If PMTUDiscovery is not set, do not forward packets via TCP unnecessarily.

diff --git a/src/net_packet.c b/src/net_packet.c
index 1730023..de6ae55 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -342,7 +342,7 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt)
                return;
        }
 
-       if(!n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
+       if(n->options & OPTION_PMTU_DISCOVERY && !n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
                ifdebug(TRAFFIC) logger(LOG_INFO,
                                _("No minimum MTU established yet for %s (%s), forwarding via TCP"),
                                n->name, n->hostname);