Modified cases for ipmi network

"REDFISH_NW_ETH0" is hardcode as
"Managers/bmc/EthernetInterfaces/eth0/" and the command "lan print"
didn't specify the channel number. Therefore, the default will print
information on the first found LAN channel.

Signed-off-by: Tony Lee <tony.lee@quantatw.com>
Change-Id: I86a0a41275cdfb98aa502fc29f8bc9074dc62280
diff --git a/data/variables.py b/data/variables.py
index 4894632..00120bb 100755
--- a/data/variables.py
+++ b/data/variables.py
@@ -157,6 +157,7 @@
 REDFISH_SESSION_URI = 'SessionService/Sessions/'
 REDFISH_NW_ETH0 = 'Managers/bmc/EthernetInterfaces/eth0/'
 REDFISH_NW_ETH0_URI = REDFISH_BASE_URI + REDFISH_NW_ETH0
+REDFISH_NW_ETH_IFACE = REDFISH_BASE_URI + 'Managers/bmc/EthernetInterfaces/'
 REDFISH_NW_PROTOCOL = 'Managers/bmc/NetworkProtocol'
 REDFISH_NW_PROTOCOL_URI = REDFISH_BASE_URI + REDFISH_NW_PROTOCOL
 REDFISH_ACCOUNTS_SERVICE = 'AccountService/'