1 files changed, 4 insertions, 1 deletions
diff --git a/src/peer.h b/src/peer.h
index c058f59..c10406b 100644
--- a/src/peer.h
+++ b/src/peer.h
@@ -21,7 +21,10 @@ struct endpoint {
 		struct sockaddr_in6 addr6;
 	};
 	union {
-		struct in_addr src4;
+		struct {
+			struct in_addr src4;
+			int src_if4; /* Essentially the same as addr6->scope_id */
+		};
 		struct in6_addr src6;
 	};
 };