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Why don't you send WOL directly over the internet? (You'll need to set up a permanent ARP record on the router.) Or login into the router and send WoL from the
by M95D 1y ago
Why don't you send WOL directly over the internet? (You'll need to set up a permanent ARP record on the router.)
Or login into the router and send WoL from there?
Or have Raspberry always on with ssh?
Or set a power-on timer in BIOS/UEFI once a day and a shutdown/sleep in cron? (This is also a good failsafe if WoL doesn't work.)
- t_mahmood 1y ago> Why don't you send WOL directly over the internet? (You'll need to set up a permanent ARP record on the router.) Hm, so never tried something like that before actually, I think for OpenWrt I need to install arp packages. I do not have public IP any more though, was getting hammered by bot network and found Tailscale to do what I need. > Or login into the router and send WoL from there? Restricted outside access to the router management panel, only port forwarded to the desktop. > Or have Raspberry always on with ssh? I do not have one, which is why used a mobile, thought to be next best thing. As, power outages happen regularly, I need something that would be able to keep on running. > Or set a power-on timer in BIOS/UEFI once a day and a shutdown/sleep in cron? (This is also a good failsafe if WoL doesn't work.) That's easily workable for my setup, actually! Thank you for giving me the ideas!
- M95D 1y ago>> Why don't you send WOL directly over the internet? (You'll need to set up a permanent ARP record on the router.) > Hm, so never tried something like that before actually, I think for OpenWrt I need to install arp packages. No, you don't. Put this in /etc/firewall.user or /etc/rc.local (you can do it from UI) and forward a UDP port to 192.168.0.254 or whaterver subnet you're using: ip neigh add 192.168.0.254 lladdr ff:ff:ff:ff:ff:ff nud permanent dev br-lan extern_learn The incoming packet will be broadcasted (ff:ff...) on the br-lan interface. 192.168.0.254 doesn't need to exist - the sleeping computer doesn't care.
- t_mahmood 1y agoThank you for the explanation! The version in the OpenWrt didn't support the full command. Had to update to `ip-full`. After the command was successful, I can see the entry in the `ip neigh` table. Now digging around
- M95D 1y agoPS: Correction! /etc/rc.local isn't OK. The ARP record needs to be reloaded if br-lan interface is restarted, such as when changing other network settings in WebUI. So only /etc/firewall.user will do.
- synergy20 1y agoI don't think BIOS/UEFI can do power-on timer unless it's server-class hardware? Have not looked into PC BIOS/UEFI for a while. For failsafe, KVM might be the ultimate solution in case boot got stuck.
- M95D 1y agoI don't know about UEFI - I don't have any UEFI system - but my Gigabyte 880GA motherboard can certainly do RTC power-on from BIOS settings and it's far from being a server motherboard.