Add missing parentheses in check for IPv4 multicast addresses.

diff --git a/src/route.c b/src/route.c
index 742fbc2..ec01491 100644 (file)
--- a/src/route.c
+++ b/src/route.c
@@ -376,7 +376,7 @@ static void route_ipv4(node_t *source, vpn_packet_t *packet)
        if(!checklength(source, packet, ether_size + ip_size))
                return;
 
-       if(packet->data[30] & 0xf0 == 0xe0 ||
+       if(((packet->data[30] & 0xf0) == 0xe0) ||
                        packet->data[30] == 255 &&
                        packet->data[31] == 255 &&
                        packet->data[32] == 255 &&