diff --git a/package/czechlight-cfg-fs/migrations/0002_default_startup_configuration_for_ietf-interfaces.sh b/package/czechlight-cfg-fs/migrations/0002_default_startup_configuration_for_ietf-interfaces.sh
new file mode 100644
index 0000000..b21251c
--- /dev/null
+++ b/package/czechlight-cfg-fs/migrations/0002_default_startup_configuration_for_ietf-interfaces.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# setup default configuration for ietf-interfaces in startup DS
+# This overwrites current networking setup
+
+set -x
+set -e
+
+if [[ ${YANG_INLINE} == 1 ]]; then
+    sysrepocfg --datastore=startup --format=json --module=ietf-interfaces --import="${MIGRATIONS_DIRECTORY}/0002_ietf-interfaces_default-startup-config_sdn-inline.json"
+else
+    sysrepocfg --datastore=startup --format=json --module=ietf-interfaces --import="${MIGRATIONS_DIRECTORY}/0002_ietf-interfaces_default-startup-config.json"
+fi
diff --git a/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config.json b/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config.json
new file mode 100644
index 0000000..25dc77e
--- /dev/null
+++ b/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config.json
@@ -0,0 +1,34 @@
+{
+  "ietf-interfaces:interfaces": {
+    "interface": [
+      {
+        "name": "br0",
+        "type": "iana-if-type:bridge",
+        "ietf-ip:ipv4": {
+          "czechlight-network:dhcp-client": true
+        },
+        "ietf-ip:ipv6": {
+          "enabled": true,
+          "autoconf": {
+            "create-global-addresses": true
+          }
+        }
+      },
+      {
+        "name": "eth1",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      },
+      {
+        "name": "eth0",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      },
+      {
+        "name": "osc",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      }
+    ]
+  }
+}
diff --git a/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config_sdn-inline.json b/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config_sdn-inline.json
new file mode 100644
index 0000000..58babdd
--- /dev/null
+++ b/package/czechlight-cfg-fs/migrations/0002_ietf-interfaces_default-startup-config_sdn-inline.json
@@ -0,0 +1,39 @@
+{
+  "ietf-interfaces:interfaces": {
+    "interface": [
+      {
+        "name": "br0",
+        "type": "iana-if-type:bridge",
+        "ietf-ip:ipv4": {
+          "czechlight-network:dhcp-client": true
+        },
+        "ietf-ip:ipv6": {
+          "enabled": true,
+          "autoconf": {
+            "create-global-addresses": true
+          }
+        }
+      },
+      {
+        "name": "eth1",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      },
+      {
+        "name": "eth0",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      },
+      {
+        "name": "oscE",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      },
+      {
+        "name": "oscW",
+        "type": "iana-if-type:ethernetCsmacd",
+        "czechlight-network:bridge": "br0"
+      }
+    ]
+  }
+}