I am glad OpenWRT exists. Very grateful to many who support this endeavor.
I have a BPI-R3 Mini and a BPI-R4. WiFi works properly on the BPI-R3 when connecting to my local LAN. On BPI-R4, I do not get a DHCP address connected to the WiFi radio (the 5G radio).
BPI-R4 information
root@OpenWrt:~# ubus call system board
{
"kernel": "6.6.73",
"hostname": "OpenWrt",
"system": "ARMv8 Processor rev 0",
"model": "Bananapi BPI-R4",
"board_name": "bananapi,bpi-r4",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "24.10.0-rc7",
"revision": "r28417-daef29c75d",
"target": "mediatek/filogic",
"description": "OpenWrt 24.10.0-rc7 r28417-daef29c75d",
"builddate": "1738018409"
}
}
DHCP Configuration
root@OpenWrt:~# cat /etc/config/dhcp
config dnsmasq
option domainneeded '1'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option cachesize '1000'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
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'
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'
I can post the firewall configuration in its entirety, if needed. I do see this part...
# 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
My test device is an iOS iPhone 12, which allows tcpdump on pktap interface.
Here is a screenshot of the Wireshark with DHCP packets captured over-the-air between the BPI-R4 and iPhone.
I should have done a bit more research. The following configuration fixed it.
