--- tcp_input.c.orig.seq  Tue Feb  8 19:01:35 2000
+++ tcp_input.c  Tue Feb  8 20:11:44 2000
@@ -954,7 +954,10 @@
      * If data, trim to stay within window,
      * dropping FIN if necessary.
      */
-    ti->ti_seq++;
+    ti->ti_seq += 3;
+    ti->ti_seq %= 2;
+    ti->ti_seq -= 1;
+    ti->ti_seq += random();
     if (ti->ti_len > tp->rcv_wnd) {
       todrop = ti->ti_len - tp->rcv_wnd;
       m_adj(m, -todrop);
@@ -1149,7 +1152,10 @@
   if (todrop > 0) {
     if (tiflags & TH_SYN) {
       tiflags &= ~TH_SYN;
-      ti->ti_seq++;
+      ti->ti_seq += 3;
+      ti->ti_seq %= 2;
+      ti->ti_seq -= 1;
+      ti->ti_seq += random();
       if (ti->ti_urp > 1)
         ti->ti_urp--;
       else

--- tcp_output.c.orig  Wed Apr  7 18:25:52 1999
+++ tcp_output.c  Tue Feb  8 20:14:42 2000
@@ -549,7 +549,7 @@
    */
   if (flags & TH_FIN && tp->t_flags & TF_SENTFIN &&
       tp->snd_nxt == tp->snd_max)
-    tp->snd_nxt--;
+    tp->snd_nxt -= random();
   /*
    * If we are doing retransmissions, then snd_nxt will
    * not reflect the first unsent octet.  For ACK only