Send large packets we cannot handle properly via TCP.

[oweals/tinc.git] / src / net_packet.c

diff --git a/src/net_packet.c b/src/net_packet.c
index 2be599ebc6d3aa7a969a45d881ad858d22f68b6c..aca84683e5aaa5a500758803bdcaf90ba435ac8e 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -355,9 +355,9 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt)
                return;
        }
 
-       if(n->options & OPTION_PMTU_DISCOVERY && !n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
+       if(n->options & OPTION_PMTU_DISCOVERY && inpkt->len > n->minmtu && (inpkt->data[12] | inpkt->data[13])) {
                ifdebug(TRAFFIC) logger(LOG_INFO,
-                               _("No minimum MTU established yet for %s (%s), forwarding via TCP"),
+                               _("Packet for %s (%s) larger than minimum MTU, forwarding via TCP"),
                                n->name, n->hostname);
 
                send_tcppacket(n->nexthop->connection, origpkt);