--- a/packages/net/ppp/current/ChangeLog
+++ b/packages/net/ppp/current/ChangeLog
@@ -1,3 +1,12 @@
+2005-01-16  Matt Jerdonek <maj1224@yahoo.com>
+            Andrew Lunn  <andrew.lunn@ascom.ch>
+	
+	* cdl/ppp.cdl 
+	* src/ppp_io.c (pppasyncstart): Conditionally allow the PPP daemon
+	to send a start flag at the beginning of very packet. This is not
+	required according to RFC 1662, but found to be necessary to
+	interwork with some broken implementations.
+
 2004-08-19  Oyvind Harboe <oyvind.harboe@zylin.com>
 2004-09-08  Andrew Lunn <andrew.lunn@ascom.ch>
 	

--- a/packages/net/ppp/current/cdl/ppp.cdl
+++ b/packages/net/ppp/current/cdl/ppp.cdl
@@ -234,6 +234,19 @@ cdl_package CYGPKG_PPP {
         
     }
 
+    cdl_component CYGPKG_PPP_WORKAROUNDS {
+        display "PPP workarounds for bugs in other implementations"
+        flavor  none
+        no_define
+
+        cdl_option CYGPKT_PPP_WORKAROUNDS_START_FLAG {
+        flavor bool
+        default_value false
+        description "This option enables a workaround to add a start
+                     flag to every packet. The RFC does not require this,
+                     but some broken PPP implementations seems to need it."
+        }
+    }
 
     cdl_component CYGPKG_PPP_OPTIONS {
         display "PPP build options"

--- a/packages/net/ppp/current/src/ppp_io.c
+++ b/packages/net/ppp/current/src/ppp_io.c
@@ -602,8 +602,11 @@ pppasyncstart(sc)
     int n, ndone, done, idle;
     struct mbuf *m2;
     int s;
-
     idle = 0;
+#ifdef CYGPKT_PPP_WORKAROUNDS_START_FLAG 
+    char start_flag = PPP_FLAG;
+    int start_flag_len = sizeof(start_flag);
+#endif
 
     while (1) {        
 	/*
@@ -623,7 +626,10 @@ pppasyncstart(sc)
 
 	    /* Calculate the FCS for the first mbuf's worth. */
 	    sc->sc_outfcs = pppfcs(PPP_INITFCS, mtod(m, u_char *), m->m_len);
-	    getmicrotime(&sc->sc_if.if_lastchange);
+            getmicrotime(&sc->sc_if.if_lastchange);
+#ifdef CYGPKT_PPP_WORKAROUNDS_START_FLAG
+            cyg_io_write(tp->t_handle, &start_flag, &start_flag_len);
+#endif            
 	}
 
 	for (;;) {