diff -urpb nmap-3.78/nmap.cc nmap-3.78mm/nmap.cc
--- nmap-3.78/nmap.cc	2004-12-12 01:46:18.000000000 +0100
+++ nmap-3.78mm/nmap.cc	2004-12-19 13:30:43.000000000 +0100
@@ -254,6 +254,7 @@ int nmap_main(int argc, char *argv[]) {
       {"host_timeout", required_argument, 0, 0},
       {"scan_delay", required_argument, 0, 0},
       {"max_scan_delay", required_argument, 0, 0},
+      {"max_retransmissions", required_argument, 0, 0},
       {"oA", required_argument, 0, 0},  
       {"oN", required_argument, 0, 0},
       {"oM", required_argument, 0, 0},  
@@ -408,6 +409,11 @@ int nmap_main(int argc, char *argv[]) {
 	}
 	o.setMaxTCPScanDelay(scand);
 	o.setMaxUDPScanDelay(scand);
+      } else if (strcmp(long_options[option_index].name, "max_retransmissions") == 0) {
+        int num_retrans = atoi(optarg);
+        if (num_retrans < 1)
+          fatal("max_retransmissions must be at least 1");
+        o.setMaxRetransmissions(num_retrans);
       } else if (strcmp(long_options[option_index].name, "randomize_hosts") == 0
 		 || strcmp(long_options[option_index].name, "rH") == 0) {
 	o.randomize_hosts = 1;
@@ -713,6 +719,7 @@ int nmap_main(int argc, char *argv[]) {
 	o.setMaxRttTimeout(1250);
 	o.setInitialRttTimeout(500);
         o.setMaxTCPScanDelay(10);
+        o.setMaxRetransmissions(4);
       } else if (*optarg == '5' || (strcasecmp(optarg, "Insane") == 0)) {
 	o.timing_level = 5;
 	o.setMinRttTimeout(50);
@@ -720,6 +727,7 @@ int nmap_main(int argc, char *argv[]) {
 	o.setInitialRttTimeout(250);
 	o.host_timeout = 900000;
         o.setMaxTCPScanDelay(5);
+        o.setMaxRetransmissions(2);
       } else {
 	fatal("Unknown timing mode (-T argment).  Use either \"Paranoid\", \"Sneaky\", \"Polite\", \"Normal\", \"Aggressive\", \"Insane\" or a number from 0 (Paranoid) to 5 (Insane)");
       }
diff -urpb nmap-3.78/nmap.h nmap-3.78mm/nmap.h
--- nmap-3.78/nmap.h	2004-10-18 18:59:37.000000000 +0200
+++ nmap-3.78mm/nmap.h	2004-12-19 13:30:43.000000000 +0100
@@ -327,6 +327,10 @@ void *realloc();
 #define INITIAL_RTT_TIMEOUT 1000 /* Allow 1 second initially for packet responses */
 #define HOST_TIMEOUT    0 /* By default allow unlimited time to scan each host */
 
+#ifndef MAX_RETRANSMISSIONS
+#define MAX_RETRANSMISSIONS 9    /* 10 probes to port at maximum */
+#endif
+
 /* If nmap is called with one of the names below, it will start up in interactive mode -- alternatively, you can rename Nmap any of the following names to have it start up interactivey by default.  */
 #define INTERACTIVE_NAMES { "BitchX", "Calendar", "X", "awk", "bash", "bash2", "calendar", "cat", "csh", "elm", "emacs", "ftp", "fvwm", "g++", "gcc", "gimp", "httpd", "irc", "man", "mutt", "nc", "ncftp", "netscape", "perl", "pine", "ping", "sleep", "slirp", "ssh", "sshd", "startx", "tcsh", "telnet", "telnetd", "tia", "top", "vi", "vim", "xdvi", "xemacs", "xterm", "xv" }
 
diff -urpb nmap-3.78/NmapOps.cc nmap-3.78mm/NmapOps.cc
--- nmap-3.78/NmapOps.cc	2004-12-19 13:38:06.000000000 +0100
+++ nmap-3.78mm/NmapOps.cc	2004-12-19 13:37:27.000000000 +0100
@@ -205,6 +205,7 @@ void NmapOps::Initialize() {
   max_rtt_timeout = MAX_RTT_TIMEOUT;
   min_rtt_timeout = MIN_RTT_TIMEOUT;
   initial_rtt_timeout = INITIAL_RTT_TIMEOUT;
+  max_retransmissions = MAX_RETRANSMISSIONS;
   min_host_group_sz = 1;
   max_host_group_sz = 100000; // don't want to be restrictive unles user sets
   max_tcp_scan_delay = MAX_TCP_SCAN_DELAY;
@@ -440,6 +441,14 @@ void NmapOps::setInitialRttTimeout(int r
   if (rtt < min_rtt_timeout) min_rtt_timeout = rtt;
 }
 
+void NmapOps::setMaxRetransmissions(int max_retransmit)
+{
+    if (max_retransmit < 1)
+        fatal("NmapOps::setMaxRetransmissions(): minimal value is 1");
+    max_retransmissions = max_retransmit;
+}
+
+
 void NmapOps::setMinHostGroupSz(unsigned int sz) {
   if (sz > max_host_group_sz)
     fatal("Minimum host group size may not be set to greater than maximum size (currently %d)\n", max_host_group_sz);
diff -urpb nmap-3.78/NmapOps.h nmap-3.78mm/NmapOps.h
--- nmap-3.78/NmapOps.h	2004-10-18 18:59:36.000000000 +0200
+++ nmap-3.78mm/NmapOps.h	2004-12-19 13:30:43.000000000 +0100
@@ -176,6 +176,8 @@ class NmapOps {
   void setMaxRttTimeout(int rtt);
   void setMinRttTimeout(int rtt);
   void setInitialRttTimeout(int rtt);
+  void setMaxRetransmissions(int max_retransmit);
+  int getMaxRetransmissions() { return max_retransmissions; }
 
   /* Similar functions for Host group size */
   int minHostGroupSz() { return min_host_group_sz; }
@@ -242,6 +244,7 @@ class NmapOps {
   int max_rtt_timeout;
   int min_rtt_timeout;
   int initial_rtt_timeout;
+  int max_retransmissions;
   unsigned int max_tcp_scan_delay;
   unsigned int max_udp_scan_delay;
   unsigned int min_host_group_sz;
diff -urpb nmap-3.78/scan_engine.cc nmap-3.78mm/scan_engine.cc
--- nmap-3.78/scan_engine.cc	2004-11-24 21:13:01.000000000 +0100
+++ nmap-3.78mm/scan_engine.cc	2004-12-19 13:30:43.000000000 +0100
@@ -913,7 +913,7 @@ static void init_perf_values(struct ultr
   perf->group_drop_cwnd_divisor = 2.0;
   perf->group_drop_ccthresh_divisor = (o.timing_level < 4)? 2.0 : 1.5;
   perf->host_drop_ccthresh_divisor = (o.timing_level < 4)? 2.0 : 1.5;
-  perf->tryno_cap = 12;
+  perf->tryno_cap = o.getMaxRetransmissions();
 }
 
 /* Order of initializations in this function CAN BE IMPORTANT, so be careful