diff --git a/etc/sysctl.d/40-ipv6.conf b/etc/sysctl.d/40-ipv6.conf
index f8dc5d34..91a93622 100644
--- a/etc/sysctl.d/40-ipv6.conf
+++ b/etc/sysctl.d/40-ipv6.conf
@@ -1,4 +1,5 @@
 # Enable IPv6 Privacy Extensions
+# 2 for enabling and preferring, 1 to only enable, 0 to disable
 net.ipv6.conf.all.use_tempaddr = 2
 net.ipv6.conf.default.use_tempaddr = 2
 #net.ipv6.conf.eth0.use_tempaddr = 2
diff --git a/etc/sysctl.d/60-mikaela.conf b/etc/sysctl.d/60-mikaela.conf
index 0278d40c..106a4e5e 100644
--- a/etc/sysctl.d/60-mikaela.conf
+++ b/etc/sysctl.d/60-mikaela.conf
@@ -1,18 +1,23 @@
-# Kernel settings that I prefer to have. ~~ Mikaela
+## Kernel settings that I prefer to have. ~~ Mikaela
 
-# Core files appear with filename <binary>-<PID>-<hostname>.core
+## Core files appear with filename <binary>-<PID>-<hostname>.core
 kernel.core_pattern = %e-%p-%h.core
 
-# When binding to IPv6, only bind to IPv6. Avoids dotted-decimals
+## When binding to IPv6, only bind to IPv6. Avoids dotted-decimals
 net.ipv6.bindv6only=1
 
 ## Enable IPv6 privacy extensions and prefer them to the EUI-64 address
+## This should be 2 for clients to use and prefer private extensions address
+## and 0 for servers or devices that don't move around.
 net.ipv6.conf.default.use_tempaddr=2
 net.ipv6.conf.all.use_tempaddr=2
-# In case of systemd-networkd (which won't work with the above):
+## In case of systemd-networkd (which won't work with the above) and
+## interfaces that are up when the option is changed:
 #net.ipv6.conf.eth0.use_tempaddr=2
+#net.ipv6.conf.enp4s0f1.use_tempaddr=2
 #net.ipv6.conf.wlan0.use_tempaddr=2
+#net.ipv6.conf.wlp3s0.use_tempaddr=2
 
-# Enable the Magic SysRq key
-# https://en.wikipedia.org/wiki/Magic_SysRq_key
+## Enable the Magic SysRq key
+## https://en.wikipedia.org/wiki/Magic_SysRq_key
 kernel.sysrq = 1