diff --git a/TODO b/TODO
index bb0be0e1..ea534a96 100644
--- a/TODO
+++ b/TODO
@@ -314,6 +314,16 @@ Wireless daemon
   Priority: Low
   Complexity: C2
 
+- Implement 4-Address mode when acting as a client
+
+  NL80211 allows one to use 4-address mode in STA role.  In this case the
+  EAPoL packets flow over the bridge interface while the rest of the commands
+  are addressed to the actual interface index.  This can be useful to share
+  the WiFi interface over various VM instances.
+
+  Priority: Low
+  Complexity: C2
+
 
 Client
 ======