diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index 19c5f8d53474..0576aa2ddf66 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -297,8 +297,16 @@ nd6_ra_input(struct mbuf *m, int off, int icmp6len)
 	}
 	if (nd_ra->nd_ra_retransmit)
 		ndi->retrans = ntohl(nd_ra->nd_ra_retransmit);
-	if (nd_ra->nd_ra_curhoplimit)
-		ndi->chlim = nd_ra->nd_ra_curhoplimit;
+	if (nd_ra->nd_ra_curhoplimit) {
+		if (ndi->chlim < nd_ra->nd_ra_curhoplimit)
+			ndi->chlim = nd_ra->nd_ra_curhoplimit;
+		else if (ndi->chlim != nd_ra->nd_ra_curhoplimit) {
+			log(LOG_ERR, "RA with a lower CurHopLimit sent from "
+			    "%s on %s (current = %d, received = %d). "
+			    "Ignored.\n", ip6_sprintf(ip6bufs, &ip6->ip6_src),
+			    if_name(ifp), ndi->chlim, nd_ra->nd_ra_curhoplimit);
+		}
+	}
 	dr = defrtrlist_update(&dr0);
     }