cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option channel '11'
option hwmode '11g'
option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
option htmode 'HT20'
option disabled '1'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'none'
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 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'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
option ra_slaac '1'
list ra_flags 'managed-config'
list ra_flags 'other-config'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
list ra_flags 'none'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
cat /etc/config/firewall
config defaults
option syn_flood 1
option input ACCEPT
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://dev.openwrt.org/ticket/10381
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
# 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
# allow interoperability with traceroute classic
# note that traceroute uses a fixed port range, and depends on getting
# back ICMP Unreachables. if we're operating in DROP mode, it won't
# work so we explicitly REJECT packets on these ports.
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
# include a file with users custom iptables rules
config include
option path /etc/firewall.user
### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip 192.168.45.2
# option dest wan
# option proto tcp
# option target REJECT
# block a specific mac on wan
#config rule
# option dest wan
# option src_mac xxxxxxxxxxxxxxx
# option target REJECT
# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP
# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip 192.168.16.235
# option dest_port 80
# option proto tcp
# port redirect of remapped ssh port (22001) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp
### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip 192.168.45.2
# option src_mac xxxxxxxxxxxxxxx
# option src_port 80
# option dest wan
# option dest_ip xxxxxxxxxxxxxxx
# option dest_port 120
# option proto tcp
# option target REJECT
#config redirect
# option src lan
# option src_ip 192.168.45.2
# option src_mac xxxxxxxxxxxxxxx
# option src_port 1024
# option src_dport 80
# option dest_ip xxxxxxxxxxxxxxx
# option dest_port 120
# option proto tcp
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 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'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
option ra_slaac '1'
list ra_flags 'managed-config'
list ra_flags 'other-config'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
list ra_flags 'none'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
Great! I'll leave you to the experts.
@psherman @RuralRoots @eduperez @tmomas @slh thanks a lot. I did not know that's what was being asked. I suppose what I said earlier about putting all 4 outputs in a single </> makes sense now that I have all the same 4 separated into their own </>. I hope the experts help me soon. I'm always grateful to them. Vlan needs a university 
I'm not sure what you're trying to do. The default configuration which you posted has one of the Ethernet ports for the wan network (to plug into a cable modem etc when not using the internal DSL modem) and the other three are the LAN. These three are both hardware switched with each other and software bridged to the br-lan lan bridge (which includes the wifi AP) via eth0.1
If you're running the web interface, the Network->Switch page makes this clear. A common situation with many devices is that the numbers marked on the outside of the case don't match the software port numbering. You can investigate this by plugging and unplugging one Ethernet cable at a time and watching the connection icons on the Switch page change. Make sure you understand the software numbers of each port.
@mk24 Thanks, Mike. What I'm trying to do is use the other Ethernet ports that currently if I plug a network cable into them and the other end of that cable to a computer, I do not get connection; that is, no access to the Internet is possible. So, now, there are only two Ethernet ports that are 'active' or work. The first one, which is WAN, and the second one. Ports 3 and 4 are not working. I'm aware about matching hardware ports to vlan ports. I'm not there yet, first, I must get ports 3 and 4 'active.' This is the main challenge now. Thanks a lot.
Looks like thia is a DSL modem/router (with no ethernet WAN port), and you need to use one of the LAN ports as WAN, right?
From your config files, I found a bit weird that the LAN pot seem to correspond with ports 0, 1, 2, 4 on the switch. Are you sure about this? Which device is this, exactly?
@eduperez thanks a lot. @psherman had helped me 'convert' one of the LAN ethernet ports as WAN. This is because the router does not have a dedicated WAN port. It is as you say a " DSL modem/router".
The only configuration I have done is the help @psherman gave me earlier, as described above.
I am at a loss what to do. But I know what I want: to be able to use Ethernet ports 3 and 4 on the device so that I can plug an Ethernet cable in them and the other end of that cable I can plug into a computer and get access to the Internet. Presently, there is no Internet connection on either of those ports.
Here is the link to that help earlier from @psherman Peter. Link
Thanks a lot.
What is upstream of the router you're having trouble with?
What IP address do you see in the IPv4 upstream (just post the fist 2 octets in bold for the moment aaa.bbb.ccc.ddd)?
@ Peter, thanks a lot. The Openwrt router is now connected to the WAN port of my ISP's router. This is how it will be connected when done with configuration. This is done now by connecting an Ethernet cable to the LAN/Ethernet port that you helped me re-purpose as a WAN port on the Openwrt router. Previously, it was connected to a switch with Internet access.
Again restating the problem: ports 3 and 4 of the openwrt router do not work. That means when i connect an ethernet cable to them, I do not get an IP address. But when I do so on port 2, I do. So, it's like ports 3 and 4 are not 'active' and may need to be configured in the vlan, for which I need help. That's my diagnosis, however.
I have taken a picture and shared here, perhaps words don't well express the technical bits. These pictures are from the 'overview' page of Luci:
Thanks a lot.
You don't need to redact RFC1918 addresses (i.e. anything in the 192.168.x.x, 10.x.x.x, 172.16.x.x-172.30.x.x ranges).
I'm going to take a guess that the gateway address there (under your redaction) is 192.168.1.1.
Your network file (posted here) indicates that your OpenWrt router has a LAN defined as 192.168.1.1.
From the earlier thread, @mk24 had advised the following:
I'm guessing you missed that... If my hunch is correct, you need to change your LAN address, then renew your computer's IP address and you should be able to get online.
ok... please post your current network file.
The Openwrt router address is presently: 10.0.1.1. Again, I'm able to go online using hardware Ethernet port 2 on the openwrt router, but not ports 3 and 4, when I connect a cable to these hardware ports.
Let's review your network file again... I want to look at exactly what is running on your device now.
@psherman Thanks, Peter. Here the result from cat /etc/config/network:
Again, please note, the IP is no longer 192.168.x.x
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 ''xxxxxxxxxxxx'::/48'
config atm-bridge 'atm'
option vpi '1'
option vci '32'
option encaps 'llc'
option payload 'bridged'
option nameprefix 'dsl'
config dsl 'dsl'
option annex 'b'
option tone 'av'
option ds_snr_offset '0'
config device
option name 'br-lan'
option type 'bridge'
list ports 'eth0.1'
config device
option name 'eth0.1'
option macaddr ''xxxxxxxxxxxx''
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'
config device
option name 'dsl0'
option macaddr 'xxxxxxxxxxxx'
config interface 'wan'
option proto 'dhcp'
option device 'eth0.2'
config interface 'wan6'
option device '@wan'
option proto 'dhcpv6'
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'
config switch_vlan
option device 'switch0'
option vlan '1'
option vid '1'
option ports '0 1 2 6t'
config switch_vlan
option device 'switch0'
option vlan '2'
option vid '2'
option ports '4 6t'
cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option channel '11'
option hwmode '11g'
option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
option htmode 'HT20'
option disabled '1'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'none'
According to the file you just posted, it is still 192.168.1.1.
OK. I have done a new one. That was the old file but was pointing out that as regards the IP, it had changed. For example, as you can see WIFI is still not yet set up. That's for another day 
Thanks for your patience, I must say!
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 'fdad:7158:cc26::/48'
config atm-bridge 'atm'
option vpi '1'
option vci '32'
option encaps 'llc'
option payload 'bridged'
option nameprefix 'dsl'
config dsl 'dsl'
option annex 'b'
option tone 'av'
option ds_snr_offset '0'
config device
option name 'br-lan'
option type 'bridge'
list ports 'eth0.1'
config device
option name 'eth0.1'
option macaddr ''
config interface 'lan'
option device 'br-lan'
option proto 'static'
option netmask '255.255.255.0'
option ip6assign '60'
option ipaddr '10.0.1.1'
config device
option name 'dsl0'
option macaddr ''
config interface 'wan'
option proto 'dhcp'
option device 'eth0.2'
config interface 'wan6'
option device '@wan'
option proto 'dhcpv6'
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'
config switch_vlan
option device 'switch0'
option vlan '1'
option vid '1'
option ports '0 1 2 6t'
config switch_vlan
option device 'switch0'
option vlan '2'
option vid '2'
option ports '4 6t'
Thank you. Next thing to look at ...
your device appears to have 2 100Mbps ports, and 2 1000Mbps ports. Let's verify that the ports are physically up.
You clearly have 2 ports working (the upstream port and the computer that you're using on that router) -- correct? Take a look at the switch page on LuCI and verify that both of those ports indicate an active link. Then take another ethernet device and connect it to each of the other two ports in turn. Does the port indicate a physical link has become active on each of those ports?