diff --git a/src/game/ObjectMgr.cpp b/src/game/ObjectMgr.cpp
index 2322d3f..9d29291 100644
--- a/src/game/ObjectMgr.cpp
+++ b/src/game/ObjectMgr.cpp
@@ -863,10 +863,10 @@ void ObjectMgr::LoadCreatureAddons(SQLStorage& creatureaddons, char const* entry
         if (!sEmotesStore.LookupEntry(addon->emote))
             sLog.outErrorDb("Creature (%s %u) have invalid emote (%u) defined in `%s`.", entryName, addon->guidOrEntry, addon->emote, creatureaddons.GetTableName());
 
-        if (addon->move_flags & (MONSTER_MOVE_UNK1|MONSTER_MOVE_UNK4))
+        if (addon->move_flags & (MONSTER_MOVE_JUMP|MONSTER_MOVE_UNK4))
         {
-            sLog.outErrorDb("Creature (%s %u) movement flags mask defined in `%s` include forbidden  flags (" I32FMT ") that can crash client, cleanup at load.", entryName, addon->guidOrEntry, creatureaddons.GetTableName(), (MONSTER_MOVE_UNK1|MONSTER_MOVE_UNK4));
-            const_cast<CreatureDataAddon*>(addon)->move_flags &= ~(MONSTER_MOVE_UNK1|MONSTER_MOVE_UNK4);
+            sLog.outErrorDb("Creature (%s %u) movement flags mask defined in `%s` include forbidden  flags (" I32FMT ") that can crash client, cleanup at load.", entryName, addon->guidOrEntry, creatureaddons.GetTableName(), (MONSTER_MOVE_JUMP|MONSTER_MOVE_UNK4));
+            const_cast<CreatureDataAddon*>(addon)->move_flags &= ~(MONSTER_MOVE_JUMP|MONSTER_MOVE_UNK4);
         }
 
         ConvertCreatureAddonAuras(const_cast<CreatureDataAddon*>(addon), creatureaddons.GetTableName(), entryName);
diff --git a/src/game/Unit.cpp b/src/game/Unit.cpp
index cdfdef2..ae48e4e 100644
--- a/src/game/Unit.cpp
+++ b/src/game/Unit.cpp
@@ -288,6 +288,48 @@ void Unit::SendMonsterMove(float NewPosX, float NewPosY, float NewPosZ, uint8 ty
         moveTime *= 1.05f;
 
     data << uint32(moveTime);                               // Time in between points
+
+    if(flags & MONSTER_MOVE_JUMP)
+    {
+        data << float(0);
+        data << uint32(0);
+    }
+
+    data << uint32(1);                                      // 1 single waypoint
+    data << NewPosX << NewPosY << NewPosZ;                  // the single waypoint Point B
+
+    if(player)
+        player->GetSession()->SendPacket(&data);
+    else
+        SendMessageToSet( &data, true );
+}
+
+void Unit::SendMonsterMoveJump(float NewPosX, float NewPosY, float NewPosZ, float vert_speed, uint32 flags, uint32 Time, Player* player)
+{
+    float moveTime = Time;
+    flags |= MONSTER_MOVE_JUMP;
+
+    WorldPacket data( SMSG_MONSTER_MOVE, (49 + GetPackGUID().size()) );
+    data.append(GetPackGUID());
+    data << uint8(0);                                       // new in 3.1
+    data << GetPositionX() << GetPositionY() << GetPositionZ();
+    data << uint32(getMSTime());
+
+    data << uint8(0);                                    // unknown
+
+    data << uint32(flags);
+
+    if(flags & MONSTER_MOVE_WALK)
+        moveTime *= 1.05f;
+
+    data << uint32(moveTime);                               // Time in between points
+
+    if(flags & MONSTER_MOVE_JUMP)
+    {
+        data << float(vert_speed);
+        data << uint32(0);
+    }
+
     data << uint32(1);                                      // 1 single waypoint
     data << NewPosX << NewPosY << NewPosZ;                  // the single waypoint Point B
 
@@ -12986,7 +13028,7 @@ void Unit::SetPvP( bool state )
                 totem->SetPvP(state);
 }
 
-void Unit::KnockBackFrom(Unit* target, float horizintalSpeed, float verticalSpeed)
+void Unit::KnockBackFrom(Unit* target, float horizontalSpeed, float verticalSpeed)
 {
     float angle = this == target ? GetOrientation() + M_PI : target->GetAngle(this);
     float vsin = sin(angle);
@@ -13000,14 +13042,17 @@ void Unit::KnockBackFrom(Unit* target, float horizintalSpeed, float verticalSpee
         data << uint32(0);                                  // Sequence
         data << float(vcos);                                // x direction
         data << float(vsin);                                // y direction
-        data << float(horizintalSpeed);                     // Horizontal speed
+        data << float(horizontalSpeed);                     // Horizontal speed
         data << float(-verticalSpeed);                      // Z Movement speed (vertical)
         ((Player*)this)->GetSession()->SendPacket(&data);
     }
     else
     {
-        float dis = horizintalSpeed;
+        float g = 19.23f;// seems that physic constant g(earth's gravity) in world of warcraft is about 2 times larger than real
+        float dh = verticalSpeed*verticalSpeed / (2*g); // maximum parabola height
+        float time = sqrtf(dh/(0.124976 * verticalSpeed));  //full move time in seconds     // should be  time = 2*Vert_speed/g, but..
 
+        float dis = time * horizontalSpeed;
         float ox, oy, oz;
         GetPosition(ox, oy, oz);
 
@@ -13024,9 +13069,8 @@ void Unit::KnockBackFrom(Unit* target, float horizintalSpeed, float verticalSpee
             UpdateGroundPositionZ(fx, fy, fz);
         }
 
-        //FIXME: this mostly hack, must exist some packet for proper creature move at client side
-        //       with CreatureRelocation at server side
-        NearTeleportTo(fx, fy, fz, GetOrientation(), this == target);
+        GetMap()->CreatureRelocation((Creature*)this, fx, fy, fz, GetOrientation());//it's a hack, need motion master support
+        SendMonsterMoveJump(fx, fy, fz, verticalSpeed, MONSTER_MOVE_WALK, uint32(time * 1000.0f));
     }
 }
 
diff --git a/src/game/Unit.h b/src/game/Unit.h
index 51b19be..aeb38ba 100644
--- a/src/game/Unit.h
+++ b/src/game/Unit.h
@@ -586,7 +586,7 @@ enum MonsterMovementFlags
     MONSTER_MOVE_TELEPORT       = 0x00000100,
     MONSTER_MOVE_TELEPORT2      = 0x00000200,
     MONSTER_MOVE_LEVITATING     = 0x00000400,
-    MONSTER_MOVE_UNK1           = 0x00000800,               // float+uint32
+    MONSTER_MOVE_JUMP           = 0x00000800,               // float+uint32
     MONSTER_MOVE_WALK           = 0x00001000,               // run2?
     MONSTER_MOVE_SPLINE         = 0x00002000,               // spline n*(float x,y,z)
     // 0x4000, 0x8000, 0x10000, 0x20000 run
@@ -1162,6 +1162,7 @@ class MANGOS_DLL_SPEC Unit : public WorldObject
         void NearTeleportTo(float x, float y, float z, float orientation, bool casting = false);
 
         void SendMonsterMove(float NewPosX, float NewPosY, float NewPosZ, uint8 type, MonsterMovementFlags flags, uint32 Time, Player* player = NULL);
+        void SendMonsterMoveJump(float NewPosX, float NewPosY, float NewPosZ, float vert_speed, uint32 flags, uint32 Time, Player* player = NULL);
         void SendMonsterMoveByPath(Path const& path, uint32 start, uint32 end, MonsterMovementFlags flags);
 
         void SendHighestThreatUpdate(HostileReference* pHostileReference);