• NETGEAR R6260
• OpenWrt
• OpenWrt Device Page
• Snapshot

• 2021/04/28: Dropping invalid packets (firewall) causes an Oculus Quest 2 to not load it's own store/home page
• 2021/06/14: Enabling Use broadcast flag causes WAN not to work (Comcast/Xfinity)
• 2021/06/29: Enabling 802.11w Management Frame Protection on 2.4GHz caused a NC200 to not be able to connect
• Stock firmware reports d(149)+p(153)+d(157)+d(161) for 5GHz channels with 153 selected and 11(P)+7(S) for 2.4GHz with 11 selected
• Both Software and Hardware Flow Offload is broken with IPv6 as reported here and here
• https://forum.openwrt.org/t/mt7621-21-02-master-feedback-firmware-image-test-ipv6-offload-and-disabled-flow-control/115697

• ramips/mt7621

• 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/ramips/mt7621/openwrt-ramips-mt7621-netgear_r6260-squashfs-sysupgrade.bin'

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

del %UserProfile%"\.ssh\known_hosts" && ping -t "192.168.1.1"

• LuCI ¹⁾

ssh root@192.168.1.1

sync && passwd

opkg update && opkg install luci && sync

• http://192.168.1.1

• https://my.nextdns.io
• See DNS servers for other DNS servers

• Country Code: US
• Channel: 11
• Width: 40 MHz
• Encryption: WPA2-PSK CCMP AES
• 802.11w Management Frame Protection: Disabled

The Crossroads (2.4GHz)

• Country Code: US
• Channel: 153
• Width: 80 MHz
• Encryption: WPA2-PSK CCMP AES

Highgate (5GHz)

• Steam Support

Steam Remote Play (UDP)

27031

27036

Steam Remote Play (TCP)

27036

27037

• https://github.com/jclehner/nmrpflash

• Reason for the libpcap command: https://github.com/jclehner/nmrpflash/issues/27
• If using an OpenWRT image, use the factory image

sudo ln -sv 'libpcap.so.1' '/usr/lib64/libpcap.so.0.8'

sudo ~/'Downloads/nmrpflash-0.9.16-linux/nmrpflash' -L

sudo ~/'Downloads/nmrpflash-0.9.16-linux/nmrpflash' -i 'enp6s0' -f ~/'Downloads/openwrt-ramips-mt7621-netgear_r6260-squashfs-factory.img'

sudo ~/'Downloads/nmrpflash-0.9.16-linux/nmrpflash' -i 'enp6s0' -f ~/'Downloads/R6260-V1.1.0.84_1.0.1/R6260-V1.1.0.84_1.0.1.img'

https://forum.openwrt.org/t/new-xiaomi-router-ac2100/48101/403

dmesg | grep dma

https://github.com/openwrt/openwrt/blob/master/target/linux/ramips/dts/mt7621_netgear_r6260.dts

https://github.com/openwrt/openwrt/blob/master/target/linux/ramips/dts/mt7621.dtsi

sudo dnf install gcc gcc-c++ git perl-FindBin make patch perl-Thread-Queue ncurses-devel

cd ~ && mkdir -p ~/'Projects' && rm -Rf ~/'Projects/openwrt/src' && git clone --branch 'master' --depth '1' --recurse-submodules 'https://git.openwrt.org/openwrt/openwrt.git' ~/'Projects/openwrt/src' && sync

cd ~/'Projects/openwrt/src' && ~/'Projects/openwrt/src/scripts/feeds' update -a

cd ~/'Projects/openwrt/src' && ~/'Projects/openwrt/src/scripts/feeds' install -a

cd ~/'Projects/openwrt/src' && make menuconfig

nano '/home/espionage724/Projects/openwrt/src/target/linux/ramips/dts/mt7621.dtsi'

gdma = enaled dma = enabled

nano '/home/espionage724/Projects/openwrt/src/target/linux/ramips/dts/mt7621_netgear_r6260.dts' 

&gdma {
    status = "okay";
};

&hsdma {
    status = "okay";
};

menconfig → kernel modules → Other modules → kmod-dma-ralink & kmod-hsdma-mtk

nano '/home/espionage724/Projects/openwrt/src/target/linux/ramips/mt7621/config-5.4' 

CONFIG_MTK_HSDMA=y

• https://github.com/coolsnowwolf/lede
• https://openwrt.org/docs/guide-developer/build-system/install-buildsystem

sudo zypper install --no-recommends asciidoc bash bc binutils bzip2 fastjar flex gawk gcc gcc-c++ gettext-tools git git-core intltool libopenssl-devel libxslt-tools make mercurial ncurses-devel patch perl-ExtUtils-MakeMaker python-devel rsync sdcc unzip util-linux wget zlib-devel

cd ~ && mkdir -p ~/'Projects' && rm -Rf ~/'Projects/lean-openwrt/src' && git clone --branch 'master' --depth '1' --recurse-submodules 'https://github.com/coolsnowwolf/lede.git' ~/'Projects/lean-openwrt/src' && sync

cd ~/'Projects/lean-openwrt/src' && ~/'Projects/lean-openwrt/src/scripts/feeds' update -a

cd ~/'Projects/lean-openwrt/src' && ~/'Projects/lean-openwrt/src/scripts/feeds' install -a

cd ~/'Projects/lean-openwrt/src' && make menuconfig

• Target System: MediaTek Ralink MIPS
• Subtarget: MT7621 based boards
• Target Profile: NETGEAR R6260
• TODO: mt driver instead of mt76

cd ~/'Projects/lean-openwrt/src' && make -j8 download V=s && sync

cd ~/'Projects/lean-openwrt/src' && make -j$(($(nproc) + 1)) V=s && sync

gio open ~/'Projects/lean-openwrt/src/bin/targets/ramips/mt7621'

scp ~/'Projects/lean-openwrt/src/bin/targets/ramips/mt7621/openwrt-ramips-mt7621-netgear_r6260-squashfs-sysupgrade.bin' 'root'@'192.168.1.1':'/tmp'

ssh 'root'@'192.168.1.1'

sysupgrade --force -n -v '/tmp/openwrt-ramips-mt7621-netgear_r6260-squashfs-sysupgrade.bin'

ping '192.168.1.1'

opkg update && opkg install 'luci-i18n-base-en'