Installed openwrt on raspberry pi 4
Was able to make it work when behind ISP router. Would love to get rid of it.
I need only WiFi lan, so no dongle required here.
When I configure WAN interface as eth0 device i get no link.
Tried to override MAC with ISP router's.
Removed br-lan.
Set lan to use only radio0.
How do you even debug this?
The Pi4 is a great wired router... but
The Pi's wifi is terrible. It is a low end 1x1 radio with a small PCB trace based antenna. It cannot operate in 2.4 and 5G bands simultaneously, and doesn't handle multiple devices/users well in terms of throughput. You'll notice that it has very limited range and speed.
The radio should not be listed in the network config file and it's hard to see what else might be going on from a screenshot...
Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
Remember to redact passwords, MAC addresses and any public IP addresses you may have:
ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
@psherman By the way i've hacked in an external antenna.
root@OpenWrt:~# 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 'fddd:cf65:f0e6::/48'
config interface 'lan'
option device 'phy0-ap0'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option ip6assign '60'
config device
option name 'eth0'
option macaddr 'EC:08:6B:7E:E1:C9'
config interface 'wan'
option proto 'dhcp'
option device 'eth0'
option hostname '*'
root@OpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'platform/soc/fe300000.mmcnr/mmc_host/mmc1/mmc1:0001/mmc1:0001:1'
option channel '36'
option band '5g'
option htmode 'VHT80'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'room148'
option encryption 'none'
root@OpenWrt:~# 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 cachesize '1000'
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 filter_aaaa '0'
option filter_a '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 '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'
root@OpenWrt:~# cat /etc/config/firewall
config defaults
option syn_flood 1
option input REJECT
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://github.com/openwrt/openwrt/issues/5066
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
# 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
### 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 00:11:22:33:44:66
# 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 00:11:22:33:44:55
# option src_port 80
# option dest wan
# option dest_ip 194.25.2.129
# 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 00:11:22:33:44:55
# option src_port 1024
# option src_dport 80
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
1 Like
not really going to help, it still sucks.
What are you plugging eth0 into now? If it is anything Ethernet at least the green carrier light should come on.
Run ip link show, you should see "UP" and "LOWER_UP" on eth0.
Do not do this, as wifi device names may change. If the only device is wifi, leave the device line out and wifi will attach to the interface due to option network in the wifi config. Leaving br-lan in place is recommended in case you want to add a USB Ethernet etc. in the future. Initially br-lan will have no ports, again the wifi config will install it.
Nope it is DOWN
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
This suggests that there is a physical issue with the connection on the ethernet port. What is the device on the other side of the ethernet cable? Have you tried another known good ethernet cable?
That is a lot of skill...
1 Like
There is no other device right now. (At least i think so)
As i mentioned everything worked when I plug raspberry eth0 to lan port of router from ISP.
I also hacked typeC charging it was way more difficult.
2 Likes
You mean that the cable in eth0 is not connected to anything at all?
So, you do not have a modem from you ISP, you have a modem/router combo.?
In this the config that works or doesn’t work?
1 Like
Unless your goal is a short range, medium speed Wi-Fi network, I would abandon the usage of the Wi-Fi access point on the pi.
What devices are in your physical network,
Example, my network consists of a modem from my isp it feeds my raspberry pi, the pi feeds a managed switch, the manage switch feeds an access point, a switch, and 2 computers, the access point feeds multiple wifi devices, and the switch feeds multiple TVs and other networked devices.
What does your desired network layout look like in simple terms
You have a combo router/modem that we did not know about or where does the green wire connect to?
What is the make and model of everything but the pi??
This is a tp-link 720n.
There is a wire coming into your house. What does it plug in to?
Rasp AP is not an issue for me.
I just don't understand why I don't get an ip address from ISP.
In this configuration.
Again green wire is coming inside my house.
This is a green wire in the figure.