Index: kroute.c
===================================================================
RCS file: /cvs/src/usr.sbin/bgpd/kroute.c,v
retrieving revision 1.239
diff -u -p -r1.239 kroute.c
--- kroute.c	1 Oct 2019 08:57:48 -0000	1.239
+++ kroute.c	3 Nov 2020 05:10:37 -0000
@@ -1450,7 +1450,8 @@ kr_redistribute(int type, struct ktable 
 		return;
 
 	/* Consider networks with nexthop loopback as not redistributable. */
-	if (kr->nexthop.s_addr == htonl(INADDR_LOOPBACK))
+	if (kr->nexthop.s_addr == htonl(INADDR_LOOPBACK) &&
+	    (kr->flags & (F_BLACKHOLE|F_REJECT)) == 0)
 		return;
 
 	/*
@@ -1506,7 +1507,8 @@ kr_redistribute6(int type, struct ktable
 	/*
 	 * Consider networks with nexthop loopback as not redistributable.
 	 */
-	if (IN6_IS_ADDR_LOOPBACK(&kr6->nexthop))
+	if (IN6_IS_ADDR_LOOPBACK(&kr6->nexthop) &&
+	    (kr6->flags & (F_BLACKHOLE|F_REJECT)) == 0)
 		return;
 
 	/*