diff --git a/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml b/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
index fbbda4b..77b2573 100644
--- a/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
@@ -212,7 +212,7 @@
             address_pool: external-pool01
             dhcp: false
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes:
diff --git a/tcp_tests/templates/cookied-mcp-ocata-dvr-vxlan/underlay.yaml b/tcp_tests/templates/cookied-mcp-ocata-dvr-vxlan/underlay.yaml
index cffa424..502997f 100644
--- a/tcp_tests/templates/cookied-mcp-ocata-dvr-vxlan/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-ocata-dvr-vxlan/underlay.yaml
@@ -328,7 +328,7 @@
             address_pool: external-pool01
             dhcp: false
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes:
diff --git a/tcp_tests/templates/cookied-mcp-pike-dpdk/underlay.yaml b/tcp_tests/templates/cookied-mcp-pike-dpdk/underlay.yaml
index 1097d70..decee43 100644
--- a/tcp_tests/templates/cookied-mcp-pike-dpdk/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-dpdk/underlay.yaml
@@ -178,7 +178,7 @@
             address_pool: external-pool01
             dhcp: true
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes:
diff --git a/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml b/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
index 8b6c716..4c8efd8 100644
--- a/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
@@ -152,7 +152,7 @@
             address_pool: external-pool01
             dhcp: true
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes:
diff --git a/tcp_tests/templates/cookied-mcp-pike-dvr/underlay.yaml b/tcp_tests/templates/cookied-mcp-pike-dvr/underlay.yaml
index 9aeabca..d8ed2c1 100644
--- a/tcp_tests/templates/cookied-mcp-pike-dvr/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-dvr/underlay.yaml
@@ -192,7 +192,7 @@
             address_pool: external-pool01
             dhcp: false
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes:
diff --git a/tcp_tests/templates/cookied-mcp-pike-ovs/underlay.yaml b/tcp_tests/templates/cookied-mcp-pike-ovs/underlay.yaml
index fea38c9..89cf22b 100644
--- a/tcp_tests/templates/cookied-mcp-pike-ovs/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-ovs/underlay.yaml
@@ -182,7 +182,7 @@
             address_pool: external-pool01
             dhcp: false
             forward:
-              mode: nat
+              mode: route
 
 
         group_volumes: