diff --git a/aos/configuration.h b/aos/configuration.h
index 0e5ef74..06f4db4 100644
--- a/aos/configuration.h
+++ b/aos/configuration.h
@@ -157,6 +157,10 @@
 // provided node.
 bool ChannelIsReadableOnNode(const Channel *channel, const Node *node);
 
+// Returns true if the provided channel is sent on the provided node and gets
+// forwarded to any other nodes.
+bool ChannelIsForwardedFromNode(const Channel *channel, const Node *node);
+
 // Returns true if the message is supposed to be logged on this node.
 bool ChannelMessageIsLoggedOnNode(const Channel *channel, const Node *node);
 bool ChannelMessageIsLoggedOnNode(const Channel *channel,