diff --git a/lib/external_intf/vmi_utils.robot b/lib/external_intf/vmi_utils.robot
index fddafd7..1ff585e 100644
--- a/lib/external_intf/vmi_utils.robot
+++ b/lib/external_intf/vmi_utils.robot
@@ -18,13 +18,14 @@
 &{DISABLE_DHCP}           DHCPv4=&{DHCP_DISABLED}
 
 ${wait_time}              10s
+${ethernet_interface}     eth0
 
 *** Keywords ***
 
 Set Static IPv4 Address To VMI And Verify
     [Documentation]  Set static IPv4 address to VMI.
     [Arguments]  ${ip}  ${gateway}  ${netmask}  ${valid_status_code}=${HTTP_ACCEPTED}
-    ...  ${interface}=eth0
+    ...  ${interface}=${ethernet_interface}
 
     # Description of argument(s):
     # ip                 VMI IPv4 address.
@@ -49,7 +50,7 @@
 Verify VMI Network Interface Details
     [Documentation]  Verify VMI network interface details.
     [Arguments]  ${ip}  ${origin}  ${gateway}  ${netmask}
-    ...  ${interface}=eth0  ${valid_status_code}=${HTTP_OK}
+    ...  ${interface}=${ethernet_interface}  ${valid_status_code}=${HTTP_OK}
 
     # Description of argument(s):
     # ip                 VMI IPv4 address.
@@ -68,7 +69,7 @@
 Delete VMI IPv4 Address
     [Documentation]  Delete VMI IPv4 address.
     [Arguments]  ${delete_param}=IPv4StaticAddresses  ${valid_status_code}=${HTTP_ACCEPTED}
-    ...  ${interface}=eth0
+    ...  ${interface}=${ethernet_interface}
 
     # Description of argument(s):
     # delete_param       Parameter to be deleted eg. IPv4StaticAddresses or IPv4Addresses.
@@ -91,7 +92,7 @@
 Set VMI IPv4 Origin
     [Documentation]  Set VMI IPv4 origin.
     [Arguments]  ${dhcp_enabled}=${False}  ${valid_status_code}=${HTTP_ACCEPTED}
-    ...  ${interface}=eth0
+    ...  ${interface}=${ethernet_interface}
 
     # Description of argument(s):
     # dhcp_enabled       True if user wants to enable DHCP. Default is Static, hence value is set to False.
@@ -111,7 +112,7 @@
 
 Get VMI Network Interface Details
     [Documentation]  Get VMI network interface details.
-    [Arguments]  ${interface}=eth0  ${valid_status_code}=${HTTP_OK}
+    [Arguments]  ${interface}=${ethernet_interface}  ${valid_status_code}=${HTTP_OK}
 
     # Description of argument(s):
     # interface          VMI interface (eg. eth0 or eth1).