diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_enb.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_enb.bash
index 16f46f0f37..3cc6223a6b 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_enb.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_enb.bash
@@ -100,7 +100,7 @@ VARIABLES="
            ENB_IPV4_ADDRESS_FOR_S1_MME\|\
            ENB_INTERFACE_NAME_FOR_S1U\|\
            ENB_IPV4_ADDRESS_FOR_S1U\|\
-           hard_real_time"
+           real_time"
 
 VARIABLES=$(echo $VARIABLES | sed -e 's/\\r//g')
 VARIABLES=$(echo $VARIABLES | tr -d ' ')
@@ -124,7 +124,7 @@ if [ ! -d $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME ]; then
     mkdir -m 777 -p $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME
 fi
 
-if [ x$hard_real_time != "xyes" ]; then
+if [ x$real_time != "xhard" ]; then
     ITTI_LOG_FILE=$THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/itti_enb_ue.$HOSTNAME.log
     #rotate_log_file $ITTI_LOG_FILE
     
@@ -156,42 +156,48 @@ else
 fi
 
 
-if [ x$hard_real_time != "xyes" ]; then
+if [ x$real_time == "xno" ]; then
     echo_warning "USER MODE"
     make --directory=$OPENAIR_TARGETS/SIMU/USER $MAKE_LTE_ACCESS_STRATUM_TARGET -j`grep -c ^processor /proc/cpuinfo ` || exit 1
     bash_exec "ip route add 239.0.0.160/28 dev $EMULATION_DEV_INTERFACE"
     gdb --args $OPENAIR_TARGETS/SIMU/USER/oaisim -a  -l9 -u0 -b1 -M0 -p2  -g$EMULATION_MULTICAST_GROUP -D $EMULATION_DEV_ADDRESS -K $ITTI_LOG_FILE --enb-conf $CONFIG_FILE_ENB 2>&1 | tee $STDOUT_LOG_FILE 
 else
-    echo_warning "HARD REAL TIME MODE"
-    PATH=$PATH:/usr/realtime/bin
-    
-    #make --directory=$OPENAIR_TARGETS/RT/USER drivers  || exit 1
-    # 2 lines below replace the line above
-    cd $OPENAIR_TARGETS/ARCH/EXMIMO/DRIVER/eurecom && make clean && make   || exit 1
-    cd $OPENAIR_TARGETS/ARCH/EXMIMO/USERSPACE/OAI_FW_INIT && make clean && make   || exit 1
-    cd $THIS_SCRIPT_PATH
-    
-    make --directory=$OPENAIR_TARGETS/RT/USER $MAKE_LTE_ACCESS_STRATUM_TARGET_RT -j`grep -c ^processor /proc/cpuinfo ` || exit 1
-    
-    if [ ! -f /tmp/init_rt_done.tmp ]; then
-        echo_warning "STARTING REAL TIME (RTAI)"
-        insmod /usr/realtime/modules/rtai_hal.ko     > /dev/null 2>&1
-        insmod /usr/realtime/modules/rtai_sched.ko   > /dev/null 2>&1
-        insmod /usr/realtime/modules/rtai_sem.ko     > /dev/null 2>&1
-        insmod /usr/realtime/modules/rtai_fifos.ko   > /dev/null 2>&1
-        insmod /usr/realtime/modules/rtai_mbx.ko     > /dev/null 2>&1
-        touch /tmp/init_rt_done.tmp
-        chmod 666 /tmp/init_rt_done.tmp
+    if [ x$real_time == "xhard" ]; then
+        echo_warning "HARD REAL TIME MODE"
+        PATH=$PATH:/usr/realtime/bin
+
+        #make --directory=$OPENAIR_TARGETS/RT/USER drivers  || exit 1
+        # 2 lines below replace the line above
+        cd $OPENAIR_TARGETS/ARCH/EXMIMO/DRIVER/eurecom && make clean && make   || exit 1
+        cd $OPENAIR_TARGETS/ARCH/EXMIMO/USERSPACE/OAI_FW_INIT && make clean && make   || exit 1
+        cd $THIS_SCRIPT_PATH
+
+        make --directory=$OPENAIR_TARGETS/RT/USER $MAKE_LTE_ACCESS_STRATUM_TARGET_RT -j`grep -c ^processor /proc/cpuinfo ` || exit 1
+
+        if [ ! -f /tmp/init_rt_done.tmp ]; then
+            echo_warning "STARTING REAL TIME (RTAI)"
+            insmod /usr/realtime/modules/rtai_hal.ko     > /dev/null 2>&1
+            insmod /usr/realtime/modules/rtai_sched.ko   > /dev/null 2>&1
+            insmod /usr/realtime/modules/rtai_sem.ko     > /dev/null 2>&1
+            insmod /usr/realtime/modules/rtai_fifos.ko   > /dev/null 2>&1
+            insmod /usr/realtime/modules/rtai_mbx.ko     > /dev/null 2>&1
+            touch /tmp/init_rt_done.tmp
+            chmod 666 /tmp/init_rt_done.tmp
+        else
+            echo_warning "REAL TIME FOUND STARTED (RTAI)"
+        fi
+
+        cd $OPENAIR_TARGETS/RT/USER
+        bash ./init_exmimo2.sh
+        echo_warning "STARTING SOFTMODEM..."
+        #cat /dev/rtf62 > $STDOUT_LOG_FILE &
+        gdb --args ./lte-softmodem -K $ITTI_LOG_FILE -V  -O $CONFIG_FILE_ENB  2>&1
+        cd $THIS_SCRIPT_PATH
     else
-        echo_warning "REAL TIME FOUND STARTED (RTAI)"
+        if [ x$real_time == "xrt-preempt" ]; then
+            echo_fatal "TODO RT-PREEMT"
+        fi
     fi
-    
-    cd $OPENAIR_TARGETS/RT/USER
-    bash ./init_exmimo2.sh
-    echo_warning "STARTING SOFTMODEM..."
-    #cat /dev/rtf62 > $STDOUT_LOG_FILE &
-    gdb --args ./lte-softmodem -K $ITTI_LOG_FILE -V  -O $CONFIG_FILE_ENB  2>&1
-    cd $THIS_SCRIPT_PATH
 fi
 
 pkill tshark
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
index 83387d4d63..2b479aaec1 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
@@ -335,8 +335,14 @@ MME_INTERFACE_NAME_FOR_S6A=`ip route get $HSS_IP | grep $HSS_IP | cut -d ' ' -f
 
 echo_success "MME_INTERFACE_NAME_FOR_S1_MME : $MME_INTERFACE_NAME_FOR_S1_MME"
 echo_success "MME_INTERFACE_NAME_FOR_S6A    : $MME_INTERFACE_NAME_FOR_S6A"
-nohup tshark -i $MME_INTERFACE_NAME_FOR_S1_MME -f "not port 22" -w $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$PCAP_S1C_LOG_FILE &
-nohup tshark -i $MME_INTERFACE_NAME_FOR_S6A    -f "not port 22" -w $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$PCAP_S6A_LOG_FILE &
+if [ x$MME_INTERFACE_NAME_FOR_S1_MME == x$MME_INTERFACE_NAME_FOR_S6A ]; then 
+    nohup tshark -i $MME_INTERFACE_NAME_FOR_S1_MME -f "not port 22" -w $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$PCAP_S1C_LOG_FILE &
+else
+    nohup tshark -i $MME_INTERFACE_NAME_FOR_S1_MME -f "not port 22" -w $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$PCAP_S1C_LOG_FILE &
+    nohup tshark -i $MME_INTERFACE_NAME_FOR_S6A    -f "not port 22" -w $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$PCAP_S6A_LOG_FILE &
+fi
+wait_process_started tshark
+
 
 cd $OPENAIRCN_DIR/$OBJ_DIR
 
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_router.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_router.bash
index 0059db8d84..b4bb5f4da9 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_router.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_router.bash
@@ -38,7 +38,7 @@
 #Setting the EXTERNAL and INTERNAL interfaces for the network
 #############################################################
 declare EXTIF="eth1"
-declare INTIF="eth2"
+declare INTIF="eth0"
 
 IPTABLES=/sbin/iptables
 DEPMOD=/sbin/depmod
@@ -187,8 +187,8 @@ echo "1" > /proc/sys/net/ipv4/conf/$EXTIF/proxy_arp
 echo "1" > /proc/sys/net/ipv4/conf/$INTIF/proxy_arp
 
 echo "   FWD: Allow all connections OUT and only existing and related ones IN"
-bash_exec "iptables -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT"
-bash_exec "iptables -A FORWARD -i $INTIF -o $EXTIF -m state --state NEW,ESTABLISHED,RELATED,INVALID -j ACCEPT"
+bash_exec "iptables -A FORWARD -i $EXTIF -o $INTIF ! --protocol sctp -m state --state ESTABLISHED,RELATED -j ACCEPT"
+bash_exec "iptables -A FORWARD -i $INTIF -o $EXTIF ! --protocol sctp  -m state --state NEW,ESTABLISHED,RELATED,INVALID -j ACCEPT"
 
 bash_exec "modprobe 8021q"
 
@@ -208,8 +208,8 @@ do
     NET=$(( $i + 200 ))
     CIDR='10.0.'$NET'.1/8'
     bash_exec "ip -4 addr add $CIDR dev $INTIF.$i"
-    bash_exec "iptables -A FORWARD -i $EXTIF -o $INTIF.$i -m state --state ESTABLISHED,RELATED -j ACCEPT"
-    bash_exec "iptables -A FORWARD -i $INTIF.$i -o $EXTIF -m state --state NEW,ESTABLISHED,RELATED,INVALID -j ACCEPT"
+    bash_exec "iptables -A FORWARD -i $EXTIF -o $INTIF.$i  ! --protocol sctp -m state --state ESTABLISHED,RELATED -j ACCEPT"
+    bash_exec "iptables -A FORWARD -i $INTIF.$i -o $EXTIF  ! --protocol sctp -m state --state NEW,ESTABLISHED,RELATED,INVALID -j ACCEPT"
     bash_exec "echo 1 > /proc/sys/net/ipv4/conf/$INTIF.$i/proxy_arp"
     bash_exec "echo 0 > /proc/sys/net/ipv4/conf/$INTIF.$i/rp_filter"
 done
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_sgi.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_sgi.bash
index d8d6b4e7a3..5d82ea2090 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_sgi.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_sgi.bash
@@ -90,5 +90,18 @@ source /tmp/source.txt
 declare PGW_IPV4_NETMASK_FOR_SGI=$(          echo $PGW_IPV4_ADDR_FOR_SGI              | cut -f2 -d '/')
 PGW_IPV4_ADDR_FOR_SGI=$(                     echo $PGW_IPV4_ADDR_FOR_SGI              | cut -f1 -d '/')
 
+bash_exec "iptables -P INPUT ACCEPT"
+bash_exec "iptables -F INPUT"
+bash_exec "iptables -P OUTPUT ACCEPT"
+bash_exec "iptables -F OUTPUT"
+bash_exec "iptables -P FORWARD ACCEPT"
+bash_exec "iptables -F FORWARD"
+bash_exec "iptables -t nat -F"
+bash_exec "iptables -t mangle -F"
+bash_exec "iptables -t filter -F"
+bash_exec "iptables -t raw -F"
+
+bash_exec "iptables -A OUTPUT  -o eth1                           --protocol sctp -j DROP"
+
 
 create_sgi_vlans