diff --git a/xCAT-server/share/xcat/install/scripts/post.rh b/xCAT-server/share/xcat/install/scripts/post.rh
index b9b4afeb9..269fe8fa1 100644
--- a/xCAT-server/share/xcat/install/scripts/post.rh
+++ b/xCAT-server/share/xcat/install/scripts/post.rh
@@ -6,6 +6,8 @@ export PRINIC=#TABLE:noderes:THISNODE:primarynic#
 if [ -z "$PRINIC" ]
 then
     export PRINIC=eth0
+elif [[ `echo "$PRINIC" | grep -sqE ^[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+$ ;echo $?` == "0" ]]; then
+    export PRINIC=`ifconfig -a | grep -i "HWaddr $PRINIC" | awk '{print $1}'`
 fi
 IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
 if [ -z $IP ]
diff --git a/xCAT-server/share/xcat/install/scripts/post.sles b/xCAT-server/share/xcat/install/scripts/post.sles
index 9b412c661..110eca9b5 100644
--- a/xCAT-server/share/xcat/install/scripts/post.sles
+++ b/xCAT-server/share/xcat/install/scripts/post.sles
@@ -19,6 +19,8 @@ EOF
 export PRINIC=#TABLE:noderes:$NODE:primarynic#
 if [ -z "$PRINIC" ]; then
     export PRINIC=eth0
+elif [[ `echo "$PRINIC" | grep -sqE ^[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+$ ;echo $?` == "0" ]]; then
+    export PRINIC=`ifconfig -a | grep -i "HWaddr $PRINIC" | awk '{print $1}'`
 fi
 if [ "$PRINIC" != "eth0" ]
 then
diff --git a/xCAT-server/share/xcat/install/scripts/post.sles11 b/xCAT-server/share/xcat/install/scripts/post.sles11
index 60433f353..0c45e463d 100644
--- a/xCAT-server/share/xcat/install/scripts/post.sles11
+++ b/xCAT-server/share/xcat/install/scripts/post.sles11
@@ -19,6 +19,8 @@ EOF
 export PRINIC=#TABLE:noderes:$NODE:primarynic#
 if [ -z "$PRINIC" ]; then
     export PRINIC=eth0
+elif [[ `echo "$PRINIC" | grep -sqE ^[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+:[A-Fa-f0-9]+$ ;echo $?` == "0" ]]; then
+    export PRINIC=`ifconfig -a | grep -i "HWaddr $PRINIC" | awk '{print $1}'`
 fi
 if [ "$PRINIC" != "eth0" ]
 then