Need help forwarding samba and minidlna

┌──────────────────────────────┐
│ ISP ROUTER (STOCK FIRMWARE)  │ my neighbor's router (i subscribe to an internet service jointly with my neighbor)
│ 192.168.1.1                  │
└──────────────┬───────────────┘
┌──────────────┴───────────────┐
│ TENDA (STOCK FIRMWARE)       │ minidlna invisible but can access webpage http://192.168.0.134:8200 ( miniDLNA web page )
│ 192.168.1.100 / 192.168.0.1  │ samba4 invisible but accessible by manually typing \\192.168.0.134\
└──────────────┬───────────────┘
┌──────────────┴───────────────┐
│ TP-LINK (OPENWRT 17.01.7)    │ minidlna visible and accessible here
│ 192.168.0.134 / 192.168.3.1  │ samba4 visible and accessible here
└──────────────┬───────────────┘
┌──────────────┴───────────────┐
│ TVBOX (OPENWRT 23.05.3)      │ minidlna source
│ 192.168.3.96 / 192.168.96.1  │ samba4 source
└──────────────────────────────┘

Current TP-LINK firewall config :

config defaults
        option syn_flood '1'
        option output 'ACCEPT'
        option drop_invalid '1'
        option forward 'DROP'
        option input 'DROP'

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'
        option output 'ACCEPT'
        option masq '1'
        option mtu_fix '1'
        option forward 'DROP'
        option input 'DROP'

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 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'

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

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

config rule
        option name 'Allow-LuCI0'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest_port '80'
        option target 'ACCEPT'

config rule
        option name 'Allow-LuCI1'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest_port '80'
        option target 'ACCEPT'

config rule
        option name 'Allow-SSH0'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest_port '22'
        option target 'ACCEPT'

config rule
        option name 'Allow-SSH1'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest_port '22'
        option target 'ACCEPT'

config redirect
        option name 'Forward-Ping0'
        option proto 'icmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config redirect
        option name 'Forward-Ping1'
        option proto 'icmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config rule
        option name 'Allow-Ping0'
        option family 'ipv4'
        option proto 'icmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'ACCEPT'
        option enabled '0'

config rule
        option name 'Allow-Ping1'
        option family 'ipv4'
        option proto 'icmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'ACCEPT'
        option enabled '0'

config redirect
        option name 'Forward-Samba/NS/DS0'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dport '137-138'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '137-138'
        option target 'DNAT'

config redirect
        option name 'Forward-Samba/NS/DS1'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dport '137-138'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '137-138'
        option target 'DNAT'

config redirect
        option name 'Forward-Samba/SS0'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dport '139'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '139'
        option target 'DNAT'

config redirect
        option name 'Forward-Samba/SS1'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dport '139'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '139'
        option target 'DNAT'

config redirect
        option name 'Forward-Samba/SMB0'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dport '445'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '445'
        option target 'DNAT'

config redirect
        option name 'Forward-Samba/SMB1'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dport '445'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '445'
        option target 'DNAT'

config rule
        option name 'Allow-Samba/NS/DS0'
        option family 'ipv4'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '137-138'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/NS/DS1'
        option family 'ipv4'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '137-138'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/SS0'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '139'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/SS1'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '139'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/SMB0'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '445'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/SMB1'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '445'
        option target 'ACCEPT'

config redirect
        option name 'Forward-DLNA-TCP0'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dport '8200'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '8200'
        option target 'DNAT'

config redirect
        option name 'Forward-DLNA-TCP1'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dport '8200'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '8200'
        option target 'DNAT'

config redirect
        option name 'Forward-DLNA-UDP0'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dport '1900'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '1900'
        option target 'DNAT'

config redirect
        option name 'Forward-DLNA-UDP1'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dport '1900'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '1900'
        option target 'DNAT'

config redirect
        option name 'Forward-DLNA-IGMP10'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dip '224.0.0.1/32'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config redirect
        option name 'Forward-DLNA-IGMP10'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dip '224.0.0.1/32'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config redirect
        option name 'Forward-DLNA-IGMP20'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option src_dip '239.0.0.0/8'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config redirect
        option name 'Forward-DLNA-IGMP21'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option src_dip '239.0.0.0/8'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option target 'DNAT'
        option enabled '0'

config rule
        option name 'Allow-DLNA-TCP0'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '8200'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-TCP1'
        option family 'ipv4'
        option proto 'tcp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '8200'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-UDP0'
        option family 'ipv4'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '1900'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-UDP1'
        option family 'ipv4'
        option proto 'udp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '192.168.3.96'
        option dest_port '1900'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP10'
        option family 'ipv4'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '224.0.0.1/32'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP10'
        option family 'ipv4'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '224.0.0.1/32'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP20'
        option family 'ipv4'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.0.1/24'
        option dest 'lan'
        option dest_ip '239.0.0.0/8'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP21'
        option family 'ipv4'
        option proto 'igmp'
        option src 'wan'
        option src_ip '192.168.1.1/24'
        option dest 'lan'
        option dest_ip '239.0.0.0/8'
        option target 'ACCEPT'

Current TVBOX firewall config :

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

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

config zone
        option name 'wan'
        option input 'DROP'
        option output 'ACCEPT'
        option forward 'DROP'
        option masq '1'
        option mtu_fix '1'
        list network 'wan'
        option masq6 '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'

config rule
        option name 'Allow-LuCI-over-WAN'
        option family 'ipv4'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        list src_ip '192.168.4.1/24'
        option dest_port '80'
        option target 'ACCEPT'

config rule
        option name 'Allow-SSH-over-WAN'
        option family 'ipv4'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        list src_ip '192.168.4.1/24'
        option dest_port '22'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-TCP'
        option family 'ipv4'
        list proto 'tcp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        option dest_port '8200'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-UDP'
        option family 'ipv4'
        list proto 'udp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        list dest_ip '239.255.255.250'
        option dest_port '1900'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP-1'
        option family 'ipv4'
        list proto 'igmp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        list dest_ip '224.0.0.1/32'
        option target 'ACCEPT'

config rule
        option name 'Allow-DLNA-IGMP-2'
        option family 'ipv4'
        list proto 'igmp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        list dest_ip '239.0.0.0/8'
        option target 'ACCEPT'
        option enabled '1'

config rule
        option name 'NoTrack-Samba/NS/DS'
        option proto 'udp'
        option src 'lan'
        option dest 'lan'
        option dest_port '137-138'
        option target 'NOTRACK'
        option enabled '0'

config rule
        option name 'NoTrack-Samba/SS/SMB'
        option proto 'tcp'
        option src 'lan'
        option dest 'lan'
        option dest_port '139 445'
        option target 'NOTRACK'
        option enabled '0'

config rule
        option name 'Allow-Samba/NS/DS'
        option family 'ipv4'
        list proto 'udp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        option dest_port '137-138'
        option target 'ACCEPT'

config rule
        option name 'Allow-Samba/SS/SMB'
        option family 'ipv4'
        list proto 'tcp'
        option src 'wan'
        list src_ip '192.168.0.1/24'
        list src_ip '192.168.1.1/24'
        list src_ip '192.168.3.1/24'
        option dest_port '139 445'
        option target 'ACCEPT'

config redirect 'adblock_lan53'
        option name 'Adblock DNS (lan, 53)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '53'
        option dest_port '53'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan553'
        option name 'Adblock DNS (lan, 553)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '553'
        option dest_port '553'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan853'
        option name 'Adblock DNS (lan, 853)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '853'
        option dest_port '853'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan1443'
        option name 'Adblock DNS (lan, 1443)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '1443'
        option dest_port '1443'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan4343'
        option name 'Adblock DNS (lan, 4343)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '4343'
        option dest_port '4343'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan4434'
        option name 'Adblock DNS (lan, 4434)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '4434'
        option dest_port '4434'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan5353'
        option name 'Adblock DNS (lan, 5353)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '5353'
        option dest_port '5353'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan5443'
        option name 'Adblock DNS (lan, 5443)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '5443'
        option dest_port '5443'
        option target 'DNAT'
        option family 'any'

config redirect 'adblock_lan8443'
        option name 'Adblock DNS (lan, 8443)'
        option src 'lan'
        option proto 'tcp udp'
        option src_dport '8443'
        option dest_port '8443'
        option target 'DNAT'
        option family 'any'

How to make minidlna and amba4 discoverable by clients of TENDA's client and (optionally) ISP ROUTER's client ?
i'm following this thread to make minidlna visible from wan Minidlna serving LAN and WAN - #2 by VA1DER