diff --git a/tcp_tests/templates/virtual-offline-pike-ovs/underlay.yaml b/tcp_tests/templates/virtual-offline-pike-ovs/underlay.yaml
index 569a96c..011bb72 100644
--- a/tcp_tests/templates/virtual-offline-pike-ovs/underlay.yaml
+++ b/tcp_tests/templates/virtual-offline-pike-ovs/underlay.yaml
@@ -87,7 +87,7 @@
         net: {{ os_env('EXTERNAL_ADDRESS_POOL01', '10.90.0.0/16:24') }}
         params:
           ip_reserved:
-            l2_network_device: +1
+            l2_network_device: +122
             default_{{ HOSTNAME_APT01 }}: +122
             default_{{ HOSTNAME_CFG01 }}: +100
             default_{{ HOSTNAME_CTL01 }}: +101