Orange ont setup,step by step, need help

Installing and Using OpenWrt Network and Wireless Configuration
1

I'm noob in terms of networks and networks administration please help.

First step is to have access to ONT device for management purpose all the time

config interface 'ont_leox'
	option proto 'static'
	option device 'eth1'
	option ipaddr '192.168.100.5'
	option netmask '255.255.255.0'

config interface 'orange'
	option proto 'pppoe'
	option device 'br-orange.35'
	option username '***'
	option password '***'
	option ipv6 'auto'

config device
	option type 'bridge'
	option name 'br-orange'
	list ports 'eth1'
	option bridge_empty '1'

config bridge-vlan
	option device 'br-orange'
	option vlan '35'
	list ports 'eth1:t'

firewall
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'
	list network 'ont_leox'
	list network 'orange'

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

config dhcp 'orange'
	option interface 'orange'
	option ignore '1'

Both both interfaces are under WAN firewall rules

  1. I need to be in vlan 35 to have internet in lucy I've mark vlan 35 as local is configured correctly?
  2. If interface orange is up I cannot communicate with interface ont_leox, how to fix it?

Next step is to get iptv service running. I know that I have o tag vlans 838 and 839 but I would like to have this pinned to only lan4 (physical 4-th port on switch) port so multicast wont spam my network and I wont expose my network to operator. lan4 port need to assign ip to 1 client. Unfortunately this does not work from so reason, can someone do review and tell me whats wrong?

config device
	option type 'bridge'
	option name 'orange_iptv'
	list ports 'lan4'
	option igmp_snooping '1'
	option bridge_empty '1'
	option macaddr '****

config bridge-vlan
	option device 'orange_iptv'
	option vlan '838'
	list ports 'lan4:t'

config bridge-vlan
	option device 'orange_iptv'
	option vlan '839'
	list ports 'lan4:t'

config interface 'orange_iptv'
	option proto 'static'
	option device 'orange_iptv'
	option ipaddr '192.168.40.1'
	option netmask '255.255.255.0'

firewall

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

config forwarding
	option src 'orange_iptv'
	option dest 'wan'

config rule
	option name 'orange_iptv_dns'
	option family 'ipv4'
	option src 'orange_iptv'
	option dest_port '53'
	option target 'ACCEPT'

config rule
	option name 'orange_iptv dhcp'
	option family 'ipv4'
	list proto 'udp'
	option src 'orange_iptv'
	option dest_port '67-68'
	option target 'ACCEPT'

dhcp

config dhcp 'orange_iptv'
	option interface 'orange_iptv'
	option start '2'
	option limit '3'
	option leasetime '12h'