src: use /localhop component in LSA prefix

refs: #3899

Change-Id: Ibbb42adf3cc34e4a09e267bd73ffb248aad715d5
diff --git a/src/conf-parameter.hpp b/src/conf-parameter.hpp
index d1aabd9..5718b12 100644
--- a/src/conf-parameter.hpp
+++ b/src/conf-parameter.hpp
@@ -125,7 +125,8 @@
     m_chronosyncPrefix.append("NLSR");
     m_chronosyncPrefix.append("sync");
 
-    m_lsaPrefix = m_network;
+    m_lsaPrefix.append("localhop");
+    m_lsaPrefix.append(m_network);
     m_lsaPrefix.append("NLSR");
     m_lsaPrefix.append("LSA");
   }