• 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

• https://downloads.openwrt.org/
• targets/ramips/mt7621
• ramips-mt7621-netgear_r6260
• OpenSSH-Win64.zip

• Last tested: openwrt-24.10.1-ramips-mt7621-netgear_r6260-squashfs-sysupgrade.bin

ssh root@192.168.1.1

rm -f '/tmp/sysupgrade.img' && sync && sysupgrade --force -n -v 'https://downloads.openwrt.org/releases/24.10.1/targets/ramips/mt7621/openwrt-24.10.1-ramips-mt7621-netgear_r6260-squashfs-sysupgrade.bin'

DEL /Q "%UserProfile%\.ssh\known_hosts" && ping -t "192.168.1.1"

• 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⁾
• TODO: opkg is apk now
• 2025/04/26: luci fails to install on snapshot with apk add

ssh root@192.168.1.1

sync && passwd

opkg update && opkg install 'luci' && sync

• http://192.168.1.1

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

• http://192.168.1.1/cgi-bin/luci/admin/system/crontab

# Restart 5:00 AM
0 5 * * * sleep '70' && touch '/etc/banner' && reboot

• 80/tcp HTTP
• 443/tcp HTTPS

• 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://npcap.com/#download
• Last tested: 2024/09/12: npcap-1.79.exe

• https://github.com/jclehner/nmrpflash/releases
• Last tested: 2024/09/12: nmrpflash-0.9.22-win32.zip

• https://kb.netgear.com/000064951/R6260-Firmware-Version-1-1-0-88
• https://downloads.openwrt.org/snapshots/targets/ramips/mt7621/openwrt-ramips-mt7621-netgear_r6260-squashfs-factory.img
• Last tested: 2024/09/12: R6260-V1.1.0.88.zip and openwrt-ramips-mt7621-netgear_r6260-squashfs-factory.img

"%UserProfile%\Downloads\nmrpflash-0.9.22-win32\nmrpflash.exe" -L

"%UserProfile%\Downloads\nmrpflash-0.9.22-win32\nmrpflash.exe" -v -R "NA" -i "net13" -f "%UserProfile%\Downloads\R6260-V1.1.0.88\R6260-V1.1.0.88_1.0.1.img"

"%UserProfile%\Downloads\nmrpflash-0.9.22-win32\nmrpflash.exe" -v -R "WW" -i "net13" -f "%UserProfile%\Downloads\openwrt-ramips-mt7621-netgear_r6260-squashfs-factory.img"