diff --git a/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py b/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
index d4fe6d3..c7b2f8f 100644
--- a/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
+++ b/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
@@ -86,7 +86,7 @@
         """
 
         self._create_networks_and_subnets(
-            subnet_cidr=CONF.bgpvpn.l3vpn_endpoint
+            subnet_cidr=CONF.bgpvpn.l3vpn_subnet_cidr
         )
         self._create_server()
         self._create_bgpvpn(rts=CONF.bgpvpn.route_target)
diff --git a/neutron_tempest_plugin/config.py b/neutron_tempest_plugin/config.py
index c38d755..033df83 100644
--- a/neutron_tempest_plugin/config.py
+++ b/neutron_tempest_plugin/config.py
@@ -185,6 +185,10 @@
                default=None,
                help=("IP Address/Mask, which will be used to "
                      "test the l3vpn connectivity.")),
+    cfg.StrOpt('l3vpn_subnet_cidr',
+               default="192.168.0.254/24",
+               help=("IP Address/Mask, which will be used as private network"
+                     "test the l3vpn connectivity.")),
     cfg.StrOpt('l2vpn_endpoint',
                default=None,
                help=("IP Address/Mask, which will be used to "