Can disable SGI interface

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5131 818b1a75-f10b-46b9-bf7c-635c3b92a50f

targets/PROJECTS/GENERIC-LTE-EPC/utils.bash

@@ -543,6 +543,9 @@ build_mme_spgw_vlan_network() {
         echo_fatal "BAD INTERFACE NAME FOR SGW S1U $SGW_INTERFACE_NAME_FOR_S1U_S12_S4_UP"' (waiting for ethx.y, wlanx.y or wifix.y)'
     fi;
     
+    #
+    is_real_interface $PGW_INTERFACE_NAME_FOR_SGI
+    if [ $? -eq 1 ]; then
         ping -c 1 router.eur > /dev/null || { echo_fatal "router.eur does not respond to ping" >&2 ; }
         IP_ROUTER=`python -c 'import socket; print socket.gethostbyname("router.eur")'`
         export MAC_ROUTER=`ip neigh show | grep $IP_ROUTER | cut -d ' '  -f5 | tr -d ':'`
@@ -650,6 +653,9 @@ build_mme_spgw_vlan_network() {
         fi
 
         bash_exec "ip link set $PGW_INTERFACE_NAME_FOR_SGI promisc on"
+    else
+        echo_warning "SGI interface disabled by config file"
+    fi
 }
 
 clean_epc_vlan_network() {