• NETGEAR R6260
• OpenWrt
• OpenWrt Device Page
• Snapshot

• 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

• ramips/mt7621

• factory.bin
• sysupgrade.bin

• OpenSSH-Win64.zip

"%UserProfile%\Downloads\OpenSSH-Win64\ssh.exe" 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'

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

• https://openwrt.org/docs/guide-user/luci/luci.essentials

"%UserProfile%\Downloads\OpenSSH-Win64\ssh.exe" root@192.168.1.1

sync && passwd

apk update && apk add 'luci' && sync

• http://192.168.1.1

• https://openwrt.org/docs/guide-user/base-system/cron#periodic_reboot
• System → Scheduled Tasks

# Restart 3:00 AM
0 3 * * * sleep '70' && touch '/etc/banner' && reboot

# End

• Quad9 (ECS)

9.9.9.11

149.112.112.11

2620:fe::11

2620:fe::fe:11

HTTP

80

HTTPS

443

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

• Reason for the libpcap command: https://github.com/jclehner/nmrpflash/issues/27
• Use factory for OpenWRT image (not sysupgrade)

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"