diff --git a/5g-ran-sim/templates/bin/_gnbsim-run.sh.tpl b/5g-ran-sim/templates/bin/_gnbsim-run.sh.tpl
index 130d18a..bc5db92 100644
--- a/5g-ran-sim/templates/bin/_gnbsim-run.sh.tpl
+++ b/5g-ran-sim/templates/bin/_gnbsim-run.sh.tpl
@@ -13,7 +13,13 @@
 cd /gnbsim
 cat ./config/gnb.conf
 cat /etc/hosts
-ip route add 192.168.252.0/24 via 192.168.251.1
+
+{{- if not .Values.config.gnbsim.singleInterface }}
+{{- range .Values.config.gnbsim.networkTopo }}
+ip route add {{ .upfAddr }} via {{ .upfGw }}
+{{- end }}
+
 # Disabling checksum offloading to hardware
 ethtool -K enb tx off
+{{- end }}
 sleep infinity