diff --git a/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay--user-data-cfg01.yaml b/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay--user-data-cfg01.yaml
index d3a5720..8056dce 100644
--- a/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay--user-data-cfg01.yaml
+++ b/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay--user-data-cfg01.yaml
@@ -58,7 +58,10 @@
    - apt-get update
 
    # Install common packages
-   - eatmydata apt-get install -y python-pip git curl tmux byobu iputils-ping traceroute htop tree
+   - eatmydata apt-get install -y python-pip git curl tmux byobu iputils-ping traceroute htop tree sshuttle
+
+   # Use sshuttle to allow SSH access to the model-related control network 10.167.4.0/24 on baremetal/VM nodes from cfg01
+   - sshuttle -r {{ ETH0_IP_ADDRESS_KVM01 }} 10.167.4.0/24 -D
 
    ########################################################
    # Node is ready, allow SSH access
diff --git a/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay.yaml b/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay.yaml
index 0ad2184..6165b66 100644
--- a/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay.yaml
+++ b/tcp_tests/templates/physical_mcp11_ovs_dpdk/underlay.yaml
@@ -98,7 +98,7 @@
             role: salt_master
             params:
               vcpu: !os_env SLAVE_NODE_CPU, 4
-              memory: !os_env SLAVE_NODE_MEMORY, 2048
+              memory: !os_env SLAVE_NODE_MEMORY, 4096
               boot:
                 - hd
               cloud_init_volume_name: iso