Connection-to-national-centers.md

@@ -27,4 +27,9 @@ You need to declare the information matching you building DNS:
 ### Calern
   * FQDN ``, IP: `192.134.16.197`
 ### Valrose
-  * FQDN: ``, IP: `134.59.100.13`
+  * FQDN: ``, IP: `134.59.100.13`
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+
+## When connecting from OCA servers
+ * Licallo
+    * FQDN: `castor.oca.eu`, IP: `192.54.174.220` 
+    * FQDN: `pollux.oca.eu`, IP: `192.54.174.221`
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