diff --git a/src/main/java/ru/serega6531/packmate/PcapWorker.java b/src/main/java/ru/serega6531/packmate/PcapWorker.java
index fc36f32..1adf3a5 100644
--- a/src/main/java/ru/serega6531/packmate/PcapWorker.java
+++ b/src/main/java/ru/serega6531/packmate/PcapWorker.java
@@ -45,7 +45,8 @@ public class PcapWorker implements PacketListener {
 
     private long packetIdCounter = 0;  // оно однопоточное, так что пусть будет без atomic
 
-    private final ListMultimap<UnfinishedStream, ru.serega6531.packmate.model.Packet> unfinishedStreams = ArrayListMultimap.create();
+    private final ListMultimap<UnfinishedStream, ru.serega6531.packmate.model.Packet> unfinishedTcpStreams = ArrayListMultimap.create();
+    private final ListMultimap<UnfinishedStream, ru.serega6531.packmate.model.Packet> unfinishedUdpStreams = ArrayListMultimap.create();
 
     // в следующих мапах в значениях находится srcIp соответствующего пакета
     private final SetMultimap<UnfinishedStream, ImmutablePair<Inet4Address, Integer>> fins = HashMultimap.create();
@@ -142,7 +143,7 @@ public class PcapWorker implements PacketListener {
                 if (log.isDebugEnabled()) {
                     log.debug("tcp {} {}:{} -> {}:{}, номер пакета {}",
                             serviceOptional.get(), sourceIpString, sourcePort, destIpString, destPort,
-                            unfinishedStreams.get(stream).size());
+                            unfinishedTcpStreams.get(stream).size());
                 }
 
                 checkTcpTermination(ack, fin, rst, new ImmutablePair<>(sourceIp, sourcePort), new ImmutablePair<>(destIp, destPort), stream);
@@ -179,7 +180,7 @@ public class PcapWorker implements PacketListener {
                 if (log.isDebugEnabled()) {
                     log.debug("udp {} {}:{} -> {}:{}, номер пакета {}",
                             serviceOptional.get(), sourceIpString, sourcePort, destIpString, destPort,
-                            unfinishedStreams.get(stream).size());
+                            unfinishedUdpStreams.get(stream).size());
                 }
             });
         } else { // сервис не найден
@@ -203,11 +204,14 @@ public class PcapWorker implements PacketListener {
                 .content(content)
                 .build();
 
-        if (!unfinishedStreams.containsKey(stream)) {
+        final ListMultimap<UnfinishedStream, ru.serega6531.packmate.model.Packet> streams =
+                (protocol == Protocol.TCP) ? this.unfinishedTcpStreams : this.unfinishedUdpStreams;
+
+        if (!streams.containsKey(stream)) {
             log.debug("Начат новый стрим");
         }
 
-        unfinishedStreams.put(stream, packet);
+        streams.put(stream, packet);
         return stream;
     }
 
@@ -229,9 +233,9 @@ public class PcapWorker implements PacketListener {
 
         // если соединение разорвано с помощью rst или закрыто с помощью fin-ack-fin-ack
         if (rst || (acks.containsEntry(stream, sourceIpAndPort) && acks.containsEntry(stream, destIpAndPort))) {
-            streamService.saveNewStream(stream, unfinishedStreams.get(stream));
+            streamService.saveNewStream(stream, unfinishedTcpStreams.get(stream));
 
-            unfinishedStreams.removeAll(stream);
+            unfinishedTcpStreams.removeAll(stream);
             fins.removeAll(stream);
             acks.removeAll(stream);
         }
@@ -243,13 +247,15 @@ public class PcapWorker implements PacketListener {
             int streamsClosed = 0;
 
             final long time = System.currentTimeMillis();
+            final ListMultimap<UnfinishedStream, ru.serega6531.packmate.model.Packet> streams =
+                    (protocol == Protocol.TCP) ? this.unfinishedTcpStreams : this.unfinishedUdpStreams;
+
             final Map<UnfinishedStream, List<ru.serega6531.packmate.model.Packet>> oldStreams =
-                    Multimaps.asMap(unfinishedStreams).entrySet().stream()
+                    Multimaps.asMap(streams).entrySet().stream()
                             .filter(entry -> {
                                 final List<ru.serega6531.packmate.model.Packet> packets = entry.getValue();
                                 return time - packets.get(packets.size() - 1).getTimestamp() > timeoutMillis;
                             })
-                            .filter(entry -> entry.getKey().getProtocol() == protocol)
                             .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
 
             for (Map.Entry<UnfinishedStream, List<ru.serega6531.packmate.model.Packet>> entry : oldStreams.entrySet()) {
@@ -265,7 +271,7 @@ public class PcapWorker implements PacketListener {
                     acks.removeAll(stream);
                 }
 
-                unfinishedStreams.removeAll(stream);
+                streams.removeAll(stream);
             }
 
             return streamsClosed;
diff --git a/src/main/java/ru/serega6531/packmate/service/StreamService.java b/src/main/java/ru/serega6531/packmate/service/StreamService.java
index b68e603..3c188bb 100644
--- a/src/main/java/ru/serega6531/packmate/service/StreamService.java
+++ b/src/main/java/ru/serega6531/packmate/service/StreamService.java
@@ -70,6 +70,15 @@ public class StreamService {
         }
         CtfService service = serviceOptional.get();
 
+        if (ignoreEmptyPackets) {
+            packets.removeIf(packet -> packet.getContent().length == 0);
+
+            if (packets.isEmpty()) {
+                log.debug("Стрим состоит только из пустых пакетов и не будет сохранен");
+                return false;
+            }
+        }
+
         Optional<Packet> firstIncoming = packets.stream()
                 .filter(Packet::isIncoming)
                 .findFirst();
@@ -81,15 +90,6 @@ public class StreamService {
         stream.setEndTimestamp(packets.get(packets.size() - 1).getTimestamp());
         stream.setService(service.getPort());
 
-        if (ignoreEmptyPackets) {
-            packets.removeIf(packet -> packet.getContent().length == 0);
-
-            if (packets.isEmpty()) {
-                log.debug("Стрим состоит только из пустых пакетов и не будет сохранен");
-                return false;
-            }
-        }
-
         new StreamOptimizer(service, packets).optimizeStream();
         processUserAgent(packets, stream);