 21, 2024, 9:28pm

I do not see this subnet or address in the configs you shared.

I assume OpenWrt 1 is 192.168.33.201 and OpenWrt 2 is 192.168.33.202, right? Where is 192.168.1.0/24??

gregclip · December 21, 2024, 9:30pm

I reconfigured OpenWrt2 to use subnet 192.168.1.0/24. Also OpenWrt1 is reconfigured to use WAN (static 192.168.33.201) and LAN (192.168.1.0/24 subnet).

psherman · December 21, 2024, 9:31pm

So this means that your previous configuration is not representative of your current one??

Please share the new configuration.

gregclip · December 21, 2024, 9:37pm

OpenWrt1:

root@OpenWrt:~# ubus call system board
{
	"kernel": "6.6.60",
	"hostname": "OpenWrt",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "24.10-SNAPSHOT",
		"revision": "r28026-faebcc61eb",
		"target": "mediatek/filogic",
		"description": "OpenWrt 24.10-SNAPSHOT r28026-faebcc61eb",
		"builddate": "1731712289"
	}
}
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 'fd6b:c3bf:c24b::/48'

config device
	option name 'br-lan'
	option type 'bridge'
	list ports 'lan2'
	list ports 'lan3'
	list ports 'lan4'

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

config device
	option name 'wan'
	option macaddr '50:88:11:56:e3:e2'

config interface 'wan'
	option device 'wan'
	option proto 'static'
	option ipaddr '192.168.33.201'
	option netmask '255.255.255.0'
	option gateway '192.168.33.1'
	list dns '192.168.33.1'

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

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

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/soc/18000000.wifi'
	option band '2g'
	option channel '1'
	option htmode 'HE20'
	option country 'PL'
	option disabled '1'

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 'platform/soc/18000000.wifi+1'
	option band '5g'
	option channel '36'
	option htmode 'HE80'
	option country 'PL'
	option cell_density '0'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option ssid 'OpenWrt_5G'
	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'
	list rebind_domain 'free.aero2.net.pl'

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'

config dhcp 'wan'
	option interface 'wan'
	option ignore '1'
	option start '100'
	option limit '150'
	option leasetime '12h'

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

OpenWrt2:

root@ax3000t-salon:~# ubus call system board
{
	"kernel": "5.15.167",
	"hostname": "ax3000t-salon",
	"system": "ARMv8 Processor rev 4",
	"model": "Xiaomi Mi Router AX3000T",
	"board_name": "xiaomi,mi-router-ax3000t",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.5",
		"revision": "r24106-10cc5fcd00",
		"target": "mediatek/filogic",
		"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
	}
}
root@ax3000t-salon:~# 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 'fd7f:2bdf:6cc5::/48'

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

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.1.2'
	option netmask '255.255.255.0'
	option gateway '192.168.1.1'
	list dns '192.168.1.1'
	option delegate '0'

root@ax3000t-salon:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/18000000.wifi'
	option channel '1'
	option band '2g'
	option htmode 'HE40'
	option country 'PL'
	option txpower '20'
	option cell_density '0'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/18000000.wifi+1'
	option channel '36'
	option band '5g'
	option htmode 'HE160'
	option country 'PL'
	option txpower '23'
	option cell_density '0'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid 'XXX'
	option encryption 'psk2'
	option key 'XXX'
	option network 'lan'

root@ax3000t-salon:~# 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'
	list rebind_domain 'free.aero2.net.pl'

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

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

root@ax3000t-salon:~# cat /etc/config/firewall

config defaults
	option input 'ACCEPT'
	option output 'ACCEPT'
	option forward 'ACCEPT'
	option synflood_protect '1'

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

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

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

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'

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'

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'

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'

also route -n command:

OpenWrt1:

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.33.1    0.0.0.0         UG    0      0        0 wan
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 br-lan
192.168.33.0    0.0.0.0         255.255.255.0   U     0      0        0 wan

OpenWrt2:

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1      0.0.0.0         UG    0      0        0 br-lan
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 br-lan

psherman · December 21, 2024, 9:59pm

You changed your first openwrt device from a basic ap into a router.

Do you want to have 2 distinct networks??

gregclip · December 21, 2024, 10:09pm

Yes, you are right. I know it and that is not a problem for me. The first network (192.168.33.1) will be used only for Openwrt1 router. All devices will be assigned to 192.168.1.0/24 network.

psherman · December 21, 2024, 10:11pm

In that case, since no devices will be on the upstream network, there is no need to connect to the 192.168.1.0/24 from that upstream network.

gregclip · December 21, 2024, 10:15pm

That was my assumption, but still I have issues with lan connectivity in downstream network. So my guess was routing from upstream network, but I am not sure about that. Maybe there is some other configuration issue.

psherman · December 21, 2024, 10:26pm

So please restate the issue, with the exact addresses and method of testing.

gregclip · December 21, 2024, 10:32pm

Issue: cannot access 192.168.1.2 from any devices connected to 192.168.1.1.

Testing method: I am trying ping 192.168.1.2 and open luci page for that router, when connected to 192.168.1.1 (lan or wifi).

psherman · December 21, 2024, 10:35pm

So how are you grabbing the config files from openwrt 2?

gregclip · December 21, 2024, 10:38pm

I can connect directly to openwrt2 with lan/wifi or I can ssh into openwrt1 and from there can ssh to openwrt2.

Client connected to OpenWrt2 has access to luci webpage and can ping it; also he can ping and access OpenWrt1. So problem occurs only for client connected to OpenWrt1.