diff --git a/xCAT-probe/subcmds/xcatmn b/xCAT-probe/subcmds/xcatmn
index 25fbcfe08..1bb84e807 100755
--- a/xCAT-probe/subcmds/xcatmn
+++ b/xCAT-probe/subcmds/xcatmn
@@ -388,10 +388,17 @@ sub check_site_table {
                 $rst = 1;
             }
         } else {
-            if (($attr eq "master") and (!probe_utils->is_ip_addr("$value"))) {
-                push @$error_ref, "The value of 'master' in 'site' table isn't an IP addres";
-                $rst = 1;
+            if (($attr eq "master") and (!xCAT::NetworkUtils->isIpaddr("$value"))) {
+                my $masterip = xCAT::NetworkUtils->getipaddr("$value");
+                if (! defined $masterip){
+                    push @$error_ref, "The value of 'master' in 'site' table isn't an IP addres and can not be resolved to a IP addres";
+                    $rst = 1;
+                }else{
+                    probe_utils->send_msg("$output", "i", "The value of 'master' in 'site' table is $value,  can be resolve to $masterip") if($verbose);
+                    $value = $masterip;
+                }
             }
+
             $sitetable_ref->{$attr} = $value;
         }
     }