diff -Naur qemu-0.10.6/vl.c qemu-0.10.6-option/vl.c
--- qemu-0.10.6/vl.c	2009-07-16 20:56:26.000000000 -0400
+++ qemu-0.10.6-option/vl.c	2009-11-10 12:54:46.000000000 -0500
@@ -157,6 +157,8 @@
 
 #include "exec-all.h"
 
+#include "pcap.h"
+
 //#define DEBUG_UNUSED_IOPORT
 //#define DEBUG_IOPORT
 //#define DEBUG_NET
@@ -4099,6 +4101,9 @@
            "-chroot dir     Chroot to dir just before starting the VM.\n"
            "-runas user     Change to user id user just before starting the VM.\n"
 #endif
+	   "-debug-e100     print E100 debug statments\n"
+	   "-pcap file_name\n"
+	   "                when -net user is enabled, dump packets to file_name,\n"
            "\n"
            "During emulation, the following keys are useful:\n"
            "ctrl-alt-f      toggle full screen\n"
@@ -4218,6 +4223,9 @@
     QEMU_OPTION_incoming,
     QEMU_OPTION_chroot,
     QEMU_OPTION_runas,
+    
+    QEMU_OPTION_debug_e100,
+    QEMU_OPTION_pcap,
 };
 
 typedef struct QEMUOption {
@@ -4348,6 +4356,9 @@
     { "incoming", HAS_ARG, QEMU_OPTION_incoming },
     { "chroot", HAS_ARG, QEMU_OPTION_chroot },
     { "runas", HAS_ARG, QEMU_OPTION_runas },
+
+    { "debug-e100", 0, QEMU_OPTION_debug_e100 },
+    { "pcap", HAS_ARG, QEMU_OPTION_pcap },
     { NULL },
 };
 
@@ -4622,6 +4633,7 @@
     struct passwd *pwd = NULL;
     const char *chroot_dir = NULL;
     const char *run_as = NULL;
+    extern int e100_debug;
 
     qemu_cache_utils_init(envp);
 
@@ -5283,6 +5295,12 @@
             case QEMU_OPTION_runas:
                 run_as = optarg;
                 break;
+	    case QEMU_OPTION_debug_e100:
+		e100_debug = 1;
+		break;
+	    case QEMU_OPTION_pcap:
+		pcap_dump_init(optarg);
+		break;
             }
         }
     }