Guest wifi with two router setup using vlans

mikk · November 9, 2024, 1:24pm

I have working network environment where

Router A is pc engines apu2d as a main router (DHCP server). All the networks are handled here
Router B is a DD-WRT as a dumb AP

Router B has two wireless networks

Main (vlan1)
Guest (vlan3), clients must be isolated

Trunk port eth2 is used on router A to receive and put tagged clients into correct zones.

Router A (configuration topic here) - I'd rather not reconfigure it if possible.

Now, router B (DD-WRT), needs to be replaced by GL-MT6000 OpenWrt.
Please help me to configure new router B, GL-MT6000 OpenWrt.

On router A:

/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 'fde8:ad84:f183::/48'

config device
	option name 'br-lan'
	option type 'bridge'
	option ipv6 '0'
	list ports 'eth1'
	list ports 'eth2'
	list ports 'eth2.1'

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'
	option ipv6 'off'

config interface 'wan'
	option device 'eth0'
	option proto 'dhcp'
	option peerdns '0'
	option ipv6 'off'
	list dns '1.1.1.1'
	list dns '1.0.0.1'

config interface 'wan6'
	option device 'eth0'
	option proto 'dhcpv6'
	option auto '0'
	option reqaddress 'try'
	option reqprefix 'auto'

config interface 'guest'
	option device 'eth2.3'
	option proto 'static'
	option ipaddr '192.168.3.1'
	option netmask '255.255.255.0'

config device
	option type '8021q'
	option ifname 'eth2'
	option vid '1'
	option name 'eth2.1'

/etc/config/dhcp

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 authoritative '1'
	option readethers '1'
	option leasefile '/tmp/dhcp.leases'
	option localservice '1'
	option ednspacket_max '1232'
	list server '1.1.1.1'
	option doh_backup_noresolv '-1'
	list doh_backup_server '/use-application-dns.net/'

config dhcp 'lan'
	option interface 'lan'
	option start '100'
	option limit '150'
	option leasetime '12h'
	option dhcpv4 'server'
	option ra 'server'
	list ra_flags 'managed-config'
	list ra_flags 'other-config'

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 dhcp 'guest'
	option interface 'guest'
	option start '100'
	option limit '150'
	option leasetime '12h'
	option dhcpv4 'server'
	list dhcp_option '6,192.168.1.181,1.1.1.1'

/etc/config/firewall

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

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

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

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

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 src_ip 'fc00::/6'
	option dest_ip 'fc00::/6'
	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'
	option enabled '0'

config rule
	option name 'Allow-ISAKMP'
	option src 'wan'
	option dest 'lan'
	option dest_port '500'
	option proto 'udp'
	option target 'ACCEPT'
	option enabled '0'

config rule
	option name 'Support-UDP-Traceroute'
	option src 'wan'
	option dest_port '33434:33689'
	option proto 'udp'
	option family 'ipv4'
	option target 'REJECT'

config include
	option path '/etc/firewall.user'

config zone
	option name 'guest'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'
	list network 'guest'

config rule
	option name 'Allow-guest-DHCP'
	option src 'guest'
	option proto 'udp'
	option dest_port '67-68'
	option target 'ACCEPT'
	option family 'ipv4'

config rule
	option name 'Allow-guest-DNS'
	option src 'guest'
	option dest_port '53'
	option target 'ACCEPT'
	option dest 'lan'
	list dest_ip '192.168.1.181'

config forwarding
	option src 'guest'
	option dest 'wan'

config forwarding
	option src 'lan'
	option dest 'guest'

/etc/config/wireless - although not related to the current problem

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'pci0000:00/0000:00:10.0/0000:01:00.0'
	option hwmode '11g'
	option cell_density '0'
	option country 'DE'
	option txpower '8'
	option channel '10'
	option htmode 'HT20'
	option legacy_rates '1'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'x'
	option encryption 'psk2'
	option key 'x'

mikk · November 25, 2024, 6:43pm

Sir @psherman, may I ask a bit of your valuable time?

psherman · November 25, 2024, 9:20pm

Is your desire to have the lan tagged or untagged on eth2? If untagged, remove eth2.1. If tagged, remove eth2:

This can be deleted:

Next we need to see your new AP's config.

mikk · November 27, 2024, 11:17am

I would like to have the lan tagged on eth2, so I will remove eth2 from br-lan.

AP is running OpenWrt 21.02.
AP config follows:

/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 'fd14:8d08:ff5c::/48'

config device
	option name 'br-lan'
	option type 'bridge'
	list ports 'lan1'
	list ports 'lan2'
	list ports 'lan3'
	list ports 'lan4'
	list ports 'lan5'
	option macaddr 'x'

config device
	option name 'lan1'
	option macaddr 'x'

config device
	option name 'lan2'
	option macaddr 'x'

config device
	option name 'lan3'
	option macaddr 'x'

config device
	option name 'lan4'
	option macaddr 'x'

config device
	option name 'lan5'
	option macaddr 'x'

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.8.1'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option isolate '0'

config device
	option name 'eth1'
	option macaddr 'x'

config interface 'wan'
	option device 'eth1'
	option proto 'dhcp'
	option force_link '0'
	option ipv6 '0'
	option classlessroute '0'
	option metric '10'

config interface 'wan6'
	option proto 'dhcpv6'
	option device '@wan'
	option disabled '1'

config interface 'tethering6'
	option device '@tethering'
	option proto 'dhcpv6'
	option disabled '1'

config interface 'wwan6'
	option device '@wwan'
	option proto 'dhcpv6'
	option disabled '1'

config interface 'guest'
	option type 'bridge'
	option proto 'static'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option multicast_querier '1'
	option igmp_snooping '0'
	option isolate '0'
	option bridge_empty '1'
	option disabled '0'
	option ipaddr '192.168.4.1'

config interface 'wwan'
	option proto 'dhcp'
	option classlessroute '0'
	option metric '20'

config interface 'secondwan'
	option ipv6 '0'
	option proto 'dhcp'
	option metric '15'
	option force_link '0'
	option classlessroute '0'

config interface 'secondwan6'
	option proto 'dhcpv6'
	option device '@secondwan'
	option disabled '1'
	option metric '15'

config interface 'modem_1_1_2_6'
	option proto 'dhcpv6'
	option disabled '1'
	option device '@modem_1_1_2'

config rule 'policy_direct_rt'
	option lookup 'main'
	option suppress_prefixlength '0'
	option priority '1100'

config rule 'policy_default_rt_vpn'
	option mark '0x8000/0xc000'
	option lookup '8000'
	option priority '1101'
	option invert '1'

config rule6 'policy_direct_rt6'
	option lookup 'main'
	option suppress_prefixlength '0'
	option priority '1100'

config rule6 'policy_default_rt_vpn6'
	option mark '0x8000/0xc000'
	option lookup '8000'
	option priority '1101'
	option invert '1'

config rule 'policy_default_rt_vpn_ts'
	option lookup 'main'
	option priority '1099'
	option mark '0x80000/0xc0000'
	option invert '0'

/etc/config/firewall

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

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'
	list network 'wwan'
	list network 'secondwan'
	option output 'ACCEPT'
	option forward 'REJECT'
	option mtu_fix '1'
	option input 'DROP'
	option masq '1'

config forwarding
	option src 'lan'
	option dest 'wan'
	option enabled '1'

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-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'

config rule
	option name 'Support-UDP-Traceroute'
	option src 'wan'
	option dest_port '33434:33689'
	option proto 'udp'
	option family 'ipv4'
	option target 'REJECT'
	option enabled 'false'

config include
	option path '/etc/firewall.user'

config include 'nat6'
	option path '/etc/firewall.nat6'
	option reload '1'

config rule 'process_mark'
	option name 'process_mark'
	option dest '*'
	option proto 'all'
	option extra '-m owner --gid-owner 65533'
	option target 'MARK'
	option set_xmark '0x8000/0xc000'

config rule 'process_mark_dns'
	option name 'process_mark_dns'
	option dest '*'
	option proto 'all'
	option extra '-m owner --gid-owner 453'
	option target 'MARK'
	option set_xmark '0x8000/0xc000'

config rule 'process_explict_vpn'
	option name 'process_explict_vpn'
	option dest '*'
	option proto 'all'
	option extra '-m owner --gid-owner 20000'
	option target 'MARK'
	option set_xmark '0x20000/0x20000'

config rule 'wan_in_conn_mark'
	option name 'wan_in_conn_mark'
	option src 'wan'
	option dest '*'
	option set_xmark '0x8000/0xc000'
	option target 'MARK'
	option extra '-m mark --mark 0x0/0x3f00 -j CONNMARK --set-xmark 0x8000/0xc000'
	option enabled '0'

config rule 'lan_in_conn_mark_restore'
	option name 'lan_in_conn_mark_restore'
	option src 'lan'
	option dest '*'
	option set_xmark '0x8000/0xc000'
	option target 'MARK'
	option enabled '0'
	option extra '-m connmark --mark 0x8000/0xc000 -j CONNMARK --restore-mark --nfmask 0xc000 --ctmask 0xc000'

config rule 'out_conn_mark_restore'
	option name 'out_conn_mark_restore'
	option dest '*'
	option set_xmark '0x8000/0xc000'
	option target 'MARK'
	option enabled '0'
	option extra '-m connmark --mark 0x8000/0xc000 -j CONNMARK --restore-mark --nfmask 0xc000 --ctmask 0xc000'

config include 'swap_wan_in_conn_mark'
	option type 'script'
	option reload '1'
	option path '/etc/firewall.swap_wan_in_conn_mark.sh'
	option enabled '0'

config zone
	option name 'guest'
	option network 'guest'
	option forward 'REJECT'
	option output 'ACCEPT'
	option input 'REJECT'

config forwarding
	option src 'guest'
	option dest 'wan'
	option enabled '1'

config rule
	option name 'Allow-DHCP'
	option src 'guest'
	option target 'ACCEPT'
	option proto 'udp'
	option dest_port '67-68'

config rule
	option name 'Allow-DNS'
	option src 'guest'
	option target 'ACCEPT'
	option proto 'tcp udp'
	option dest_port '53'

config include 'vpn_server_policy'
	option type 'script'
	option path '/etc/firewall.vpn_server_policy.sh'
	option reload '1'
	option enabled '1'

config redirect 'dns_vpn'
	option name 'dns for vpn'
	option src 'lan'
	option src_dport '53'
	option dest 'lan'
	option dest_port '1653'
	option mark '!0x8000/0xc000'
	list proto 'tcp'
	list proto 'udp'
	option enabled '0'

config redirect 'dns_vpn_guest'
	option name 'dns for vpn guest'
	option src 'guest'
	option src_dport '53'
	option dest 'guest'
	option dest_port '1653'
	option mark '!0x8000/0xc000'
	list proto 'tcp'
	list proto 'udp'
	option enabled '0'

config rule 'process_mark_stubby'
	option name 'process_mark_stubby'
	option dest '*'
	option proto 'all'
	option extra '-m owner --gid-owner 410'
	option target 'MARK'
	option set_xmark '0x8000/0xc000'

config include 'vpn_client_deal_leak'
	option type 'script'
	option reload '1'
	option path '/etc/firewall.vpn_client_deal_leak.sh'
	option enabled '1'

config include 'glblock'
	option type 'script'
	option path '/usr/bin/gl_block.sh'
	option reload '1'

/etc/config/dhcp

config dnsmasq
	option domainneeded '1'
	option boguspriv '1'
	option filterwin2k '0'
	option localise_queries '1'
	option rebind_localhost '1'
	option local '/lan/'
	option domain 'lan'
	option expandhosts '1'
	option nonegcache '0'
	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 rebind_protection '0'

config dhcp 'lan'
	option interface 'lan'
	option start '100'
	option limit '150'
	option leasetime '12h'
	option dhcpv4 'server'
	option ra_slaac '1'
	option force '1'
	option dhcpv6 'disabled'
	option ra 'disabled'

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 domain
	option name 'console.gl-inet.com'
	option ip '192.168.8.1'

config domain
	option name 'console.gl-inet.com'
	option ip '::ffff:192.168.8.1'

config dhcp 'guest'
	option interface 'guest'
	option start '100'
	option limit '150'
	option leasetime '12h'
	list ra_flags 'none'

config dhcp 'secondwan'
	option interface 'secondwan'
	option ignore '1'

/etc/config/wireless

config wifi-device 'mt798611'
	option type 'mtk'
	option band '2g'
	option htmode 'HE40'
	option channel 'auto'
	option txpower '100'
	option country 'DE'
	option random_bssid '1'
	option disabled '0'
	option legacy_rates '0'

config wifi-iface 'wifi2g'
	option device 'mt798611'
	option mode 'ap'
	option network 'lan'
	option ifname 'ra0'
	option ssid 'GL-MT6000-022'
	option encryption 'psk2'
	option key 'x'
	option wds '1'
	option isolate '0'
	option ieee80211k '1'
	option bss_transition '1'
	option macaddr 'x'

config wifi-device 'mt798612'
	option type 'mtk'
	option band '5g'
	option channel 'auto'
	option htmode 'HE80'
	option txpower '100'
	option country 'DE'
	option random_bssid '1'
	option disabled '0'
	option legacy_rates '0'

config wifi-iface 'wifi5g'
	option device 'mt798612'
	option mode 'ap'
	option network 'lan'
	option ifname 'rax0'
	option ssid 'GL-MT6000-022-5G'
	option encryption 'psk2'
	option key 'x'
	option wds '1'
	option isolate '0'
	option ieee80211k '1'
	option bss_transition '1'
	option macaddr 'x'

config wifi-iface 'guest2g'
	option device 'mt798611'
	option network 'guest'
	option mode 'ap'
	option ifname 'ra1'
	option encryption 'psk2'
	option key 'x'
	option ssid 'GL-MT6000-022-Guest'
	option guest '1'
	option wds '1'
	option isolate '1'
	option disabled '0'
	option macaddr 'x'

config wifi-iface 'guest5g'
	option device 'mt798612'
	option network 'guest'
	option mode 'ap'
	option ifname 'rax1'
	option encryption 'psk2'
	option key 'x'
	option ssid 'GL-MT6000-022-5G-Guest'
	option guest '1'
	option disabled '1'
	option wds '1'
	option isolate '1'
	option macaddr 'x'