      fprintf(stderr,
  	    "IPTapAgent(%s): sendpkt attempted with NULL net\n",
  	    name());
-@@ -273,27 +470,172 @@
+@@ -273,27 +470,173 @@
      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	Wed Jan  7 01:49:13 2004
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 1998 The Regents of the University of California.

 	icp->icmp_cksum = Internet::in_cksum((u_short*)icp,
 		8 + sizeof(ip) + 8);
 
--- /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 @@
+/*
