diff --git a/@overflow/discovery/component/discovery-infra-tree.component.ts b/@overflow/discovery/component/discovery-infra-tree.component.ts
index 5fdcac7..89dafc0 100644
--- a/@overflow/discovery/component/discovery-infra-tree.component.ts
+++ b/@overflow/discovery/component/discovery-infra-tree.component.ts
@@ -360,7 +360,7 @@ export class DiscoveryInfraTreeComponent implements OnChanges {
 
   saveTargets() {
     this.pending$ = of(true);
-    const targets: Target[] = [];
+    const infraIDs: number[] = [];
     this.selectedItems.forEach(node => {
       let infraID = node.data.infraID;
       if (null === infraID) { // 새로 발견된 Host or Service
@@ -389,19 +389,12 @@ export class DiscoveryInfraTreeComponent implements OnChanges {
         console.log('INFRA ID not found.');
         return;
       }
-      const target: Target = {
-        infra: {
-          id: infraID
-        },
-        name: node.label,
-        sensorCount: 0,
-      };
-      targets.push(target);
+      infraIDs.push(infraID);
     });
 
-    console.log(targets);
+    console.log(infraIDs);
 
-    this.targetService.registAll(targets, this.probeHost.probe.id)
+    this.targetService.registAll(infraIDs, this.probeHost.probe.id)
       .pipe(
         tap(() => {
         }),
diff --git a/@overflow/probe/component/probe-detail.component.html b/@overflow/probe/component/probe-detail.component.html
index 9519a69..b8be0d4 100644
--- a/@overflow/probe/component/probe-detail.component.html
+++ b/@overflow/probe/component/probe-detail.component.html
@@ -3,11 +3,11 @@
 
 <p-panel *ngIf="probeHost" #content [showHeader]="false" class="block-panel">
   <of-probe-general [probe]="probeHost.probe" (modified)="modifiedGeneral($event)"></of-probe-general>
-  <of-probe-host [infraHost]="probeHost.infraHost"></of-probe-host>
+  <of-probe-host *ngIf="probeHost.infraHost" [infraHost]="probeHost.infraHost"></of-probe-host>
 
   <div class="ui-g" dir="rtl">
-    <button class="ui-button-danger ui-button-width-fit" [disabled]="true" type="button" label="Remove this Probe" icon="ui-icon-close" pButton
-      (click)="remove(probeHost)"></button>
+    <button class="ui-button-danger ui-button-width-fit" [disabled]="true" type="button" label="Remove this Probe" icon="ui-icon-close"
+      pButton (click)="remove(probeHost)"></button>
     <button class="ui-button-width-fit" type="button" label="Discovery" icon="ui-icon-search" pButton (click)="discovery.emit(probeHost.id)"></button>
   </div>
 </p-panel>
diff --git a/@overflow/probe/component/probe-host.component.html b/@overflow/probe/component/probe-host.component.html
index 0184bce..7333171 100644
--- a/@overflow/probe/component/probe-host.component.html
+++ b/@overflow/probe/component/probe-host.component.html
@@ -18,15 +18,15 @@
       <p-panel [showHeader]="false">
         <div *ngIf="infraHost">
           <div class="ui-g">
-            <div class="ui-g-12 ui-md-6 ui-key-value">
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraZone">
               <of-key-value [key]="'IP ver'" [value]="infraHost.infraZone.metaIPType.name"></of-key-value>
             </div>
 
-            <div class="ui-g-12 ui-md-6 ui-key-value">
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraZone">
               <of-key-value [key]="'CIDR'" [value]="infraHost.infraZone.network"></of-key-value>
             </div>
 
-            <div class="ui-g-12 ui-md-6 ui-key-value">
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraZone">
               <of-key-value [key]="'Interface'" [value]="infraHost.infraZone.iface"></of-key-value>
             </div>
 
@@ -34,15 +34,15 @@
               <of-key-value [key]="'Host Type'" [value]="infraHost.metaTargetHostType.name"></of-key-value>
             </div>
 
-            <div class="ui-g-12 ui-md-6 ui-key-value">
-              <of-key-value [key]="'Host IP'" [value]="infraHost.infraZone.address"></of-key-value>
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraHostIPs">
+              <of-key-value [key]="'Host IP'" [value]="infraHost.infraHostIPs[0].address"></of-key-value>
             </div>
 
-            <div class="ui-g-12 ui-md-6 ui-key-value">
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraZone">
               <of-key-value [key]="'Host Mac'" [value]="infraHost.infraZone.mac"></of-key-value>
             </div>
 
-            <div class="ui-g-12 ui-md-6 ui-key-value">
+            <div class="ui-g-12 ui-md-6 ui-key-value" *ngIf="infraHost.infraHostOS">
               <of-key-value [key]="'Host OS'" [value]="infraHost.infraHostOS.name"></of-key-value>
             </div>
 
diff --git a/@overflow/probe/component/probe-list.component.html b/@overflow/probe/component/probe-list.component.html
index cf8fa43..fb97126 100644
--- a/@overflow/probe/component/probe-list.component.html
+++ b/@overflow/probe/component/probe-list.component.html
@@ -22,12 +22,12 @@
         <td>{{probeHost.probe.name}}</td>
         <td>{{getUptime(probeHost.probe)}}</td>
         <td>{{probeHost.probe.cidr}}</td>
-        <td>{{probeHost.infraHost.infraHostIPs[0].address}}</td>
-        <td>{{probeHost.infraHost.infraHostOS.name}}</td>
-        <td>{{probeHost.infraHost.infraZone.iface}}</td>
+        <td>{{probeHost.infraHost.infraHostIPs ? probeHost.infraHost.infraHostIPs[0].address : ''}}</td>
+        <td>{{probeHost.infraHost.infraHostOS ? probeHost.infraHost.infraHostOS.name : '' }}</td>
+        <td>{{probeHost.infraHost.infraZone ? probeHost.infraHost.infraZone.iface : ''}}</td>
         <td>{{probeHost.probe.targetCount}}</td>
         <td>{{probeHost.probe.authorizeDate | date: 'dd.MM.yyyy'}}</td>
-        <td>{{probeHost.probe.authorizeMember.name}}</td>
+        <td>{{probeHost.probe.authorizeMember.name || ''}}</td>
       </tr>
     </ng-template>
   </p-table>
diff --git a/@overflow/target/service/target.service.ts b/@overflow/target/service/target.service.ts
index 76aff06..45f4ab1 100644
--- a/@overflow/target/service/target.service.ts
+++ b/@overflow/target/service/target.service.ts
@@ -19,8 +19,8 @@ export class TargetService {
     return this.rpcService.call<Target>('TargetService.regist', target, probeID);
   }
 
-  public registAll(targets: Target[], probeID: number): Observable<Target[]> {
-    return this.rpcService.call<Target[]>('TargetService.registAll', targets, probeID);
+  public registAll(infraIDs: number[], probeID: number): Observable<Target[]> {
+    return this.rpcService.call<Target[]>('TargetService.registAll', infraIDs, probeID);
   }
 
   public remove(id: number, probeID: number) {