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OpenWRT on Netgear Nighthawk R7800

About

Processor: Dual Core ARMv7 Processor
Layout: Qualcomm Atheros IPQ8065 SoC
WiFi: Qualcomm Atheros QCA9984, 2.4GHz 802.11bgn, 5GHz a/n/ac
RAM: 512 MB
Flash: 128 MB
Ports: 2x USB 3.0, 1x eSATA

Compile

git clone https://www.github.com/openwrt/openwrt
cd openwrt
./scripts/feeds update -a
./scripts/feeds install -a
make menuconfig

# Target System -> `Qualcomm Atheros IPQ806X`
# Target Profile -> `Netgear Nighthawk X4S R7800`
# LuCI -> Collections -> `luci`, `luci-ssl`

make -j16
du -hs bin/targets/ipq806x/generic/*

Flash via TFTP

(Using extra/tftp-hpa on Archlinux)

  1. Turn off the power, push and hold the reset button with a pin
  2. Turn on the power and wait till power led starts flashing white (after it first flashes orange for a while)
  3. Release the pin and tftp the factory img in binary mode. The power led will stop flashing if you succeeded in transferring the image, and the router reboots rather quickly with the new firmware.

tftp:

tftp 192.168.1.1
mode binary
put *-factory.img
quit

Atheros WDS (AP+Repeater)

based on: OpenWRT Atheros WDS

Router (Access Point)

  • Open /etc/config/wireless and add option wds '1' to each config wifi-iface entry.

Repeater (STAtion)

  • Open /etc/config/dhcp and disable DHCP:

  • Add option ignore '1' to the config dhcp 'lan' section

  • Replace option dhcpv6 'server' by option dhcpv6 'disabled'

  • Open /etc/config/network and set IP Address:

  • Set IP-Address: option ipaddr '10.4.4.2' (Repeater IP)

  • Set Gateway: option gateway '10.4.4.1' (Router IP)

  • Enable STP: option stp '1'

  • Open /etc/config/wireless and setup WiFi's:

  • Duplicate all Router WiFi entries twice

  • On the first, replace option mode 'ap' by option mode 'sta'

  • On the second, remove option wds '1'

  • Make sure the devices are enabled

  • Remove option disabled '1' from config wifi-device section

  • Open /etc/config/dhcp and setup DHCP forwarding:

  • Add list server '10.4.4.1' to the config dnsmasq section (Router IP)

LAN-Only WiFi

export PASS="CHANGEIT"
export NAME="LAN_ONLY_WIFI"
export DEVICE="radio1"

uci set network.$NAME=interface
uci set network.$NAME.type='bridge'
uci set network.$NAME.proto='static'
uci set network.$NAME.ipaddr='10.4.5.1'
uci set network.$NAME.netmask='255.255.255.0'

uci set dhcp.$NAME=dhcp
uci set dhcp.$NAME.start='100'
uci set dhcp.$NAME.leasetime='4h'
uci set dhcp.$NAME.limit='250'
uci set dhcp.$NAME.interface="$NAME"

uci add firewall zone
uci set firewall.@zone[-1].name="$NAME"
uci set firewall.@zone[-1].input='ACCEPT'
uci set firewall.@zone[-1].output='ACCEPT'
uci set firewall.@zone[-1].forward='ACCEPT'
uci set firewall.@zone[-1].network="$NAME"

uci add firewall forwarding
uci set firewall.@forwarding[-1].dest='lan'
uci set firewall.@forwarding[-1].src="$NAME"

uci add firewall forwarding
uci set firewall.@forwarding[-1].dest="$NAME"
uci set firewall.@forwarding[-1].src='lan'

uci add wireless wifi-iface
uci set wireless.@wifi-iface[-1].ssid="$NAME"
uci set wireless.@wifi-iface[-1].device="$DEVICE"
uci set wireless.@wifi-iface[-1].mode='ap'
uci set wireless.@wifi-iface[-1].disabled='1'
uci set wireless.@wifi-iface[-1].encryption='psk2'
uci set wireless.@wifi-iface[-1].key="$PASS"
uci set wireless.@wifi-iface[-1].network="$NAME"

uci commit

WAN-Only WiFi

export PASS="CHANGEIT"
export NAME="WAN_ONLY_WIFI"
export DEVICE="radio1"

uci set network.wan.type='bridge'
uci set network.wan6.type='bridge'

uci add wireless wifi-iface
uci set wireless.@wifi-iface[-1].ssid="$NAME"
uci set wireless.@wifi-iface[-1].device="$DEVICE"
uci set wireless.@wifi-iface[-1].mode='ap'
uci set wireless.@wifi-iface[-1].disabled='1'
uci set wireless.@wifi-iface[-1].encryption='psk2'
uci set wireless.@wifi-iface[-1].key="$PASS"
uci set wireless.@wifi-iface[-1].network='wan wan6'
uci set wireless.@wifi-iface[-1].isolate='1'

uci commit

Menuconfig for NAS Usage

Base

  • Target System -> Qualcomm Atheros IPQ806X
  • Target Profile -> Netgear Nighthawk X4S R7800
  • LuCI -> Collections -> luci, luci-ssl
  • LuCI -> Applications -> luci-app-minidlna, luci-app-radicale2, luci-app-samba4

Kernel

  • Kernel Modules -> Cryptographic API -> kmod-crypto-sha256, kmod-crypto-sha512, kmod-crypto-xts, kmod-crypto-rng
  • Kernel Modules -> Filesystems -> kmod-fs-cifs, kmod-fs-ext4, kmod-fs-vfat, kmod-fs-ntfs
  • Kernel Modules -> Sound Support -> kmod-usb-audio
  • Kernel Modules -> USB Support -> kmod-usb-storage-extras
  • Kernel Modules -> Block Devices -> kmod-dm, kmod-md-mod, kmod-md-raid1, kmod-loop

Utils

  • Utilities -> Encryption -> cryptsetup
  • Utilities -> Editors -> vim-full
  • Utilities -> Disc -> cfdisk, mdadm
  • Utilities -> Filesystem -> dosfstools, e2fsprogs, ncdu
  • Utilities -> Shells -> bash
  • Utilities -> Terminal -> screen
  • Multimedia -> youtube-dl
  • Sound -> forked-daapd, shairport-sync-mini
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