+#ifdef IP_MTU_DISCOVER
+ mtu_disc = uaudio_get("rtp-mtu-discovery", "default");
+ do {
+ if(!strcmp(mtu_disc, "yes")) opt = IP_PMTUDISC_DO;
+ else if(!strcmp(mtu_disc, "no")) opt = IP_PMTUDISC_DONT;
+ else break;
+ if(setsockopt(rtp_fd4, IPPROTO_IP, IP_MTU_DISCOVER, &opt, sizeof opt))
+ disorder_fatal(errno, "error setting MTU discovery");
+ if(sres->sa->sa_family == AF_INET &&
+ setsockopt(rtp_fd, IPPROTO_IP, IP_MTU_DISCOVER, &opt, sizeof opt))
+ disorder_fatal(errno, "error setting MTU discovery");
+ } while (0);
+#endif