diff --git a/targets/DOCS/oaisim_walkthrough.pdf b/targets/DOCS/oaisim_walkthrough.pdf
new file mode 100644
index 0000000000..1e9c0c1157
Binary files /dev/null and b/targets/DOCS/oaisim_walkthrough.pdf differ
diff --git a/targets/README.txt b/targets/README.txt
index fcaf698ac8..c35a422fef 100644
--- a/targets/README.txt
+++ b/targets/README.txt
@@ -19,6 +19,7 @@ First, you must have all four openair SW directories, openair1, openair2, openai
 	- libgtk-3-dev
         - libxml2 and libxml2-dev and gccxml
         - libforms-bin libforms-dev
+	- nettle-dev nettle-bin openssl
 	- libatlas-base-dev and libatlas-headers (for Ubuntu 11.04, libatlas-dev instead of libatlas-headers)
         - asn1c and the LTE ASN1 files (for more information on how to install this and generate the required files see the README file in openair2/RRC/LITE/MESSAGES) 
 
@@ -64,3 +65,17 @@ The 3 folders have the following structures
      + after the line: %admin ALL=(ALL) ALL,           add : user_name   ALL=(ALL) NOPASSWD: ALL
    - include this line: alias sudo='sudo -E', to the .bashrc 
    - run oai as follows: sudo ./oaisim arg1 arg2 ....
+
+
+----------------------------------------------------------------
+4)  Detail Instructions
+----------------------------------------------------------------
+
+	Please follow the instructions given in DOCS/oaisim_walkthrough.pdf
+
+
+----------------------------------------------------------------
+5) OAI on virtual machine  
+----------------------------------------------------------------
+	you may download the image using this URL: https://emu.openairinterface.org/openairlab/openairlab.zip
+	chekc that all the packges are there as some packages might be added later.
diff --git a/targets/SIMU/USER/Makefile b/targets/SIMU/USER/Makefile
index c9ca925f8e..42581887f0 100644
--- a/targets/SIMU/USER/Makefile
+++ b/targets/SIMU/USER/Makefile
@@ -188,11 +188,11 @@ endif
 
 ifdef SECU
 ifeq ($(NETTLE_FOUND), 0)
-@echo "Nettle library >= 2.5 is not installed on your system, continuing with security disabled"
+@echo "Nettle library >= 2.5 is not installed on your system, nettle-dev lib needed, continuing with security disabled"
 SECU=0
 else
 ifeq ($(OPENSSL_FOUND), 0)
-@echo "openssl library is not installed on your system, continuing with security disabled"
+@echo "openssl library is not installed on your system, openssl lib needed, continuing with security disabled"
 SECU=0
 else
 CFLAGS += -DENABLE_SECURITY
diff --git a/targets/SIMU/USER/oaisim.c b/targets/SIMU/USER/oaisim.c
index 70a160397f..9e02219572 100644
--- a/targets/SIMU/USER/oaisim.c
+++ b/targets/SIMU/USER/oaisim.c
@@ -1303,9 +1303,9 @@ void reset_opp_meas(void){
       reset_meas(&eNB_mac_inst[eNB_id].schedule_mch); // only embms 
       reset_meas(&eNB_mac_inst[eNB_id].rx_ulsch_sdu); // include rlc_data_ind + mac header parser
      
-      reset_meas(&eNB_pdcp_stats[UE_id].pdcp_run);
-      reset_meas(&eNB_pdcp_stats[UE_id].data_req);
-      reset_meas(&eNB_pdcp_stats[UE_id].data_ind);
+      reset_meas(&eNB_pdcp_stats[eNB_id].pdcp_run);
+      reset_meas(&eNB_pdcp_stats[eNB_id].data_req);
+      reset_meas(&eNB_pdcp_stats[eNB_id].data_ind);
       /*
       reset_meas(&eNB_pdcp_stats[UE_id].encrption);
       reset_meas(&eNB_pdcp_stats[UE_id].decrption);
@@ -1436,9 +1436,9 @@ void print_opp_meas(void){
     print_meas(&eNB_mac_inst[eNB_id].schedule_ulsch,"[eNB][UL][ULSCH]",&oaisim_stats,&oaisim_stats_f); 
     print_meas(&eNB_mac_inst[eNB_id].rx_ulsch_sdu,"[eNB][UL][rx_ulsch_sdu]",&oaisim_stats,&oaisim_stats_f); 
 
-    print_meas(&eNB_pdcp_stats[UE_id].pdcp_run,"[eNB][pdcp_run]",&oaisim_stats,&oaisim_stats_f);
-    print_meas(&eNB_pdcp_stats[UE_id].data_req,"[eNB][DL][pdcp_data_req]",&oaisim_stats,&oaisim_stats_f);
-    print_meas(&eNB_pdcp_stats[UE_id].data_ind,"[eNB][UL][pdcp_data_ind]",&oaisim_stats,&oaisim_stats_f);
+    print_meas(&eNB_pdcp_stats[eNB_id].pdcp_run,"[eNB][pdcp_run]",&oaisim_stats,&oaisim_stats_f);
+    print_meas(&eNB_pdcp_stats[eNB_id].data_req,"[eNB][DL][pdcp_data_req]",&oaisim_stats,&oaisim_stats_f);
+    print_meas(&eNB_pdcp_stats[eNB_id].data_ind,"[eNB][UL][pdcp_data_ind]",&oaisim_stats,&oaisim_stats_f);
   }
   
 }