add param:N3_GW

etc/template/startup_debug.template

@@ -53,7 +53,8 @@ dpdk {
              
              ipaddr @N3_IP@
              netmask 24
-             gateway 192.168.2.197
+             gateway @N3_GW@
+
      }
 
      dev @PCI_ADDR_ID_EXPORT@

etc/upf.yaml

@@ -3,6 +3,7 @@ vpp:
     gtpu_entry_ip: 192.168.2.182
     gtpu_export_ip: 192.168.2.22
   ip_link:
+    N3_GW: 192.168.2.199
     vppHostIP: 192.168.2.1
     gtpu_entry: ens33
     gtpu_export: ens34

scripts/run_upf.sh

@@ -29,7 +29,7 @@ SNAT_IP=""
 VPPHOST=""
 DPDK_EXPORT=""
 DPDK_ENTRY=""
-
+N3_GW=""
 
 DPDK_ENTRY_PCI=""
 DPDK_EXPORT_PCI=""
@@ -44,10 +44,14 @@ function init_configure(){
   cp $base/plugin/yq $current
   # nat
   SNAT_IP=$($current/yq r $yaml vpp.ip_link.snatIP)
+  N3_GW_IP=$($current/yq r $yaml vpp.ip_link.N3_GW)
   VPPHOST=$($current/yq r $yaml vpp.ip_link.vppHost)
   DPDK_EXPORT=$($current/yq r $yaml vpp.ip_link.gtpu_export)
   DPDK_ENTRY=$($current/yq r $yaml vpp.ip_link.gtpu_entry)
   CPUNUMBER=$($current/yq r $yaml vpp.ip_link.cpu)
+
+  sed  's/@N3_GW@/${N3_GW_IP}/' /opt/5gc/startup_debug.conf
+
   rm -rf $current/yq
 }