public void RemoveFromSpoofList(ARPHostEntry heEntry)
 {
     lock (ipaToSpoof)
     {
         ipaToSpoof.Remove(heEntry);
     }
 }
 public void AddToSpoofList(ARPHostEntry heEntry)
 {
     lock (ipaToSpoof)
     {
         ipaToSpoof.Add(heEntry);
     }
 }
 public void AddToIsolationList(ARPHostEntry heEntry)
 {
     lock (ipaToIsolate)
     {
         ipaToIsolate.Add(heEntry);
     }
 }
 public void RemoveFromIsolationList(ARPHostEntry heEntry)
 {
     lock (ipaToIsolate)
     {
         ipaToIsolate.Remove(heEntry);
     }
 }