diff --git a/client/shared/functions/ogUcastSendFile b/client/shared/functions/ogUcastSendFile
new file mode 100755
index 0000000..498965a
--- /dev/null
+++ b/client/shared/functions/ogUcastSendFile
@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+
+import sys
+import argparse
+from SystemLib import ogHelp
+from ProtocolLib import ogUcastSendFile
+
+if 2 == len (sys.argv) and 'help' == sys.argv[1]:
+    #parser.print_help() sale en inglés aunque la locale indique otra cosa
+    ogHelp ('ogUcastSendFile', 'ogUcastSendFile [str_REPOSITORY] [int_ndisk int_npart] /Relative_path_file sesionMcast(puerto:ip:ip:ip)', ['ogUcastSendFile 1 1 /aula1/winxp.img 8000:172.17.36.11:172.17.36.12', 'ogUcastSendFile REPO /aula1/ubuntu.iso sesionUcast', 'ogUcastSendFile CACHE /aula1/winxp.img sesionUcast', 'ogUcastSendFile /opt/opengnsys/images/aula1/hd500.vmx sesionUcast'])
+    sys.exit (0)
+
+parser = argparse.ArgumentParser (add_help=False)
+if 3  == len (sys.argv):
+    parser.add_argument ('file', nargs='?', default=None)
+    parser.add_argument ('sess', nargs='?', default=None)
+elif 4  == len (sys.argv):
+    parser.add_argument ('container', nargs='?', default=None)
+    parser.add_argument ('file', nargs='?', default=None)
+    parser.add_argument ('sess', nargs='?', default=None)
+elif 5  == len (sys.argv):
+    parser.add_argument ('disk', nargs='?', default=None)
+    parser.add_argument ('par', nargs='?', default=None)
+    parser.add_argument ('file', nargs='?', default=None)
+    parser.add_argument ('sess', nargs='?', default=None)
+
+args = parser.parse_args()
+
+if 3  == len (sys.argv):
+    ret = ogUcastSendFile (file=args.file, sess=args.sess)
+elif 4  == len (sys.argv):
+    ret = ogUcastSendFile (container=args.container, file=args.file, sess=args.sess)
+elif 5  == len (sys.argv):
+    ret = ogUcastSendFile (disk=args.disk, par=args.par, file=args.file, sess=args.sess)
+
+if ret is not None:
+    if   ret == True: sys.exit (0)
+    elif ret == False: sys.exit (1)
+    else: print (ret)
diff --git a/client/shared/scripts/updateCache.py b/client/shared/scripts/updateCache.py
index 773bef3..179781c 100644
--- a/client/shared/scripts/updateCache.py
+++ b/client/shared/scripts/updateCache.py
@@ -20,6 +20,7 @@
 
 import os.path
 import sys
+import re
 import time
 import subprocess
 import shutil
@@ -60,7 +61,7 @@ if SystemLib.ogGetCaller() not in ['deployImage', 'restoreBaseImage', 'restoreDi
 # Si MCASTWAIT menos que tiempo de espera del servidor lo aumento
 MCASTWAIT = ogGlobals.MCASTWAIT
 if ':' in optprotocolo:
-    port, wait = optprotocolo.split (':')
+    port, wait, *other = optprotocolo.split (':')
 else:
     port, wait = ('', '')
 if protocolo.startswith ('MULTICAST') and re.match (r'^-?\d+$', wait):
@@ -187,7 +188,7 @@ elif 'MULTICAST' == protocolo:
         sys.exit (1)
 
     SystemLib.ogEcho (['log', 'session'], None, f'ogMcastReceiverFile {port} CACHE {path}')
-    if not SystemLib.ogExecAndLog ('command', ProtocolLib.ogMcastReceiverFile, port, 'CACHE', path):
+    if not SystemLib.ogExecAndLog ('command', ProtocolLib.ogMcastReceiverFile, sess=port, container='CACHE', file=path):
         sys.exit (1)
 
     resumeupdatecache = subprocess.run (['grep', '--max-count', '1', '--before-context', '1', 'Transfer complete', f'{ogGlobals.OGLOGCOMMAND}.tmp'], capture_output=True, text=True).stdout