diff --git a/xCAT-server/share/xcat/install/scripts/post.debian b/xCAT-server/share/xcat/install/scripts/post.debian
index 38dc53027..a6cb2f9e3 100644
--- a/xCAT-server/share/xcat/install/scripts/post.debian
+++ b/xCAT-server/share/xcat/install/scripts/post.debian
@@ -17,7 +17,7 @@ fi
 IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
 if [ -z $IP ]
 then
-	dhclient eth0
+	dhclient $PRINIC
 	IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
 fi
 echo "search #TABLE:site:key=domain:value#" >/etc/resolv.conf
diff --git a/xCAT-server/share/xcat/install/scripts/post.esx b/xCAT-server/share/xcat/install/scripts/post.esx
index ba5911f67..267a95f83 100644
--- a/xCAT-server/share/xcat/install/scripts/post.esx
+++ b/xCAT-server/share/xcat/install/scripts/post.esx
@@ -17,7 +17,7 @@ fi
 IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
 if [ -z $IP ]
 then
-	dhclient eth0
+	dhclient $PRINIC
 	IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
 fi
 echo "search #TABLE:site:key=domain:value#" >/etc/resolv.conf
diff --git a/xCAT-server/share/xcat/install/scripts/post.ubuntu b/xCAT-server/share/xcat/install/scripts/post.ubuntu
index 20bd8bf01..515437953 100755
--- a/xCAT-server/share/xcat/install/scripts/post.ubuntu
+++ b/xCAT-server/share/xcat/install/scripts/post.ubuntu
@@ -25,7 +25,7 @@ fi
 IP=$(ip addr show dev $PRINIC | grep inet | grep -v inet6  | awk  '{print $2}' | head -n 1 | awk -F '/' '{print $1}')
 if [ -z $IP ]
 then
-	dhclient eth0
+	dhclient $PRINIC
 	#IP=$(ifconfig $PRINIC | grep inet | awk '{print $2}' | awk -F: '{print $2}')
         IP=$(ip addr show dev $PRINIC | grep inet | grep -v inet6  | awk  '{print $2}' | head -n 1 | awk -F '/' '{print $1}')
 fi