  	icp->icmp_cksum = Internet::in_cksum((u_short*)icp,
  		8 + sizeof(ip) + 8);
  
---- /dev/null	Mon Jan 12 00:37:15 2004
+--- /dev/null	Thu Jan 15 14:50:05 2004
 +++ ns-allinone-2.26/ns-2.26/emulate/icmp.h	Sun Dec 14 20:33:36 2003
 @@ -0,0 +1,50 @@
 +/*

     fprintf(stderr,
 	    "IPTapAgent(%s): sendpkt attempted with NULL net\n",
 	    name());
@@ -273,27 +470,172 @@
     return(-1);
   }
 

  protected:
 	int command(int argc, const char*const* argv);
--- dist-ns-allinone-2.26/ns-2.26/emulate/iptap.cc	Wed Feb 26 15:08:40 2003
+++ ns-allinone-2.26/ns-2.26/emulate/iptap.cc	Thu Jan 15 13:16:30 2004
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 1998 The Regents of the University of California.
