allow traffic from the same server (RTMP gateway)

kamailio/default.cfg

@@ -450,7 +450,7 @@ route[EXTERNAL_TO_INTERNAL_RELAY]
 route[DOS_PREVENTION]
 {
     # allow request from internal network or from whitelist
-    if (isflagset(FLAG_INTERNALLY_SOURCED) || allow_source_address(TRUSTED_ADR_GROUP)) {
+    if (isflagset(FLAG_INTERNALLY_SOURCED) || allow_source_address(TRUSTED_ADR_GROUP) || is_myself($si)) {
         xlog("L_INFO", "$ci|log|request from trusted IP");
         setflag(FLAG_TRUSTED_SOURCE);
         return;