Add comment to retract_route -- smart people are being confused.

9f152653 · Juliusz Chroboczek · ba2cb98a · 9f152653
Commit 9f152653 authored Mar 09, 2013 by Juliusz Chroboczek
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route.c route.c +2 -0

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--- a/route.c
+++ b/route.c
@@ -502,6 +502,8 @@ change_route_metric(struct babel_route *route,
 static void
 retract_route(struct babel_route *route)
 {
+    /* We cannot simply remove the route from the kernel, as that might
+       cause a routing loop -- see RFC 6126 Sections 2.8 and 3.5.5. */
    change_route_metric(route, INFINITY, INFINITY, 0);
 }