From ebbef901c1410a9244ce107fc68a0b51d90fc2fa Mon Sep 17 00:00:00 2001 From: Colin Date: Wed, 27 Sep 2023 01:32:50 +0000 Subject: [PATCH] wowlan: document VPN shortcomings --- modules/wowlan.nix | 3 +++ 1 file changed, 3 insertions(+) diff --git a/modules/wowlan.nix b/modules/wowlan.nix index dd77ec17..a6f61b12 100644 --- a/modules/wowlan.nix +++ b/modules/wowlan.nix @@ -16,6 +16,9 @@ # - WiFi doesn't respond to arp queries, so the sender might not actually know how to route # the packet to WiFi device at all. # run `arp -s ` on the sender to hardcode an arp association. +# - packet matching happens below the OS, so it's not generic over virtual network devices like tunnels. +# Wake On Lan with a VPN effectively requires that you wake on *every* packet routed via that VPN +# since the meaning within any packet isn't obvious to the chipset. { config, lib, pkgs, ... }: let