From 75f10a572512b119c339353fa696b362bfab49fa Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Fri, 3 Nov 2023 18:06:19 +0100
Subject: [PATCH] gnrc/ipv6/nib: don't do multicast neighbor solicitation on
 6LoWPAN

---
 sys/net/gnrc/network_layer/ipv6/nib/nib.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/net/gnrc/network_layer/ipv6/nib/nib.c b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
index 03997aeed2..5fe55a0529 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/nib.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
@@ -1397,7 +1397,8 @@ static bool _resolve_addr(const ipv6_addr_t *dst, gnrc_netif_t *netif,
         return false;
     }
 
-    if (IS_ACTIVE(CONFIG_GNRC_IPV6_NIB_ARSM)) {
+    /* don't do multicast address resolution on 6lo */
+    if (!gnrc_netif_is_6ln(netif)) {
         _probe_nbr(entry, reset);
     }