fix the TOS socket option for ipv6

daemon/call.c

@@ -589,7 +589,7 @@ static int get_port6(struct streamrelay *r, u_int16_t p) {
 
 	nonblock(fd);
 	reuseaddr(fd);
-	setsockopt(fd, IPPROTO_IP, IP_TOS, &r->up->up->call->callmaster->tos, sizeof(r->up->up->call->callmaster->tos));
+	setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &r->up->up->call->callmaster->tos, sizeof(r->up->up->call->callmaster->tos));
 	ipv6only(fd, 0);
 
 	ZERO(sin);