X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet_socket.c;h=fab11d67f215a6d90c8f950f6ed982e45398f618;hp=767e91e92b30ba92d1af9ded372760ed2647ce72;hb=c544e5e8fe22250b230a46f0340483db5403a6c1;hpb=e355088535ee9ebb12a4db0043bf6a9743085b28

diff --git a/src/net_socket.c b/src/net_socket.c
index 767e91e9..fab11d67 100644
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -1,7 +1,7 @@
 /*
     net_socket.c -- Handle various kinds of sockets.
     Copyright (C) 1998-2005 Ivo Timmermans,
-                  2000-2014 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2016 Guus Sliepen <guus@tinc-vpn.org>
                   2006      Scott Lamb <slamb@slamb.org>
                   2009      Florian Forster <octo@verplant.org>
 
@@ -82,6 +82,11 @@ static void configure_tcp(connection_t *c) {
 	option = IPTOS_LOWDELAY;
 	setsockopt(c->socket, SOL_IP, IP_TOS, (void *)&option, sizeof option);
 #endif
+
+#if defined(IPPROTO_IPV6) && defined(IPV6_TCLASS) && defined(IPTOS_LOWDELAY)
+	option = IPTOS_LOWDELAY;
+	setsockopt(c->socket, IPPROTO_IPV6, IPV6_TCLASS, (void *)&option, sizeof option);
+#endif
 }
 
 static bool bind_to_interface(int sd) {