diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 4cfea95..580e786 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -584,6 +584,9 @@
 	struct dn_dev *dn = (struct dn_dev *)dev->dn_ptr;
 	unsigned char padlen = 0;
 
+	if (dev->nd_net != &init_net)
+		goto dump_it;
+
 	if (dn == NULL)
 		goto dump_it;