Netgear r7800 VLAN question OpenWrt 21.02.1

Installing and Using OpenWrt Network and Wireless Configuration
15

Here's my config on my R7800 running OpenWrt 21.02.1

I can't say for sure the WAN VLAN is necessary or useful, but it doesn't harm anything.
LAN ports 2 and 4 are trunked VLAN links. LAN ports 1 and 3 are untagged on the NEWLAN VLAN.
I've got 5 bridges, one each for VLANs 3 (IOT), 4 (NEWLAN), 5 (GUEST), 6 (IPV6), and 7 (ONLY6).

A picture of LuCI rendering of the switch config for VLAN assignments:

Screen Shot 2022-02-05 at 20.49.36
Screen Shot 2022-02-05 at 20.49.361940×1776 325 KB

And the interface devices:

Screen Shot 2022-02-05 at 20.48.26
Screen Shot 2022-02-05 at 20.48.261940×834 109 KB

and the relevant network definitions from /etc/config/network

config interface 'lan'
	option proto 'static'
	option netmask '255.255.255.0'
	option ipaddr '192.168.1.1'
	option stp '1'
	option device 'br-lan'
	option delegate '0'
	
config interface 'wan'
	option proto 'dhcp'
	option device 'eth0'
	option ipv6 '1'

config interface 'guest'
	option proto 'static'
	option netmask '255.255.255.0'
	option ipaddr '172.31.66.1'
	option device 'br-guest'
	option delegate '0'
	option ip6assign '64'
	option ip6hint '2'

config interface 'iot'
	option proto 'static'
	option ipaddr '172.29.34.1'
	option netmask '255.255.255.0'
	option device 'br-iot'
	option delegate '0'

config interface 'local6'
	option device 'br-local6'
	option proto 'static'
	option ip6assign '64'
	option ipaddr '192.168.6.1'
	option netmask '255.255.255.0'
	option ip6hint '1'

config interface 'only6'
	option proto 'static'
	option device 'br-only6'
	option ip6assign '64'
	option ip6hint '6'
 
config switch
	option name 'switch0'
	option reset '1'
	option enable_vlan '1'

config switch_vlan
	option device 'switch0'
	option vlan '1'
	option description 'GUEST'
	option vid '5'
	option ports '1t 3t 6t'

config switch_vlan
	option device 'switch0'
	option vlan '2'
	option vid '2'
	option description 'WAN'
	option ports '0 5'

config switch_vlan
	option device 'switch0'
	option vlan '3'
	option vid '3'
	option description 'IOT'
	option ports '1t 3t 6t'

config switch_vlan
	option device 'switch0'
	option vlan '4'
	option vid '4'
	option description 'NEWLAN'
	option ports '1t 2 3t 4 6t'

config switch_vlan
	option device 'switch0'
	option vlan '5'
	option vid '1'
	option description 'DONOTUSE'

config switch_vlan
	option device 'switch0'
	option vlan '6'
	option vid '6'
	option description 'IPV6'
	option ports '1t 3t 6t'

config switch_vlan
	option device 'switch0'
	option vlan '7'
	option vid '7'
	option description 'ONLY6'
	option ports '1t 3t 6t'

 config device
	list ports 'eth1.4'
	option type 'bridge'
	option name 'br-lan'
	option macaddr 'xx:xx:xx:xx:xx:xx'

config device
	option type 'bridge'
	option name 'br-guest'
	list ports 'eth1.5'

config device
	list ports 'eth1.3'
	option type 'bridge'
	option name 'br-iot'

config device
	option type 'bridge'
	option name 'br-local6'
	option bridge_empty '1'
	list ports 'eth1.6'

config device
	option type 'bridge'
	option name 'br-only6'
	option bridge_empty '1'
	list ports 'eth1.7'
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