• Linksys EA6350
• OpenWrt
• OpenWrt Device Page
• Snapshot

• 2021/07/02: When using Oculus Air Link and a speed test at 60Mbps download, CPU 0 is around 75% load and the other 3 are 1-5%. Packet Steering is disabled by-default and doesn't seem to do anything when enabled. irqbalance spreads the load quite nicely and drops CPU 0 in the same situation to around 20%. Presumably, if ISP speeds increase beyond 60Mbps, irqbalance will be required.
• 2021/08: For 5GHz, the wireless channels chosen needs to do 30 dBm on both 2.4GHz and 5GHz. For 5GHz, 149 works fine.

• 2022: OpenWRT snapshot builds were disabled at some point, see https://github.com/openwrt/openwrt/pull/11405

• factory.bin
• sysupgrade.bin

• This downloads the latest sysupgrade.bin and installs it

ssh 'root'@'192.168.1.1'

rm -f '/tmp/sysupgrade.img' && sync && sysupgrade --force -n -v 'https://downloads.openwrt.org/snapshots/targets/ipq40xx/generic/openwrt-ipq40xx-generic-linksys_ea6350v3-squashfs-sysupgrade.bin'

rm -Rf ~/'.ssh' && ping '192.168.1.1'

• LuCI ¹⁾

ssh 'root'@'192.168.1.1'

sync && passwd

opkg update && opkg install luci irqbalance nano && sync

• Wireless Access Point / Dumb Access Point / Dumb AP

• OpenWrt as router device

• Sets router IP to 192.168.1.2
• Sets router Gateway and DNS to 192.168.1.1
• Disables DHCPv6

uci set network.lan.ipaddr=192.168.1.2 && uci set network.lan.gateway=192.168.1.1 && uci set network.lan.dns=192.168.1.1 && uci set dhcp.lan.dhcpv6=disabled && uci set dhcp.lan.ra=disabled && uci commit && service network restart && sync

• Disables dnsmasq, firewall, and odhcpd services

/etc/init.d/dnsmasq disable && /etc/init.d/dnsmasq stop && /etc/init.d/firewall disable && /etc/init.d/firewall stop && /etc/init.d/odhcpd disable && /etc/init.d/odhcpd stop && /etc/init.d/network reload && sync

• https://openwrt.org/docs/guide-user/services/irqbalance

nano '/etc/config/irqbalance'

• http://192.168.1.2

• https://forum.openwrt.org/t/ipq40xx-ea6350-v3-as-wap-wifi-to-lan-latency/51623/8
• This is seemingly required in order to keep latency at a consistent 0.2ms on Ethernet

• http://192.168.1.2/cgi-bin/luci/admin/system/startup

echo 'performance' | tee '/sys/devices/system/cpu/cpufreq/policy0/scaling_governor' > '/dev/null'

echo 'performance' | tee '/sys/devices/system/cpu/cpufreq/policy0/scaling_governor' > '/dev/null'

cat '/sys/devices/system/cpu/cpufreq/policy0/scaling_governor'

cat '/sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq'

• https://www.albertogonzalez.net/how-to-reboot-nightly-your-openwrt-router/
• https://openwrt.org/docs/guide-user/base-system/cron#periodic_reboot

• http://192.168.1.2/cgi-bin/luci/admin/system/crontab

# Restart 3:32 AM
32 3 * * * sleep 70 && touch /etc/banner && reboot

• https://1.1.1.1/dns/
• See DNS servers for other DNS servers

2606:4700:4700::1111

2606:4700:4700::1001

1.1.1.1

1.0.0.1

• Country Code: US
• Channel: 6
• Width: 20 MHz
• Encryption: WPA2-PSK CCMP AES

The Cathedral Rooftop (2.4GHz)

• Country Code: US
• Channel: 149
• Width: 80 MHz
• Encryption: WPA2-PSK CCMP AES

The Beacon (5GHz)

• See port_forwards

• https://openwrt.org/toh/linksys/ea8300#revert_to_stock
• OpenWRT → Linksys

• https://www.linksys.com/support-article?articleNum=148481
• 3.1.10.191322 from 2018 is the latest as of 2022/12/09

ssh 'root'@'192.168.1.1'

wget 'https://downloads.linksys.com/downloads/firmware/FW_EA6350v3_3.1.10.191322_prod.img'

• 11 = kernel
• 13 = alt_kernel
• Flash operations should be done on the kernel not mentioned in the following command ²⁾

cat '/sys/devices/virtual/ubi/ubi0/mtd_num'

mtd erase 'kernel'

mtd erase 'alt_kernel'

mtd write 'FW_EA6350v3_3.1.10.191322_prod.img' 'kernel'

mtd write 'FW_EA6350v3_3.1.10.191322_prod.img' 'alt_kernel'

• 1 = kernel
• 2 = alt_kernel

fw_setenv 'boot_part' '1'

fw_setenv 'boot_part' '2'

sync && reboot